mirror of
https://github.com/eddyem/stm32samples.git
synced 2025-12-06 10:45:11 +03:00
canbus5bta
This commit is contained in:
Edward Emelianov
parent
75dc072d17
commit
c9a264c46b
@ -1 +0,0 @@
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New device that we intend to use instead of BTA PEP controllers.
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@ -1,9 +0,0 @@
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BINARY := BTA_CAN
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# MCU code
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MCU := F303xb
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# change this linking script depending on particular MCU model,
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LDSCRIPT := stm32f303xB.ld
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DEFINES := -DUSB1_16
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include ../makefile.f3
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include ../../makefile.stm32
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@ -1,123 +0,0 @@
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BTA CANbus node controller
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====================================
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# Pinout
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PP - push-pull, OD - open drain, I - floating input, A - analog input, AFn - alternate function number n.
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1 - active high, 0 - active low.
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### Sorted by pin number
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|**Pin #**|**Pin name **| **function**| **settings**|**comment ** |
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|---------|-------------|-------------|-------------|------------------|
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| 1 | VBAT | 3v3 | | |
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| 2 | PC13 | buzzer | PP1 | |
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| 3 | PC14 | relay | PP1 | |
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| 4 | PC15 | usb pullup | PP1 | |
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| 5 | PF0 | OSCIN | | |
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| 6 | PF1 | OSCOUT | | |
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| 7 | NRST | reset | | |
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| 8 | VSSA | gnd | | |
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| 9 | VDDA | 3v3 | | |
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| 10 | PA0 | AIN0 | A | |
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| 11 | PA1 | AIN1 | A | |
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| 12 | PA2 | ANI2 | A | |
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| 13 | PA3 | AIN3 | A | |
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| 14 | PA4 | DIN | I | mul0/1 input |
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| 15 | PA5 | DEN0 | PP0 | enable mul0 |
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| 16 | PA6 | DEN1 | PP0 | enable mul1 |
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| 17 | PA7 | PWM | AF1 | TIM17CH1 PWM |
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| 18 | PB0 | ADDR0 | PP | MUL address |
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| 19 | PB1 | ADDR1 | PP | selection |
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| 20 | PB2 | ADDR2 | PP | |
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| 21 | PB10 | PB10 | gpio | reserved gpio |
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| 22 | PB11 | PB11 | gpio | reserved gpio |
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| 23 | VSS | gnd | | |
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| 24 | VDD | 3v3 | | |
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| 25 | PB12 | SPI2 NSS | AF5 | isolated |
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| 26 | PB13 | SPI2 SCK | AF5 | external |
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| 27 | PB14 | SPI2 MISO | AF5 | SPI |
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| 28 | PB15 | SPI2 MOSI | AF5 | |
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| 29 | PA8 | PA8 | gpio | reserved gpio |
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| 30 | PA9 | USART1 TX | AF7 | RS-422 interface |
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| 31 | PA10 | USART1 RX | AF7 | (opt) |
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| 32 | PA11 | USB DM | AF14 | |
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| 33 | PA12 | USB DP | AF14 | |
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| 34 | PA13 | SWDIO | AF0 | |
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| 35 | VSS | gnd | | |
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| 36 | VDD | 3v3 | | |
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| 37 | PA14 | SWCLK | AF0 | |
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| 38 | PA15 | PA15 | gpio | reserved gpio |
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| 39 | PB3 | SPI1 SCK | AF5 | SSI interface |
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| 40 | PB4 | SPI1 MISO | AF5 | (opt) |
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| 41 | PB5 | X | | |
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| 42 | PB6 | I2C1 SCL | AF4 | non-isolated |
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| 43 | PB7 | I2C1 SDA | AF4 | ext. I2C |
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| 44 | BOOT0 | boot | | |
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| 45 | PB8 | CAN RX | AF9 | |
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| 46 | PB9 | CAN TX | AF9 | |
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| 47 | VSS | gnd | | |
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| 48 | VDD | 3v3 | | |
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|---------|-------------|-------------|-------------|------------------|
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### Sorted by port
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// sort -Vk4 Readme.md
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|**Pin #**|**Pin name **| **function**| **settings**|**comment ** |
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|---------|-------------|-------------|-------------|------------------|
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| 44 | BOOT0 | boot | | |
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| 7 | NRST | reset | | |
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| 10 | PA0 | AIN0 | A | |
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| 11 | PA1 | AIN1 | A | |
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| 12 | PA2 | ANI2 | A | |
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| 13 | PA3 | AIN3 | A | |
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| 14 | PA4 | DIN | I | mul0/1 input |
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| 15 | PA5 | DEN0 | PP0 | enable mul0 |
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| 16 | PA6 | DEN1 | PP0 | enable mul1 |
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| 17 | PA7 | PWM | AF1 | TIM17CH1 PWM |
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| 29 | PA8 | PA8 | gpio | reserved gpio |
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| 30 | PA9 | USART1 TX | AF7 | RS-422 interface |
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| 31 | PA10 | USART1 RX | AF7 | (opt) |
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| 32 | PA11 | USB DM | AF14 | |
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| 33 | PA12 | USB DP | AF14 | |
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| 34 | PA13 | SWDIO | AF0 | |
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| 37 | PA14 | SWCLK | AF0 | |
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| 38 | PA15 | PA15 | gpio | reserved gpio |
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| 18 | PB0 | ADDR0 | PP | MUL address |
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| 19 | PB1 | ADDR1 | PP | selection |
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| 20 | PB2 | ADDR2 | PP | |
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| 39 | PB3 | SPI1 SCK | AF5 | SSI interface |
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| 40 | PB4 | SPI1 MISO | AF5 | (opt) |
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| 41 | PB5 | X | | |
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| 42 | PB6 | I2C1 SCL | AF4 | non-isolated |
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| 43 | PB7 | I2C1 SDA | AF4 | ext. I2C |
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| 45 | PB8 | CAN RX | AF9 | |
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| 46 | PB9 | CAN TX | AF9 | |
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| 21 | PB10 | PB10 | gpio | reserved gpio |
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| 22 | PB11 | PB11 | gpio | reserved gpio |
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| 25 | PB12 | SPI2 NSS | AF5 | isolated |
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| 26 | PB13 | SPI2 SCK | AF5 | external |
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| 27 | PB14 | SPI2 MISO | AF5 | SPI |
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| 28 | PB15 | SPI2 MOSI | AF5 | |
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| 2 | PC13 | buzzer | PP1 | |
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| 3 | PC14 | relay | PP1 | |
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| 4 | PC15 | usb pullup | PP1 | |
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| 5 | PF0 | OSCIN | | |
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| 6 | PF1 | OSCOUT | | |
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| 1 | VBAT | 3v3 | | |
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| 9 | VDDA | 3v3 | | |
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| 24 | VDD | 3v3 | | |
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| 36 | VDD | 3v3 | | |
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| 48 | VDD | 3v3 | | |
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| 8 | VSSA | gnd | | |
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| 23 | VSS | gnd | | |
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| 35 | VSS | gnd | | |
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| 47 | VSS | gnd | | |
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|---------|-------------|-------------|-------------|------------------|
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## DMA usage
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### DMA1
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### DMA2
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@ -1,37 +0,0 @@
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/*
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* This file is part of the pl2303 project.
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* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
|
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* the Free Software Foundation, either version 3 of the License, or
|
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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||||||
* GNU General Public License for more details.
|
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||||||
*
|
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* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "hardware.h"
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#include "usart.h"
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static inline void gpio_setup(){
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RCC->AHBENR |= RCC_AHBENR_GPIOAEN | RCC_AHBENR_GPIOBEN;
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// LEDs on PB0 and PB1
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GPIOB->MODER = GPIO_MODER_MODER0_O | GPIO_MODER_MODER1_O;
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GPIOB->ODR = 1;
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// USB - alternate function 14 @ pins PA11/PA12; USART1 = AF7 @PA9/10; SWD - AF0 @PA13/14
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GPIOA->AFR[1] = AFRf(7, 9) | AFRf(7, 10) | AFRf(14, 11) | AFRf(14, 12);
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// USART1: PA10(Rx), PA9(Tx); USB - PA11, PA12; SWDIO - PA13, PA14; Pullup - PA15
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GPIOA->MODER = MODER_AF(9) | MODER_AF(10) | MODER_AF(11) | MODER_AF(12) | MODER_AF(13) | MODER_AF(14) | MODER_O(15);
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GPIOA->OSPEEDR = OSPEED_HI(11) | OSPEED_HI(12) | OSPEED_HI(13) | OSPEED_HI(14);
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}
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void hw_setup(){
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gpio_setup();
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}
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@ -1,34 +0,0 @@
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/*
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* This file is part of the pl2303 project.
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* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
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||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
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||||||
*/
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#pragma once
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#ifndef __HARDWARE_H__
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#define __HARDWARE_H__
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#include <stm32f3.h>
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#define USBPU_port GPIOA
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#define USBPU_pin (1<<15)
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#define USBPU_ON() pin_clear(USBPU_port, USBPU_pin)
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#define USBPU_OFF() pin_set(USBPU_port, USBPU_pin)
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extern volatile uint32_t Tms;
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void hw_setup();
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#endif // __HARDWARE_H__
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@ -1,89 +0,0 @@
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/*
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* This file is part of the pl2303 project.
|
|
||||||
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include "hardware.h"
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#include "proto.h"
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|
||||||
#include "usart.h"
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|
||||||
#include "usb.h"
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||||||
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||||||
#define MAXSTRLEN RBINSZ
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||||||
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const char *test = "123456789A123456789B123456789C123456789D123456789E123456789F123456789G123456789H123456789I123456789J123456789K123456789L123456789M123456789N123456789O123456789P123456789Q123456789R123456789S123456789T123456789U123456789V123456789W123456789X123456789Y\n"
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||||||
"123456789A123456789B123456789C123456789D123456789E123456789F123456789G123456789H123456789I123456789J123456789K123456789L123456789M123456789N123456789O123456789P123456789Q123456789R123456789S123456789T123456789U123456789V123456789W123456789X123456789Y\n";
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|
||||||
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||||||
volatile uint32_t Tms = 0;
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void sys_tick_handler(void){
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++Tms;
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}
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||||||
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||||||
int main(void){
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char inbuff[MAXSTRLEN+1];
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int hse = 0;
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USBPU_OFF();
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if(StartHSE()){
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hse = 1;
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||||||
SysTick_Config((uint32_t)72000); // 1ms
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||||||
}else{
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StartHSI();
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SysTick_Config((uint32_t)48000); // 1ms
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||||||
}
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hw_setup();
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||||||
usart_setup();
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USB_setup();
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USBPU_ON();
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if(hse) usart_send("Ready @ HSE");
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else usart_send("Ready @ HSI");
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usart_send(", CFGR="); usart_send(u2hexstr(RCC->CFGR));
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||||||
usart_send(", CR="); usart_send(u2hexstr(RCC->CR));
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usart_send(", SysFreq="); usart_send(u2str(SysFreq)); usart_putchar('\n');
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uint32_t ctr = Tms;
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while(1){
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if(Tms - ctr > 499){
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ctr = Tms;
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pin_toggle(GPIOB, 1 << 1 | 1 << 0); // toggle LED @ PB0
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||||||
}
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||||||
if(bufovr){
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||||||
bufovr = 0;
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||||||
usart_send("bufovr\n");
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|
||||||
}
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|
||||||
char *txt = NULL;
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|
||||||
if(usart_getline(&txt)){
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|
||||||
const char *ans = parse_cmd(txt);
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|
||||||
if(ans) usart_send(ans);
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|
||||||
}
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||||||
int l = USB_receivestr(inbuff, MAXSTRLEN);
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|
||||||
if(l < 0) USB_sendstr("ERROR: USB buffer overflow or string was too long\n");
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|
||||||
else if(l){
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||||||
usart_send("Get by USB ");
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||||||
usart_send(u2str(l)); usart_send(" bytes:");
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|
||||||
usart_send(inbuff); usart_putchar('\n');
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||||||
const char *ans = parse_cmd(inbuff);
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|
||||||
if(ans) USB_sendstr(ans);
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|
||||||
}
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|
||||||
if(starttest){
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|
||||||
USB_sendstr(test);
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|
||||||
if(0 == --starttest){
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|
||||||
#define SENDBOTH(x) do{char *_ = x; usart_send(_); USB_sendstr(_);}while(0)
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|
||||||
SENDBOTH("ENDT=");
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|
||||||
SENDBOTH(u2str(Tms));
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|
||||||
usart_putchar('\n'); USB_putbyte('\n');
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|
||||||
}
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|
||||||
}
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|
||||||
}
|
|
||||||
}
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|
||||||
@ -1,4 +0,0 @@
|
|||||||
set FLASH_SIZE 0x20000
|
|
||||||
|
|
||||||
source [find interface/stlink-v2-1.cfg]
|
|
||||||
source [find target/stm32f3x.cfg]
|
|
||||||
Binary file not shown.
@ -1 +0,0 @@
|
|||||||
-std=c17
|
|
||||||
@ -1,7 +0,0 @@
|
|||||||
// Add predefined macros for your project here. For example:
|
|
||||||
// #define THE_ANSWER 42
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|
||||||
#define EBUG
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|
||||||
#define STM32F3
|
|
||||||
#define STM32F303xb
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|
||||||
#define __thumb2__ 1
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|
||||||
#define __ARM_ARCH_7M__
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|
||||||
@ -1 +0,0 @@
|
|||||||
[General]
|
|
||||||
@ -1,171 +0,0 @@
|
|||||||
<?xml version="1.0" encoding="UTF-8"?>
|
|
||||||
<!DOCTYPE QtCreatorProject>
|
|
||||||
<!-- Written by QtCreator 8.0.2, 2023-04-17T15:07:13. -->
|
|
||||||
<qtcreator>
|
|
||||||
<data>
|
|
||||||
<variable>EnvironmentId</variable>
|
|
||||||
<value type="QByteArray">{cf63021e-ef53-49b0-b03b-2f2570cdf3b6}</value>
|
|
||||||
</data>
|
|
||||||
<data>
|
|
||||||
<variable>ProjectExplorer.Project.ActiveTarget</variable>
|
|
||||||
<value type="int">0</value>
|
|
||||||
</data>
|
|
||||||
<data>
|
|
||||||
<variable>ProjectExplorer.Project.EditorSettings</variable>
|
|
||||||
<valuemap type="QVariantMap">
|
|
||||||
<value type="bool" key="EditorConfiguration.AutoIndent">true</value>
|
|
||||||
<value type="bool" key="EditorConfiguration.AutoSpacesForTabs">false</value>
|
|
||||||
<value type="bool" key="EditorConfiguration.CamelCaseNavigation">true</value>
|
|
||||||
<valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.0">
|
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||||||
<valuelist type="QVariantList" key="GenericProjectManager.GenericMakeStep.BuildTargets">
|
|
||||||
<value type="QString">clean</value>
|
|
||||||
</valuelist>
|
|
||||||
<value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
|
|
||||||
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">GenericProjectManager.GenericMakeStep</value>
|
|
||||||
</valuemap>
|
|
||||||
<value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
|
|
||||||
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Очистка</value>
|
|
||||||
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Очистка</value>
|
|
||||||
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
|
|
||||||
</valuemap>
|
|
||||||
<value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
|
|
||||||
<value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
|
|
||||||
<valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.CustomParsers"/>
|
|
||||||
<value type="bool" key="ProjectExplorer.BuildConfiguration.ParseStandardOutput">false</value>
|
|
||||||
<valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
|
|
||||||
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Default</value>
|
|
||||||
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">GenericProjectManager.GenericBuildConfiguration</value>
|
|
||||||
</valuemap>
|
|
||||||
<value type="int" key="ProjectExplorer.Target.BuildConfigurationCount">1</value>
|
|
||||||
<valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.0">
|
|
||||||
<valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
|
|
||||||
<value type="int" key="ProjectExplorer.BuildStepList.StepsCount">0</value>
|
|
||||||
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Развёртывание</value>
|
|
||||||
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Развёртывание</value>
|
|
||||||
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
|
|
||||||
</valuemap>
|
|
||||||
<value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
|
|
||||||
<valuemap type="QVariantMap" key="ProjectExplorer.DeployConfiguration.CustomData"/>
|
|
||||||
<value type="bool" key="ProjectExplorer.DeployConfiguration.CustomDataEnabled">false</value>
|
|
||||||
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.DefaultDeployConfiguration</value>
|
|
||||||
</valuemap>
|
|
||||||
<value type="int" key="ProjectExplorer.Target.DeployConfigurationCount">1</value>
|
|
||||||
<valuemap type="QVariantMap" key="ProjectExplorer.Target.RunConfiguration.0">
|
|
||||||
<valuelist type="QVariantList" key="CustomOutputParsers"/>
|
|
||||||
<value type="int" key="PE.EnvironmentAspect.Base">2</value>
|
|
||||||
<valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
|
|
||||||
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.CustomExecutableRunConfiguration</value>
|
|
||||||
<value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey"></value>
|
|
||||||
<value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
|
|
||||||
<value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
|
|
||||||
<value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
|
|
||||||
<value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
|
|
||||||
</valuemap>
|
|
||||||
<value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
|
|
||||||
</valuemap>
|
|
||||||
</data>
|
|
||||||
<data>
|
|
||||||
<variable>ProjectExplorer.Project.TargetCount</variable>
|
|
||||||
<value type="int">1</value>
|
|
||||||
</data>
|
|
||||||
<data>
|
|
||||||
<variable>ProjectExplorer.Project.Updater.FileVersion</variable>
|
|
||||||
<value type="int">22</value>
|
|
||||||
</data>
|
|
||||||
<data>
|
|
||||||
<variable>Version</variable>
|
|
||||||
<value type="int">22</value>
|
|
||||||
</data>
|
|
||||||
</qtcreator>
|
|
||||||
@ -1 +0,0 @@
|
|||||||
-std=c++17
|
|
||||||
@ -1,15 +0,0 @@
|
|||||||
hardware.c
|
|
||||||
hardware.h
|
|
||||||
main.c
|
|
||||||
proto.c
|
|
||||||
proto.h
|
|
||||||
ringbuffer.c
|
|
||||||
ringbuffer.h
|
|
||||||
usart.c
|
|
||||||
usart.h
|
|
||||||
usb.c
|
|
||||||
usb.h
|
|
||||||
usb_lib.c
|
|
||||||
usb_lib.h
|
|
||||||
usbhw.c
|
|
||||||
usbhw.h
|
|
||||||
@ -1,6 +0,0 @@
|
|||||||
.
|
|
||||||
../inc
|
|
||||||
../inc/Fx
|
|
||||||
../inc/cm
|
|
||||||
../inc/ld
|
|
||||||
../inc/startup
|
|
||||||
@ -1,281 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of the pl2303 project.
|
|
||||||
* Copyright 2022 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include "proto.h"
|
|
||||||
#include "usart.h"
|
|
||||||
#include "usb.h"
|
|
||||||
#include "version.inc"
|
|
||||||
|
|
||||||
uint8_t starttest = 0;
|
|
||||||
|
|
||||||
char *omit_spaces(const char *buf){
|
|
||||||
while(*buf){
|
|
||||||
if(*buf > ' ') break;
|
|
||||||
++buf;
|
|
||||||
}
|
|
||||||
return (char*)buf;
|
|
||||||
}
|
|
||||||
|
|
||||||
// In case of overflow return `buf` and N==0xffffffff
|
|
||||||
// read decimal number & return pointer to next non-number symbol
|
|
||||||
static char *getdec(const char *buf, uint32_t *N){
|
|
||||||
char *start = (char*)buf;
|
|
||||||
uint32_t num = 0;
|
|
||||||
while(*buf){
|
|
||||||
char c = *buf;
|
|
||||||
if(c < '0' || c > '9'){
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
if(num > 429496729 || (num == 429496729 && c > '5')){ // overflow
|
|
||||||
*N = 0xffffff;
|
|
||||||
return start;
|
|
||||||
}
|
|
||||||
num *= 10;
|
|
||||||
num += c - '0';
|
|
||||||
++buf;
|
|
||||||
}
|
|
||||||
*N = num;
|
|
||||||
return (char*)buf;
|
|
||||||
}
|
|
||||||
// read hexadecimal number (without 0x prefix!)
|
|
||||||
static char *gethex(const char *buf, uint32_t *N){
|
|
||||||
char *start = (char*)buf;
|
|
||||||
uint32_t num = 0;
|
|
||||||
while(*buf){
|
|
||||||
char c = *buf;
|
|
||||||
uint8_t M = 0;
|
|
||||||
if(c >= '0' && c <= '9'){
|
|
||||||
M = '0';
|
|
||||||
}else if(c >= 'A' && c <= 'F'){
|
|
||||||
M = 'A' - 10;
|
|
||||||
}else if(c >= 'a' && c <= 'f'){
|
|
||||||
M = 'a' - 10;
|
|
||||||
}
|
|
||||||
if(M){
|
|
||||||
if(num & 0xf0000000){ // overflow
|
|
||||||
*N = 0xffffff;
|
|
||||||
return start;
|
|
||||||
}
|
|
||||||
num <<= 4;
|
|
||||||
num += c - M;
|
|
||||||
}else{
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
++buf;
|
|
||||||
}
|
|
||||||
*N = num;
|
|
||||||
return (char*)buf;
|
|
||||||
}
|
|
||||||
// read octal number (without 0 prefix!)
|
|
||||||
static char *getoct(const char *buf, uint32_t *N){
|
|
||||||
char *start = (char*)buf;
|
|
||||||
uint32_t num = 0;
|
|
||||||
while(*buf){
|
|
||||||
char c = *buf;
|
|
||||||
if(c < '0' || c > '7'){
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
if(num & 0xe0000000){ // overflow
|
|
||||||
*N = 0xffffff;
|
|
||||||
return start;
|
|
||||||
}
|
|
||||||
num <<= 3;
|
|
||||||
num += c - '0';
|
|
||||||
++buf;
|
|
||||||
}
|
|
||||||
*N = num;
|
|
||||||
return (char*)buf;
|
|
||||||
}
|
|
||||||
// read binary number (without b prefix!)
|
|
||||||
static char *getbin(const char *buf, uint32_t *N){
|
|
||||||
char *start = (char*)buf;
|
|
||||||
uint32_t num = 0;
|
|
||||||
while(*buf){
|
|
||||||
char c = *buf;
|
|
||||||
if(c < '0' || c > '1'){
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
if(num & 0x80000000){ // overflow
|
|
||||||
*N = 0xffffff;
|
|
||||||
return start;
|
|
||||||
}
|
|
||||||
num <<= 1;
|
|
||||||
if(c == '1') num |= 1;
|
|
||||||
++buf;
|
|
||||||
}
|
|
||||||
*N = num;
|
|
||||||
return (char*)buf;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief getnum - read uint32_t from string (dec, hex or bin: 127, 0x7f, 0b1111111)
|
|
||||||
* @param buf - buffer with number and so on
|
|
||||||
* @param N - the number read
|
|
||||||
* @return pointer to first non-number symbol in buf
|
|
||||||
* (if it is == buf, there's no number or if *N==0xffffffff there was overflow)
|
|
||||||
*/
|
|
||||||
char *getnum(const char *txt, uint32_t *N){
|
|
||||||
char *nxt = NULL;
|
|
||||||
char *s = omit_spaces(txt);
|
|
||||||
if(*s == '0'){ // hex, oct or 0
|
|
||||||
if(s[1] == 'x' || s[1] == 'X'){ // hex
|
|
||||||
nxt = gethex(s+2, N);
|
|
||||||
if(nxt == s+2) nxt = (char*)txt;
|
|
||||||
}else if(s[1] > '0'-1 && s[1] < '8'){ // oct
|
|
||||||
nxt = getoct(s+1, N);
|
|
||||||
if(nxt == s+1) nxt = (char*)txt;
|
|
||||||
}else{ // 0
|
|
||||||
nxt = s+1;
|
|
||||||
*N = 0;
|
|
||||||
}
|
|
||||||
}else if(*s == 'b' || *s == 'B'){
|
|
||||||
nxt = getbin(s+1, N);
|
|
||||||
if(nxt == s+1) nxt = (char*)txt;
|
|
||||||
}else{
|
|
||||||
nxt = getdec(s, N);
|
|
||||||
if(nxt == s) nxt = (char*)txt;
|
|
||||||
}
|
|
||||||
return nxt;
|
|
||||||
}
|
|
||||||
|
|
||||||
const char* helpmsg =
|
|
||||||
"https://github.com/eddyem/stm32samples/tree/master/F3:F303/PL2303 build#" BUILD_NUMBER " @ " BUILD_DATE "\n"
|
|
||||||
"'i' - print USB->ISTR state\n"
|
|
||||||
"'p' - toggle USB pullup\n"
|
|
||||||
"'N' - read number (dec, 0xhex, 0oct, bbin) and show it in decimal\n"
|
|
||||||
"'R' - software reset\n"
|
|
||||||
"'T' - test usb sending a very large message\n"
|
|
||||||
"'U' - get USB status\n"
|
|
||||||
"'W' - test watchdog\n"
|
|
||||||
;
|
|
||||||
|
|
||||||
static char stbuf[256], *bptr = NULL;
|
|
||||||
static int blen = 0;
|
|
||||||
static void initbuf(){bptr = stbuf; blen = 255; *bptr = 0;}
|
|
||||||
static void add2buf(const char *s){
|
|
||||||
while(blen && *s){
|
|
||||||
*bptr++ = *s++;
|
|
||||||
--blen;
|
|
||||||
}
|
|
||||||
*bptr = 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
extern uint8_t usbON;
|
|
||||||
const char *parse_cmd(const char *buf){
|
|
||||||
initbuf();
|
|
||||||
if(buf[1] == '\n' || !buf[1]){ // one symbol commands
|
|
||||||
switch(*buf){
|
|
||||||
case 'i':
|
|
||||||
add2buf("USB->ISTR=");
|
|
||||||
add2buf(u2hexstr(USB->ISTR));
|
|
||||||
add2buf(", USB->CNTR=");
|
|
||||||
add2buf(u2hexstr(USB->CNTR));
|
|
||||||
add2buf("\n");
|
|
||||||
break;
|
|
||||||
case 'p':
|
|
||||||
pin_toggle(USBPU_port, USBPU_pin);
|
|
||||||
add2buf("USB pullup is ");
|
|
||||||
if(pin_read(USBPU_port, USBPU_pin)) add2buf("off\n");
|
|
||||||
else add2buf("on\n");
|
|
||||||
break;
|
|
||||||
case 'R':
|
|
||||||
USB_sendstr("Soft reset\n");
|
|
||||||
usart_send("Soft reset\n");
|
|
||||||
NVIC_SystemReset();
|
|
||||||
break;
|
|
||||||
case 'T':
|
|
||||||
add2buf("STARTT=");
|
|
||||||
add2buf(u2str(Tms)); add2buf("\n");
|
|
||||||
starttest = 10;
|
|
||||||
break;
|
|
||||||
case 'U':
|
|
||||||
add2buf("USB status: ");
|
|
||||||
if(usbON) add2buf("ON");
|
|
||||||
else add2buf("OFF");
|
|
||||||
add2buf("\n");
|
|
||||||
break;
|
|
||||||
case 'W':
|
|
||||||
USB_sendstr("Wait for reboot\n");
|
|
||||||
usart_send("Wait for reboot\n");
|
|
||||||
while(1){nop();};
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
return helpmsg;
|
|
||||||
}
|
|
||||||
return stbuf;
|
|
||||||
}
|
|
||||||
uint32_t Num = 0;
|
|
||||||
char *nxt;
|
|
||||||
switch(*buf){ // long messages
|
|
||||||
case 'N':
|
|
||||||
++buf;
|
|
||||||
nxt = getnum(buf, &Num);
|
|
||||||
if(buf == nxt){
|
|
||||||
if(Num == 0) return "Wrong number\n";
|
|
||||||
return "Integer32 overflow\n";
|
|
||||||
}
|
|
||||||
add2buf("You give: ");
|
|
||||||
add2buf(u2str(Num));
|
|
||||||
if(*nxt && *nxt != '\n'){
|
|
||||||
add2buf(", the rest of string: ");
|
|
||||||
add2buf(nxt);
|
|
||||||
}else add2buf("\n");
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
return buf;
|
|
||||||
}
|
|
||||||
return stbuf;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
// return string with number `val`
|
|
||||||
char *u2str(uint32_t val){
|
|
||||||
static char strbuf[11];
|
|
||||||
char *bufptr = &strbuf[10];
|
|
||||||
*bufptr = 0;
|
|
||||||
if(!val){
|
|
||||||
*(--bufptr) = '0';
|
|
||||||
}else{
|
|
||||||
while(val){
|
|
||||||
*(--bufptr) = val % 10 + '0';
|
|
||||||
val /= 10;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return bufptr;
|
|
||||||
}
|
|
||||||
|
|
||||||
char *u2hexstr(uint32_t val){
|
|
||||||
static char strbuf[11] = "0x";
|
|
||||||
char *sptr = strbuf + 2;
|
|
||||||
uint8_t *ptr = (uint8_t*)&val + 3;
|
|
||||||
int8_t i, j, z=1;
|
|
||||||
for(i = 0; i < 4; ++i, --ptr){
|
|
||||||
if(*ptr == 0){ // omit leading zeros
|
|
||||||
if(i == 3) z = 0;
|
|
||||||
if(z) continue;
|
|
||||||
}
|
|
||||||
else z = 0;
|
|
||||||
for(j = 1; j > -1; --j){
|
|
||||||
uint8_t half = (*ptr >> (4*j)) & 0x0f;
|
|
||||||
if(half < 10) *sptr++ = half + '0';
|
|
||||||
else *sptr++ = half - 10 + 'a';
|
|
||||||
}
|
|
||||||
}
|
|
||||||
*sptr = 0;
|
|
||||||
return strbuf;
|
|
||||||
}
|
|
||||||
@ -1,33 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of the pl2303 project.
|
|
||||||
* Copyright 2022 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#pragma once
|
|
||||||
#ifndef PROTO_H__
|
|
||||||
#define PROTO_H__
|
|
||||||
|
|
||||||
#include <stm32f3.h>
|
|
||||||
|
|
||||||
extern uint8_t starttest;
|
|
||||||
|
|
||||||
const char *parse_cmd(const char *buf);
|
|
||||||
char *omit_spaces(const char *buf);
|
|
||||||
char *getnum(const char *buf, uint32_t *N);
|
|
||||||
char *u2str(uint32_t val);
|
|
||||||
char *u2hexstr(uint32_t val);
|
|
||||||
|
|
||||||
#endif // PROTO_H__
|
|
||||||
@ -1,124 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of the pl2303 project.
|
|
||||||
* Copyright 2022 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include "ringbuffer.h"
|
|
||||||
|
|
||||||
// stored data length
|
|
||||||
int RB_datalen(ringbuffer *b){
|
|
||||||
if(b->tail >= b->head) return (b->tail - b->head);
|
|
||||||
else return (b->length - b->head + b->tail);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief RB_hasbyte - check if buffer has given byte stored
|
|
||||||
* @param b - buffer
|
|
||||||
* @param byte - byte to find
|
|
||||||
* @return index if found, -1 if none
|
|
||||||
*/
|
|
||||||
int RB_hasbyte(ringbuffer *b, uint8_t byte){
|
|
||||||
if(b->head == b->tail) return -1; // no data in buffer
|
|
||||||
int startidx = b->head;
|
|
||||||
if(b->head > b->tail){ //
|
|
||||||
for(int found = b->head; found < b->length; ++found)
|
|
||||||
if(b->data[found] == byte) return found;
|
|
||||||
startidx = 0;
|
|
||||||
}
|
|
||||||
for(int found = startidx; found < b->tail; ++found)
|
|
||||||
if(b->data[found] == byte) return found;
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
// poor memcpy
|
|
||||||
static void mcpy(uint8_t *targ, const uint8_t *src, int l){
|
|
||||||
while(l--) *targ++ = *src++;
|
|
||||||
}
|
|
||||||
|
|
||||||
// increment head or tail
|
|
||||||
TRUE_INLINE void incr(ringbuffer *b, volatile int *what, int n){
|
|
||||||
*what += n;
|
|
||||||
if(*what >= b->length) *what -= b->length;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief RB_read - read data from ringbuffer
|
|
||||||
* @param b - buffer
|
|
||||||
* @param s - array to write data
|
|
||||||
* @param len - max len of `s`
|
|
||||||
* @return bytes read
|
|
||||||
*/
|
|
||||||
int RB_read(ringbuffer *b, uint8_t *s, int len){
|
|
||||||
int l = RB_datalen(b);
|
|
||||||
if(!l) return 0;
|
|
||||||
if(l > len) l = len;
|
|
||||||
int _1st = b->length - b->head;
|
|
||||||
if(_1st > l) _1st = l;
|
|
||||||
if(_1st > len) _1st = len;
|
|
||||||
mcpy(s, b->data + b->head, _1st);
|
|
||||||
if(_1st < len && l > _1st){
|
|
||||||
mcpy(s+_1st, b->data, l - _1st);
|
|
||||||
incr(b, &b->head, l);
|
|
||||||
return l;
|
|
||||||
}
|
|
||||||
incr(b, &b->head, _1st);
|
|
||||||
return _1st;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief RB_readto fill array `s` with data until byte `byte` (with it)
|
|
||||||
* @param b - ringbuffer
|
|
||||||
* @param byte - check byte
|
|
||||||
* @param s - buffer to write data
|
|
||||||
* @param len - length of `s`
|
|
||||||
* @return amount of bytes written (negative, if len<data in buffer)
|
|
||||||
*/
|
|
||||||
int RB_readto(ringbuffer *b, uint8_t byte, uint8_t *s, int len){
|
|
||||||
int idx = RB_hasbyte(b, byte);
|
|
||||||
if(idx < 0) return 0;
|
|
||||||
int partlen = idx + 1 - b->head;
|
|
||||||
// now calculate length of new data portion
|
|
||||||
if(idx < b->head) partlen += b->length;
|
|
||||||
if(partlen > len) return -RB_read(b, s, len);
|
|
||||||
return RB_read(b, s, partlen);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief RB_write - write some data to ringbuffer
|
|
||||||
* @param b - buffer
|
|
||||||
* @param str - data
|
|
||||||
* @param l - length
|
|
||||||
* @return amount of bytes written
|
|
||||||
*/
|
|
||||||
int RB_write(ringbuffer *b, const uint8_t *str, int l){
|
|
||||||
int r = b->length - 1 - RB_datalen(b); // rest length
|
|
||||||
if(l > r) l = r;
|
|
||||||
if(!l) return 0;
|
|
||||||
int _1st = b->length - b->tail;
|
|
||||||
if(_1st > l) _1st = l;
|
|
||||||
mcpy(b->data + b->tail, str, _1st);
|
|
||||||
if(_1st < l){ // add another piece from start
|
|
||||||
mcpy(b->data, str+_1st, l-_1st);
|
|
||||||
}
|
|
||||||
incr(b, &b->tail, l);
|
|
||||||
return l;
|
|
||||||
}
|
|
||||||
|
|
||||||
// just delete all information in buffer `b`
|
|
||||||
void RB_clearbuf(ringbuffer *b){
|
|
||||||
b->head = 0;
|
|
||||||
b->tail = 0;
|
|
||||||
}
|
|
||||||
@ -1,39 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of the pl2303 project.
|
|
||||||
* Copyright 2022 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#pragma once
|
|
||||||
#ifndef RINGBUFFER_H__
|
|
||||||
#define RINGBUFFER_H__
|
|
||||||
|
|
||||||
#include <stm32f3.h>
|
|
||||||
|
|
||||||
typedef struct{
|
|
||||||
uint8_t *data; // data buffer
|
|
||||||
const int length; // its length
|
|
||||||
int head; // head index
|
|
||||||
int tail; // tail index
|
|
||||||
} ringbuffer;
|
|
||||||
|
|
||||||
int RB_read(ringbuffer *b, uint8_t *s, int len);
|
|
||||||
int RB_readto(ringbuffer *b, uint8_t byte, uint8_t *s, int len);
|
|
||||||
int RB_hasbyte(ringbuffer *b, uint8_t byte);
|
|
||||||
int RB_write(ringbuffer *b, const uint8_t *str, int l);
|
|
||||||
int RB_datalen(ringbuffer *b);
|
|
||||||
void RB_clearbuf(ringbuffer *b);
|
|
||||||
|
|
||||||
#endif // RINGBUFFER_H__
|
|
||||||
@ -1,100 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of the pl2303 project.
|
|
||||||
* Copyright 2022 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include "stm32f3.h"
|
|
||||||
#include "hardware.h"
|
|
||||||
#include "usart.h"
|
|
||||||
#include <string.h>
|
|
||||||
|
|
||||||
static volatile int idatalen = 0; // received data line length (including '\n')
|
|
||||||
|
|
||||||
volatile int linerdy = 0, // received data ready
|
|
||||||
dlen = 0, // length of data (including '\n') in current buffer
|
|
||||||
bufovr = 0; // input buffer overfull
|
|
||||||
|
|
||||||
static volatile int rbufno = 0; // current rbuf number
|
|
||||||
static char rbuf[2][UARTBUFSZ]; // receive buffers
|
|
||||||
static volatile char *recvdata = NULL;
|
|
||||||
|
|
||||||
/**
|
|
||||||
* return length of received data (without trailing zero)
|
|
||||||
*/
|
|
||||||
int usart_getline(char **line){
|
|
||||||
if(bufovr){
|
|
||||||
bufovr = 0;
|
|
||||||
linerdy = 0;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
if(!linerdy) return 0;
|
|
||||||
*line = (char*)recvdata;
|
|
||||||
linerdy = 0;
|
|
||||||
return dlen;
|
|
||||||
}
|
|
||||||
|
|
||||||
void usart_putchar(const char ch){
|
|
||||||
while(!(USART1->ISR & USART_ISR_TXE));
|
|
||||||
USART1->TDR = ch;
|
|
||||||
}
|
|
||||||
void usart_sendn(const char *str, int L){
|
|
||||||
if(!str) return;
|
|
||||||
for(int i = 0; i < L; ++i){
|
|
||||||
usart_putchar(str[i]);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
void usart_send(const char *str){
|
|
||||||
if(!str) return;
|
|
||||||
int L = 0;
|
|
||||||
const char *ptr = str;
|
|
||||||
while(*ptr++) ++L;
|
|
||||||
usart_sendn(str, L);
|
|
||||||
}
|
|
||||||
|
|
||||||
void usart_setup(){
|
|
||||||
// clock
|
|
||||||
RCC->APB2ENR |= RCC_APB2ENR_USART1EN;
|
|
||||||
USART1->ICR = 0xffffffff; // clear all flags
|
|
||||||
USART1->BRR = SysFreq / 115200;
|
|
||||||
USART1->CR1 = USART_CR1_TE | USART_CR1_RE | USART_CR1_UE | USART_CR1_RXNEIE; // 1start,8data,nstop; enable Rx,Tx,USART
|
|
||||||
uint32_t tmout = 16000000;
|
|
||||||
while(!(USART1->ISR & USART_ISR_TC)){if(--tmout == 0) break;} // polling idle frame Transmission
|
|
||||||
USART1->ICR = 0xffffffff; // clear all flags again
|
|
||||||
NVIC_SetPriority(USART1_IRQn, 0);
|
|
||||||
NVIC_EnableIRQ(USART1_IRQn);
|
|
||||||
}
|
|
||||||
|
|
||||||
void usart1_exti25_isr(){
|
|
||||||
if(USART1->ISR & USART_ISR_RXNE){ // RX not emty - receive next char
|
|
||||||
// read RDR clears flag
|
|
||||||
uint8_t rb = USART1->RDR;
|
|
||||||
if(idatalen < UARTBUFSZ){ // put next char into buf
|
|
||||||
rbuf[rbufno][idatalen++] = rb;
|
|
||||||
if(rb == '\n'){ // got newline - line ready
|
|
||||||
linerdy = 1;
|
|
||||||
dlen = idatalen;
|
|
||||||
recvdata = rbuf[rbufno];
|
|
||||||
recvdata[dlen-1] = 0;
|
|
||||||
// prepare other buffer
|
|
||||||
rbufno = !rbufno;
|
|
||||||
idatalen = 0;
|
|
||||||
}
|
|
||||||
}else{ // buffer overrun
|
|
||||||
bufovr = 1;
|
|
||||||
idatalen = 0;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
@ -1,36 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of the pl2303 project.
|
|
||||||
* Copyright 2022 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#pragma once
|
|
||||||
#ifndef __USART_H__
|
|
||||||
#define __USART_H__
|
|
||||||
|
|
||||||
#include "hardware.h"
|
|
||||||
|
|
||||||
// input buffers size
|
|
||||||
#define UARTBUFSZ (80)
|
|
||||||
|
|
||||||
extern volatile int linerdy, bufovr;
|
|
||||||
|
|
||||||
void usart_setup();
|
|
||||||
int usart_getline(char **line);
|
|
||||||
void usart_send(const char *str);
|
|
||||||
void usart_sendn(const char *str, int L);
|
|
||||||
void usart_putchar(const char ch);
|
|
||||||
|
|
||||||
#endif // __USART_H__
|
|
||||||
@ -1,126 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of the pl2303 project.
|
|
||||||
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <string.h>
|
|
||||||
|
|
||||||
#include "hardware.h"
|
|
||||||
#include "usb.h"
|
|
||||||
#include "usb_lib.h"
|
|
||||||
|
|
||||||
static volatile uint8_t usbbuff[USB_TXBUFSZ]; // temporary buffer for sending data
|
|
||||||
// ring buffers for incoming and outgoing data
|
|
||||||
static uint8_t obuf[RBOUTSZ], ibuf[RBINSZ];
|
|
||||||
volatile ringbuffer rbout = {.data = obuf, .length = RBOUTSZ, .head = 0, .tail = 0};
|
|
||||||
volatile ringbuffer rbin = {.data = ibuf, .length = RBINSZ, .head = 0, .tail = 0};
|
|
||||||
// transmission is succesfull
|
|
||||||
volatile uint8_t bufisempty = 1;
|
|
||||||
volatile uint8_t bufovrfl = 0;
|
|
||||||
|
|
||||||
void send_next(){
|
|
||||||
if(bufisempty) return;
|
|
||||||
static int lastdsz = 0;
|
|
||||||
int buflen = RB_read((ringbuffer*)&rbout, (uint8_t*)usbbuff, USB_TXBUFSZ);
|
|
||||||
if(!buflen){
|
|
||||||
if(lastdsz == 64) EP_Write(3, NULL, 0); // send ZLP after 64 bits packet when nothing more to send
|
|
||||||
lastdsz = 0;
|
|
||||||
bufisempty = 1;
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
EP_Write(3, (uint8_t*)usbbuff, buflen);
|
|
||||||
lastdsz = buflen;
|
|
||||||
}
|
|
||||||
|
|
||||||
// blocking send full content of ring buffer
|
|
||||||
int USB_sendall(){
|
|
||||||
while(!bufisempty){
|
|
||||||
if(!usbON) return 0;
|
|
||||||
}
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
// put `buf` into queue to send
|
|
||||||
int USB_send(const uint8_t *buf, int len){
|
|
||||||
if(!buf || !usbON || !len) return 0;
|
|
||||||
while(len){
|
|
||||||
int a = RB_write((ringbuffer*)&rbout, buf, len);
|
|
||||||
len -= a;
|
|
||||||
buf += a;
|
|
||||||
if(bufisempty){
|
|
||||||
bufisempty = 0;
|
|
||||||
send_next();
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
int USB_putbyte(uint8_t byte){
|
|
||||||
if(!usbON) return 0;
|
|
||||||
while(0 == RB_write((ringbuffer*)&rbout, &byte, 1)){
|
|
||||||
if(bufisempty){
|
|
||||||
bufisempty = 0;
|
|
||||||
send_next();
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
int USB_sendstr(const char *string){
|
|
||||||
if(!string || !usbON) return 0;
|
|
||||||
int len = 0;
|
|
||||||
const char *b = string;
|
|
||||||
while(*b++) ++len;
|
|
||||||
if(!len) return 0;
|
|
||||||
return USB_send((const uint8_t*)string, len);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief USB_receive - get binary data from receiving ring-buffer
|
|
||||||
* @param buf (i) - buffer for received data
|
|
||||||
* @param len - length of `buf`
|
|
||||||
* @return amount of received bytes (negative, if overfull happened)
|
|
||||||
*/
|
|
||||||
int USB_receive(uint8_t *buf, int len){
|
|
||||||
int sz = RB_read((ringbuffer*)&rbin, buf, len);
|
|
||||||
if(bufovrfl){
|
|
||||||
RB_clearbuf((ringbuffer*)&rbin);
|
|
||||||
if(!sz) sz = -1;
|
|
||||||
else sz = -sz;
|
|
||||||
bufovrfl = 0;
|
|
||||||
}
|
|
||||||
return sz;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief USB_receivestr - get string up to '\n' and replace '\n' with 0
|
|
||||||
* @param buf - receiving buffer
|
|
||||||
* @param len - its length
|
|
||||||
* @return strlen or negative value indicating overflow (if so, string won't be ends with 0 and buffer should be cleared)
|
|
||||||
*/
|
|
||||||
int USB_receivestr(char *buf, int len){
|
|
||||||
int l = RB_readto((ringbuffer*)&rbin, '\n', (uint8_t*)buf, len);
|
|
||||||
if(l == 0) return 0;
|
|
||||||
if(--l < 0 || bufovrfl) RB_clearbuf((ringbuffer*)&rbin);
|
|
||||||
else buf[l] = 0; // replace '\n' with strend
|
|
||||||
if(bufovrfl){
|
|
||||||
if(l > 0) l = -l;
|
|
||||||
else l = -1;
|
|
||||||
bufovrfl = 0;
|
|
||||||
}
|
|
||||||
return l;
|
|
||||||
}
|
|
||||||
|
|
||||||
@ -1,49 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of the pl2303 project.
|
|
||||||
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#pragma once
|
|
||||||
|
|
||||||
#include "ringbuffer.h"
|
|
||||||
#include "usbhw.h"
|
|
||||||
|
|
||||||
// sizes of ringbuffers for outgoing and incoming data
|
|
||||||
#define RBOUTSZ (512)
|
|
||||||
#define RBINSZ (512)
|
|
||||||
|
|
||||||
#define newline() USB_putbyte('\n')
|
|
||||||
#define USND(s) do{USB_sendstr(s); USB_putbyte('\n');}while(0)
|
|
||||||
|
|
||||||
#define STR_HELPER(s) #s
|
|
||||||
#define STR(s) STR_HELPER(s)
|
|
||||||
|
|
||||||
#ifdef EBUG
|
|
||||||
#define DBG(str) do{USB_sendstr(__FILE__ " (L" STR(__LINE__) "): " str); newline();}while(0)
|
|
||||||
#else
|
|
||||||
#define DBG(str)
|
|
||||||
#endif
|
|
||||||
|
|
||||||
extern volatile ringbuffer rbout, rbin;
|
|
||||||
extern volatile uint8_t bufisempty, bufovrfl;
|
|
||||||
|
|
||||||
void send_next();
|
|
||||||
int USB_sendall();
|
|
||||||
int USB_send(const uint8_t *buf, int len);
|
|
||||||
int USB_putbyte(uint8_t byte);
|
|
||||||
int USB_sendstr(const char *string);
|
|
||||||
int USB_receive(uint8_t *buf, int len);
|
|
||||||
int USB_receivestr(char *buf, int len);
|
|
||||||
@ -1,438 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of the pl2303 project.
|
|
||||||
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <stdint.h>
|
|
||||||
#include "usb.h"
|
|
||||||
#include "usb_lib.h"
|
|
||||||
#include "usbhw.h"
|
|
||||||
|
|
||||||
ep_t endpoints[STM32ENDPOINTS];
|
|
||||||
|
|
||||||
static uint16_t USB_Addr = 0;
|
|
||||||
static usb_LineCoding lineCoding = {115200, 0, 0, 8};
|
|
||||||
uint8_t ep0databuf[EP0DATABUF_SIZE], setupdatabuf[EP0DATABUF_SIZE];
|
|
||||||
static config_pack_t *setup_packet = (config_pack_t*) setupdatabuf;
|
|
||||||
|
|
||||||
usb_LineCoding getLineCoding(){return lineCoding;}
|
|
||||||
|
|
||||||
volatile uint8_t usbON = 0; // device disconnected from terminal
|
|
||||||
|
|
||||||
// definition of parts common for USB_DeviceDescriptor & USB_DeviceQualifierDescriptor
|
|
||||||
#define bcdUSB_L 0x10
|
|
||||||
#define bcdUSB_H 0x01
|
|
||||||
#define bDeviceClass 0
|
|
||||||
#define bDeviceSubClass 0
|
|
||||||
#define bDeviceProtocol 0
|
|
||||||
#define bNumConfigurations 1
|
|
||||||
|
|
||||||
static const uint8_t USB_DeviceDescriptor[] = {
|
|
||||||
18, // bLength
|
|
||||||
0x01, // bDescriptorType - Device descriptor
|
|
||||||
bcdUSB_L, // bcdUSB_L - 1.10
|
|
||||||
bcdUSB_H, // bcdUSB_H
|
|
||||||
bDeviceClass, // bDeviceClass - USB_COMM
|
|
||||||
bDeviceSubClass, // bDeviceSubClass
|
|
||||||
bDeviceProtocol, // bDeviceProtocol
|
|
||||||
USB_EP0_BUFSZ, // bMaxPacketSize
|
|
||||||
0x7b, // idVendor_L PL2303: VID=0x067b, PID=0x2303
|
|
||||||
0x06, // idVendor_H
|
|
||||||
0x03, // idProduct_L
|
|
||||||
0x23, // idProduct_H
|
|
||||||
0x00, // bcdDevice_Ver_L
|
|
||||||
0x03, // bcdDevice_Ver_H
|
|
||||||
iMANUFACTURER_DESCR, // iManufacturer
|
|
||||||
iPRODUCT_DESCR, // iProduct
|
|
||||||
iSERIAL_DESCR, // iSerialNumber
|
|
||||||
bNumConfigurations // bNumConfigurations
|
|
||||||
};
|
|
||||||
|
|
||||||
static const uint8_t USB_DeviceQualifierDescriptor[] = {
|
|
||||||
10, //bLength
|
|
||||||
0x06, // bDescriptorType - Device qualifier
|
|
||||||
bcdUSB_L, // bcdUSB_L
|
|
||||||
bcdUSB_H, // bcdUSB_H
|
|
||||||
bDeviceClass, // bDeviceClass
|
|
||||||
bDeviceSubClass, // bDeviceSubClass
|
|
||||||
bDeviceProtocol, // bDeviceProtocol
|
|
||||||
USB_EP0_BUFSZ, // bMaxPacketSize0
|
|
||||||
bNumConfigurations, // bNumConfigurations
|
|
||||||
0x00 // Reserved
|
|
||||||
};
|
|
||||||
|
|
||||||
static const uint8_t USB_ConfigDescriptor[] = {
|
|
||||||
/*Configuration Descriptor*/
|
|
||||||
0x09, /* bLength: Configuration Descriptor size */
|
|
||||||
0x02, /* bDescriptorType: Configuration */
|
|
||||||
39, /* wTotalLength:no of returned bytes */
|
|
||||||
0x00,
|
|
||||||
0x01, /* bNumInterfaces: 1 interface */
|
|
||||||
0x01, /* bConfigurationValue: Configuration value */
|
|
||||||
0x00, /* iConfiguration: Index of string descriptor describing the configuration */
|
|
||||||
0xa0, /* bmAttributes - Bus powered, Remote wakeup */
|
|
||||||
0x32, /* MaxPower 100 mA */
|
|
||||||
|
|
||||||
/*---------------------------------------------------------------------------*/
|
|
||||||
|
|
||||||
/*Interface Descriptor */
|
|
||||||
0x09, /* bLength: Interface Descriptor size */
|
|
||||||
0x04, /* bDescriptorType: Interface */
|
|
||||||
0x00, /* bInterfaceNumber: Number of Interface */
|
|
||||||
0x00, /* bAlternateSetting: Alternate setting */
|
|
||||||
0x03, /* bNumEndpoints: 3 endpoints used */
|
|
||||||
0xff, /* bInterfaceClass */
|
|
||||||
0x00, /* bInterfaceSubClass */
|
|
||||||
0x00, /* bInterfaceProtocol */
|
|
||||||
iINTERFACE_DESCR, /* iInterface: */
|
|
||||||
///////////////////////////////////////////////////
|
|
||||||
/*Endpoint 1 Descriptor*/
|
|
||||||
0x07, /* bLength: Endpoint Descriptor size */
|
|
||||||
0x05, /* bDescriptorType: Endpoint */
|
|
||||||
0x81, /* bEndpointAddress IN1 */
|
|
||||||
0x03, /* bmAttributes: Interrupt */
|
|
||||||
0x0a, /* wMaxPacketSize LO: */
|
|
||||||
0x00, /* wMaxPacketSize HI: */
|
|
||||||
0x01, /* bInterval: */
|
|
||||||
|
|
||||||
/*Endpoint OUT2 Descriptor*/
|
|
||||||
0x07, /* bLength: Endpoint Descriptor size */
|
|
||||||
0x05, /* bDescriptorType: Endpoint */
|
|
||||||
0x02, /* bEndpointAddress: OUT2 */
|
|
||||||
0x02, /* bmAttributes: Bulk */
|
|
||||||
(USB_RXBUFSZ & 0xff), /* wMaxPacketSize: 64 */
|
|
||||||
(USB_RXBUFSZ >> 8),
|
|
||||||
0x00, /* bInterval: ignore for Bulk transfer */
|
|
||||||
|
|
||||||
/*Endpoint IN3 Descriptor*/
|
|
||||||
0x07, /* bLength: Endpoint Descriptor size */
|
|
||||||
0x05, /* bDescriptorType: Endpoint */
|
|
||||||
0x83, /* bEndpointAddress IN3 */
|
|
||||||
0x02, /* bmAttributes: Bulk */
|
|
||||||
(USB_TXBUFSZ & 0xff), /* wMaxPacketSize: 64 */
|
|
||||||
(USB_TXBUFSZ >> 8),
|
|
||||||
0x00, /* bInterval: ignore for Bulk transfer */
|
|
||||||
};
|
|
||||||
|
|
||||||
_USB_LANG_ID_(LD, LANG_US);
|
|
||||||
_USB_STRING_(SD, u"0.0.1");
|
|
||||||
_USB_STRING_(MD, u"Prolific Technology Inc.");
|
|
||||||
_USB_STRING_(PD, u"USB-Serial Controller");
|
|
||||||
_USB_STRING_(ID, u"pl2303_emulator");
|
|
||||||
static void const *StringDescriptor[iDESCR_AMOUNT] = {
|
|
||||||
[iLANGUAGE_DESCR] = &LD,
|
|
||||||
[iMANUFACTURER_DESCR] = &MD,
|
|
||||||
[iPRODUCT_DESCR] = &PD,
|
|
||||||
[iSERIAL_DESCR] = &SD,
|
|
||||||
[iINTERFACE_DESCR] = &ID
|
|
||||||
};
|
|
||||||
|
|
||||||
|
|
||||||
/*
|
|
||||||
* default handlers
|
|
||||||
*/
|
|
||||||
// SET_LINE_CODING
|
|
||||||
void WEAK linecoding_handler(usb_LineCoding __attribute__((unused)) *lc){
|
|
||||||
}
|
|
||||||
|
|
||||||
// SET_CONTROL_LINE_STATE
|
|
||||||
void WEAK clstate_handler(uint16_t __attribute__((unused)) val){
|
|
||||||
}
|
|
||||||
|
|
||||||
// SEND_BREAK
|
|
||||||
void WEAK break_handler(){
|
|
||||||
}
|
|
||||||
|
|
||||||
// handler of vendor requests
|
|
||||||
void WEAK vendor_handler(config_pack_t *packet){
|
|
||||||
uint16_t c;
|
|
||||||
if(packet->bmRequestType & 0x80){ // read
|
|
||||||
switch(packet->wValue){
|
|
||||||
case 0x8484:
|
|
||||||
c = 2;
|
|
||||||
break;
|
|
||||||
case 0x0080:
|
|
||||||
c = 1;
|
|
||||||
break;
|
|
||||||
case 0x8686:
|
|
||||||
c = 0xaa;
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
c = 0;
|
|
||||||
}
|
|
||||||
EP_WriteIRQ(0, (uint8_t*)&c, 1);
|
|
||||||
}else{ // write ZLP
|
|
||||||
c = 0;
|
|
||||||
EP_WriteIRQ(0, (uint8_t *)&c, 0);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static void wr0(const uint8_t *buf, uint16_t size){
|
|
||||||
if(setup_packet->wLength < size) size = setup_packet->wLength; // shortened request
|
|
||||||
if(size < endpoints[0].txbufsz){
|
|
||||||
EP_WriteIRQ(0, buf, size);
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
while(size){
|
|
||||||
uint16_t l = size;
|
|
||||||
if(l > endpoints[0].txbufsz) l = endpoints[0].txbufsz;
|
|
||||||
EP_WriteIRQ(0, buf, l);
|
|
||||||
buf += l;
|
|
||||||
size -= l;
|
|
||||||
uint8_t needzlp = (l == endpoints[0].txbufsz) ? 1 : 0;
|
|
||||||
if(size || needzlp){ // send last data buffer
|
|
||||||
uint16_t status = KEEP_DTOG(USB->EPnR[0]);
|
|
||||||
// keep DTOGs, clear CTR_RX,TX, set TX VALID, leave stat_Rx
|
|
||||||
USB->EPnR[0] = (status & ~(USB_EPnR_CTR_RX|USB_EPnR_CTR_TX|USB_EPnR_STAT_RX))
|
|
||||||
^ USB_EPnR_STAT_TX;
|
|
||||||
uint32_t ctr = 1000000;
|
|
||||||
while(--ctr && (USB->ISTR & USB_ISTR_CTR) == 0){IWDG->KR = IWDG_REFRESH;};
|
|
||||||
if((USB->ISTR & USB_ISTR_CTR) == 0){
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
if(needzlp) EP_WriteIRQ(0, (uint8_t*)0, 0);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static inline void get_descriptor(){
|
|
||||||
uint8_t descrtype = setup_packet->wValue >> 8,
|
|
||||||
descridx = setup_packet->wValue & 0xff;
|
|
||||||
switch(descrtype){
|
|
||||||
case DEVICE_DESCRIPTOR:
|
|
||||||
wr0(USB_DeviceDescriptor, sizeof(USB_DeviceDescriptor));
|
|
||||||
break;
|
|
||||||
case CONFIGURATION_DESCRIPTOR:
|
|
||||||
wr0(USB_ConfigDescriptor, sizeof(USB_ConfigDescriptor));
|
|
||||||
break;
|
|
||||||
case STRING_DESCRIPTOR:
|
|
||||||
if(descridx < iDESCR_AMOUNT) wr0((const uint8_t *)StringDescriptor[descridx], *((uint8_t*)StringDescriptor[descridx]));
|
|
||||||
else EP_WriteIRQ(0, (uint8_t*)0, 0);
|
|
||||||
break;
|
|
||||||
case DEVICE_QUALIFIER_DESCRIPTOR:
|
|
||||||
wr0(USB_DeviceQualifierDescriptor, USB_DeviceQualifierDescriptor[0]);
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static uint16_t configuration = 0; // reply for GET_CONFIGURATION (==1 if configured)
|
|
||||||
static inline void std_d2h_req(){
|
|
||||||
uint16_t status = 0; // bus powered
|
|
||||||
switch(setup_packet->bRequest){
|
|
||||||
case GET_DESCRIPTOR:
|
|
||||||
get_descriptor();
|
|
||||||
break;
|
|
||||||
case GET_STATUS:
|
|
||||||
EP_WriteIRQ(0, (uint8_t *)&status, 2); // send status: Bus Powered
|
|
||||||
break;
|
|
||||||
case GET_CONFIGURATION:
|
|
||||||
EP_WriteIRQ(0, (uint8_t*)&configuration, 1);
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// interrupt IN handler (never used?)
|
|
||||||
static void EP1_Handler(){
|
|
||||||
uint16_t epstatus = KEEP_DTOG(USB->EPnR[1]);
|
|
||||||
if(RX_FLAG(epstatus)) epstatus = (epstatus & ~USB_EPnR_STAT_TX) ^ USB_EPnR_STAT_RX; // set valid RX
|
|
||||||
else epstatus = epstatus & ~(USB_EPnR_STAT_TX|USB_EPnR_STAT_RX);
|
|
||||||
// clear CTR
|
|
||||||
epstatus = (epstatus & ~(USB_EPnR_CTR_RX|USB_EPnR_CTR_TX));
|
|
||||||
USB->EPnR[1] = epstatus;
|
|
||||||
}
|
|
||||||
|
|
||||||
// data IN/OUT handlers
|
|
||||||
static void transmit_Handler(){ // EP3IN
|
|
||||||
uint16_t epstatus = KEEP_DTOG_STAT(USB->EPnR[3]);
|
|
||||||
// clear CTR keep DTOGs & STATs
|
|
||||||
USB->EPnR[3] = (epstatus & ~(USB_EPnR_CTR_TX)); // clear TX ctr
|
|
||||||
send_next();
|
|
||||||
}
|
|
||||||
|
|
||||||
static void receive_Handler(){ // EP2OUT
|
|
||||||
uint8_t buf[USB_RXBUFSZ];
|
|
||||||
uint16_t epstatus = KEEP_DTOG(USB->EPnR[2]);
|
|
||||||
uint8_t sz = EP_Read(2, (uint8_t*)buf);
|
|
||||||
if(sz){
|
|
||||||
if(RB_write((ringbuffer*)&rbin, buf, sz) != sz) bufovrfl = 1;
|
|
||||||
}
|
|
||||||
// keep stat_tx & set ACK rx, clear RX ctr
|
|
||||||
USB->EPnR[2] = (epstatus & ~USB_EPnR_CTR_RX) ^ USB_EPnR_STAT_RX;
|
|
||||||
}
|
|
||||||
|
|
||||||
static inline void std_h2d_req(){
|
|
||||||
switch(setup_packet->bRequest){
|
|
||||||
case SET_ADDRESS:
|
|
||||||
// new address will be assigned later - after acknowlegement or request to host
|
|
||||||
USB_Addr = setup_packet->wValue;
|
|
||||||
break;
|
|
||||||
case SET_CONFIGURATION:
|
|
||||||
// Now device configured
|
|
||||||
configuration = setup_packet->wValue;
|
|
||||||
EP_Init(1, EP_TYPE_INTERRUPT, USB_EP1BUFSZ, 0, EP1_Handler); // IN1 - transmit
|
|
||||||
EP_Init(2, EP_TYPE_BULK, 0, USB_RXBUFSZ, receive_Handler); // OUT2 - receive data
|
|
||||||
EP_Init(3, EP_TYPE_BULK, USB_TXBUFSZ, 0, transmit_Handler); // IN3 - transmit data
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
bmRequestType: 76543210
|
|
||||||
7 direction: 0 - host->device, 1 - device->host
|
|
||||||
65 type: 0 - standard, 1 - class, 2 - vendor
|
|
||||||
4..0 getter: 0 - device, 1 - interface, 2 - endpoint, 3 - other
|
|
||||||
*/
|
|
||||||
/**
|
|
||||||
* Endpoint0 (control) handler
|
|
||||||
*/
|
|
||||||
void EP0_Handler(){
|
|
||||||
uint16_t epstatus = USB->EPnR[0]; // EP0R on input -> return this value after modifications
|
|
||||||
uint8_t reqtype = setup_packet->bmRequestType & 0x7f;
|
|
||||||
uint8_t dev2host = (setup_packet->bmRequestType & 0x80) ? 1 : 0;
|
|
||||||
int rxflag = RX_FLAG(epstatus);
|
|
||||||
if(rxflag && SETUP_FLAG(epstatus)){
|
|
||||||
switch(reqtype){
|
|
||||||
case STANDARD_DEVICE_REQUEST_TYPE: // standard device request
|
|
||||||
if(dev2host){
|
|
||||||
std_d2h_req();
|
|
||||||
}else{
|
|
||||||
std_h2d_req();
|
|
||||||
EP_WriteIRQ(0, (uint8_t *)0, 0);
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
case STANDARD_ENDPOINT_REQUEST_TYPE: // standard endpoint request
|
|
||||||
if(setup_packet->bRequest == CLEAR_FEATURE){
|
|
||||||
EP_WriteIRQ(0, (uint8_t *)0, 0);
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
case VENDOR_REQUEST_TYPE:
|
|
||||||
vendor_handler(setup_packet);
|
|
||||||
break;
|
|
||||||
case CONTROL_REQUEST_TYPE:
|
|
||||||
switch(setup_packet->bRequest){
|
|
||||||
case GET_LINE_CODING:
|
|
||||||
EP_WriteIRQ(0, (uint8_t*)&lineCoding, sizeof(lineCoding));
|
|
||||||
break;
|
|
||||||
case SET_LINE_CODING: // omit this for next stage, when data will come
|
|
||||||
break;
|
|
||||||
case SET_CONTROL_LINE_STATE:
|
|
||||||
usbON = 1;
|
|
||||||
clstate_handler(setup_packet->wValue);
|
|
||||||
break;
|
|
||||||
case SEND_BREAK:
|
|
||||||
usbON = 0;
|
|
||||||
break_handler();
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
if(setup_packet->bRequest != GET_LINE_CODING) EP_WriteIRQ(0, (uint8_t *)0, 0); // write acknowledgement
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
EP_WriteIRQ(0, (uint8_t *)0, 0);
|
|
||||||
}
|
|
||||||
}else if(rxflag){ // got data over EP0 or host acknowlegement
|
|
||||||
if(endpoints[0].rx_cnt){
|
|
||||||
if(setup_packet->bRequest == SET_LINE_CODING){
|
|
||||||
linecoding_handler((usb_LineCoding*)ep0databuf);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
} else if(TX_FLAG(epstatus)){ // package transmitted
|
|
||||||
// now we can change address after enumeration
|
|
||||||
if ((USB->DADDR & USB_DADDR_ADD) != USB_Addr){
|
|
||||||
USB->DADDR = USB_DADDR_EF | USB_Addr;
|
|
||||||
usbON = 0;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
epstatus = KEEP_DTOG(USB->EPnR[0]);
|
|
||||||
if(rxflag) epstatus ^= USB_EPnR_STAT_TX; // start ZLP/data transmission
|
|
||||||
else epstatus &= ~USB_EPnR_STAT_TX; // or leave unchanged
|
|
||||||
// keep DTOGs, clear CTR_RX,TX, set RX VALID
|
|
||||||
USB->EPnR[0] = (epstatus & ~(USB_EPnR_CTR_RX|USB_EPnR_CTR_TX)) ^ USB_EPnR_STAT_RX;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Write data to EP buffer (called from IRQ handler)
|
|
||||||
* @param number - EP number
|
|
||||||
* @param *buf - array with data
|
|
||||||
* @param size - its size
|
|
||||||
*/
|
|
||||||
void EP_WriteIRQ(uint8_t number, const uint8_t *buf, uint16_t size){
|
|
||||||
if(size > endpoints[number].txbufsz) size = endpoints[number].txbufsz;
|
|
||||||
uint16_t N2 = (size + 1) >> 1;
|
|
||||||
// the buffer is 16-bit, so we should copy data as it would be uint16_t
|
|
||||||
uint16_t *buf16 = (uint16_t *)buf;
|
|
||||||
#if defined USB1_16
|
|
||||||
// very bad: what if `size` is odd?
|
|
||||||
uint32_t *out = (uint32_t *)endpoints[number].tx_buf;
|
|
||||||
for(int i = 0; i < N2; ++i, ++out){
|
|
||||||
*out = buf16[i];
|
|
||||||
}
|
|
||||||
#elif defined USB2_16
|
|
||||||
// use memcpy instead?
|
|
||||||
for(int i = 0; i < N2; i++){
|
|
||||||
endpoints[number].tx_buf[i] = buf16[i];
|
|
||||||
}
|
|
||||||
#else
|
|
||||||
#error "Define USB1_16 or USB2_16"
|
|
||||||
#endif
|
|
||||||
USB_BTABLE->EP[number].USB_COUNT_TX = size;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Write data to EP buffer (called outside IRQ handler)
|
|
||||||
* @param number - EP number
|
|
||||||
* @param *buf - array with data
|
|
||||||
* @param size - its size
|
|
||||||
*/
|
|
||||||
void EP_Write(uint8_t number, const uint8_t *buf, uint16_t size){
|
|
||||||
EP_WriteIRQ(number, buf, size);
|
|
||||||
uint16_t status = KEEP_DTOG(USB->EPnR[number]);
|
|
||||||
// keep DTOGs, clear CTR_TX & set TX VALID to start transmission
|
|
||||||
USB->EPnR[number] = (status & ~(USB_EPnR_CTR_TX)) ^ USB_EPnR_STAT_TX;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Copy data from EP buffer into user buffer area
|
|
||||||
* @param *buf - user array for data
|
|
||||||
* @return amount of data read
|
|
||||||
*/
|
|
||||||
int EP_Read(uint8_t number, uint8_t *buf){
|
|
||||||
int sz = endpoints[number].rx_cnt;
|
|
||||||
if(!sz) return 0;
|
|
||||||
endpoints[number].rx_cnt = 0;
|
|
||||||
#if defined USB1_16
|
|
||||||
int n = (sz + 1) >> 1;
|
|
||||||
uint32_t *in = (uint32_t*)endpoints[number].rx_buf;
|
|
||||||
uint16_t *out = (uint16_t*)buf;
|
|
||||||
for(int i = 0; i < n; ++i, ++in)
|
|
||||||
out[i] = *(uint16_t*)in;
|
|
||||||
#elif defined USB2_16
|
|
||||||
// use memcpy instead?
|
|
||||||
for(int i = 0; i < sz; ++i)
|
|
||||||
buf[i] = endpoints[number].rx_buf[i];
|
|
||||||
#else
|
|
||||||
#error "Define USB1_16 or USB2_16"
|
|
||||||
#endif
|
|
||||||
return sz;
|
|
||||||
}
|
|
||||||
|
|
||||||
@ -1,171 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of the pl2303 project.
|
|
||||||
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#pragma once
|
|
||||||
|
|
||||||
#include <wchar.h>
|
|
||||||
#include "usbhw.h"
|
|
||||||
|
|
||||||
#define EP0DATABUF_SIZE (64)
|
|
||||||
#define LASTADDR_DEFAULT (STM32ENDPOINTS * 8)
|
|
||||||
|
|
||||||
// bmRequestType & 0x7f
|
|
||||||
#define STANDARD_DEVICE_REQUEST_TYPE 0
|
|
||||||
#define STANDARD_ENDPOINT_REQUEST_TYPE 2
|
|
||||||
#define VENDOR_REQUEST_TYPE 0x40
|
|
||||||
#define CONTROL_REQUEST_TYPE 0x21
|
|
||||||
// bRequest, standard; for bmRequestType == 0x80
|
|
||||||
#define GET_STATUS 0x00
|
|
||||||
#define GET_DESCRIPTOR 0x06
|
|
||||||
#define GET_CONFIGURATION 0x08
|
|
||||||
// for bmRequestType == 0
|
|
||||||
#define CLEAR_FEATURE 0x01
|
|
||||||
#define SET_FEATURE 0x03 // unused
|
|
||||||
#define SET_ADDRESS 0x05
|
|
||||||
#define SET_DESCRIPTOR 0x07 // unused
|
|
||||||
#define SET_CONFIGURATION 0x09
|
|
||||||
// for bmRequestType == 0x81, 1 or 0xB2
|
|
||||||
#define GET_INTERFACE 0x0A // unused
|
|
||||||
#define SET_INTERFACE 0x0B // unused
|
|
||||||
#define SYNC_FRAME 0x0C // unused
|
|
||||||
#define VENDOR_REQUEST 0x01 // unused
|
|
||||||
|
|
||||||
// Class-Specific Control Requests
|
|
||||||
#define SEND_ENCAPSULATED_COMMAND 0x00 // unused
|
|
||||||
#define GET_ENCAPSULATED_RESPONSE 0x01 // unused
|
|
||||||
#define SET_COMM_FEATURE 0x02 // unused
|
|
||||||
#define GET_COMM_FEATURE 0x03 // unused
|
|
||||||
#define CLEAR_COMM_FEATURE 0x04 // unused
|
|
||||||
#define SET_LINE_CODING 0x20
|
|
||||||
#define GET_LINE_CODING 0x21
|
|
||||||
#define SET_CONTROL_LINE_STATE 0x22
|
|
||||||
#define SEND_BREAK 0x23
|
|
||||||
|
|
||||||
// control line states
|
|
||||||
#define CONTROL_DTR 0x01
|
|
||||||
#define CONTROL_RTS 0x02
|
|
||||||
|
|
||||||
// string descriptors
|
|
||||||
enum{
|
|
||||||
iLANGUAGE_DESCR,
|
|
||||||
iMANUFACTURER_DESCR,
|
|
||||||
iPRODUCT_DESCR,
|
|
||||||
iSERIAL_DESCR,
|
|
||||||
iINTERFACE_DESCR,
|
|
||||||
iDESCR_AMOUNT
|
|
||||||
};
|
|
||||||
|
|
||||||
// Types of descriptors
|
|
||||||
#define DEVICE_DESCRIPTOR 0x01
|
|
||||||
#define CONFIGURATION_DESCRIPTOR 0x02
|
|
||||||
#define STRING_DESCRIPTOR 0x03
|
|
||||||
#define DEVICE_QUALIFIER_DESCRIPTOR 0x06
|
|
||||||
|
|
||||||
#define RX_FLAG(epstat) (epstat & USB_EPnR_CTR_RX)
|
|
||||||
#define TX_FLAG(epstat) (epstat & USB_EPnR_CTR_TX)
|
|
||||||
#define SETUP_FLAG(epstat) (epstat & USB_EPnR_SETUP)
|
|
||||||
|
|
||||||
// EPnR bits manipulation
|
|
||||||
#define KEEP_DTOG_STAT(EPnR) (EPnR & ~(USB_EPnR_STAT_RX|USB_EPnR_STAT_TX|USB_EPnR_DTOG_RX|USB_EPnR_DTOG_TX))
|
|
||||||
#define KEEP_DTOG(EPnR) (EPnR & ~(USB_EPnR_DTOG_RX|USB_EPnR_DTOG_TX))
|
|
||||||
|
|
||||||
// EP types
|
|
||||||
#define EP_TYPE_BULK 0x00
|
|
||||||
#define EP_TYPE_CONTROL 0x01
|
|
||||||
#define EP_TYPE_ISO 0x02
|
|
||||||
#define EP_TYPE_INTERRUPT 0x03
|
|
||||||
|
|
||||||
#define LANG_US (uint16_t)0x0409
|
|
||||||
|
|
||||||
#define _USB_STRING_(name, str) \
|
|
||||||
static const struct name \
|
|
||||||
{ \
|
|
||||||
uint8_t bLength; \
|
|
||||||
uint8_t bDescriptorType; \
|
|
||||||
uint16_t bString[(sizeof(str) - 2) / 2]; \
|
|
||||||
\
|
|
||||||
} \
|
|
||||||
name = {sizeof(name), 0x03, str}
|
|
||||||
|
|
||||||
#define _USB_LANG_ID_(name, lng_id) \
|
|
||||||
\
|
|
||||||
static const struct name \
|
|
||||||
{ \
|
|
||||||
uint8_t bLength; \
|
|
||||||
uint8_t bDescriptorType; \
|
|
||||||
uint16_t bString; \
|
|
||||||
\
|
|
||||||
} \
|
|
||||||
name = {0x04, 0x03, lng_id}
|
|
||||||
|
|
||||||
// EP0 configuration packet
|
|
||||||
typedef struct {
|
|
||||||
uint8_t bmRequestType;
|
|
||||||
uint8_t bRequest;
|
|
||||||
uint16_t wValue;
|
|
||||||
uint16_t wIndex;
|
|
||||||
uint16_t wLength;
|
|
||||||
} config_pack_t;
|
|
||||||
|
|
||||||
// endpoints state
|
|
||||||
typedef struct{
|
|
||||||
uint16_t *tx_buf; // transmission buffer address
|
|
||||||
uint16_t txbufsz; // transmission buffer size
|
|
||||||
uint8_t *rx_buf; // reception buffer address
|
|
||||||
void (*func)(); // endpoint action function
|
|
||||||
unsigned rx_cnt : 10; // received data counter
|
|
||||||
} ep_t;
|
|
||||||
|
|
||||||
typedef struct {
|
|
||||||
uint32_t dwDTERate;
|
|
||||||
uint8_t bCharFormat;
|
|
||||||
#define USB_CDC_1_STOP_BITS 0
|
|
||||||
#define USB_CDC_1_5_STOP_BITS 1
|
|
||||||
#define USB_CDC_2_STOP_BITS 2
|
|
||||||
uint8_t bParityType;
|
|
||||||
#define USB_CDC_NO_PARITY 0
|
|
||||||
#define USB_CDC_ODD_PARITY 1
|
|
||||||
#define USB_CDC_EVEN_PARITY 2
|
|
||||||
#define USB_CDC_MARK_PARITY 3
|
|
||||||
#define USB_CDC_SPACE_PARITY 4
|
|
||||||
uint8_t bDataBits;
|
|
||||||
} __attribute__ ((packed)) usb_LineCoding;
|
|
||||||
|
|
||||||
typedef struct {
|
|
||||||
uint8_t bmRequestType;
|
|
||||||
uint8_t bNotificationType;
|
|
||||||
uint16_t wValue;
|
|
||||||
uint16_t wIndex;
|
|
||||||
uint16_t wLength;
|
|
||||||
} __attribute__ ((packed)) usb_cdc_notification;
|
|
||||||
|
|
||||||
extern ep_t endpoints[];
|
|
||||||
extern volatile uint8_t usbON;
|
|
||||||
extern uint8_t ep0databuf[], setupdatabuf[];
|
|
||||||
|
|
||||||
void EP0_Handler();
|
|
||||||
|
|
||||||
void EP_WriteIRQ(uint8_t number, const uint8_t *buf, uint16_t size);
|
|
||||||
void EP_Write(uint8_t number, const uint8_t *buf, uint16_t size);
|
|
||||||
int EP_Read(uint8_t number, uint8_t *buf);
|
|
||||||
usb_LineCoding getLineCoding();
|
|
||||||
|
|
||||||
void linecoding_handler(usb_LineCoding *lc);
|
|
||||||
void clstate_handler(uint16_t val);
|
|
||||||
void break_handler();
|
|
||||||
void vendor_handler(config_pack_t *packet);
|
|
||||||
@ -1,123 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of the pl2303 project.
|
|
||||||
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include "usb.h"
|
|
||||||
#include "usb_lib.h"
|
|
||||||
|
|
||||||
// here we suppose that all PIN settings done in hw_setup earlier
|
|
||||||
void USB_setup(){
|
|
||||||
NVIC_DisableIRQ(USB_LP_IRQn);
|
|
||||||
// remap USB LP & Wakeup interrupts to 75 and 76 - works only on pure F303
|
|
||||||
RCC->APB2ENR |= RCC_APB2ENR_SYSCFGEN; // enable tacting of SYSCFG
|
|
||||||
SYSCFG->CFGR1 |= SYSCFG_CFGR1_USB_IT_RMP;
|
|
||||||
RCC->APB1ENR |= RCC_APB1ENR_USBEN;
|
|
||||||
USB->CNTR = USB_CNTR_FRES; // Force USB Reset
|
|
||||||
for(uint32_t ctr = 0; ctr < 72000; ++ctr) nop(); // wait >1ms
|
|
||||||
//uint32_t ctr = 0;
|
|
||||||
USB->CNTR = 0;
|
|
||||||
USB->BTABLE = 0;
|
|
||||||
USB->DADDR = 0;
|
|
||||||
USB->ISTR = 0;
|
|
||||||
USB->CNTR = USB_CNTR_RESETM | USB_CNTR_WKUPM; // allow only wakeup & reset interrupts
|
|
||||||
NVIC_EnableIRQ(USB_LP_IRQn);
|
|
||||||
}
|
|
||||||
|
|
||||||
static uint16_t lastaddr = LASTADDR_DEFAULT;
|
|
||||||
/**
|
|
||||||
* Endpoint initialisation
|
|
||||||
* @param number - EP num (0...7)
|
|
||||||
* @param type - EP type (EP_TYPE_BULK, EP_TYPE_CONTROL, EP_TYPE_ISO, EP_TYPE_INTERRUPT)
|
|
||||||
* @param txsz - transmission buffer size @ USB/CAN buffer
|
|
||||||
* @param rxsz - reception buffer size @ USB/CAN buffer
|
|
||||||
* @param uint16_t (*func)(ep_t *ep) - EP handler function
|
|
||||||
* @return 0 if all OK
|
|
||||||
*/
|
|
||||||
int EP_Init(uint8_t number, uint8_t type, uint16_t txsz, uint16_t rxsz, void (*func)(ep_t ep)){
|
|
||||||
if(number >= STM32ENDPOINTS) return 4; // out of configured amount
|
|
||||||
if(txsz > USB_BTABLE_SIZE || rxsz > USB_BTABLE_SIZE) return 1; // buffer too large
|
|
||||||
if(lastaddr + txsz + rxsz >= USB_BTABLE_SIZE) return 2; // out of btable
|
|
||||||
USB->EPnR[number] = (type << 9) | (number & USB_EPnR_EA);
|
|
||||||
USB->EPnR[number] ^= USB_EPnR_STAT_RX | USB_EPnR_STAT_TX_1;
|
|
||||||
if(rxsz & 1 || rxsz > 512) return 3; // wrong rx buffer size
|
|
||||||
uint16_t countrx = 0;
|
|
||||||
if(rxsz < 64) countrx = rxsz / 2;
|
|
||||||
else{
|
|
||||||
if(rxsz & 0x1f) return 3; // should be multiple of 32
|
|
||||||
countrx = 31 + rxsz / 32;
|
|
||||||
}
|
|
||||||
USB_BTABLE->EP[number].USB_ADDR_TX = lastaddr;
|
|
||||||
endpoints[number].tx_buf = (uint16_t *)(USB_BTABLE_BASE + lastaddr * ACCESSZ);
|
|
||||||
endpoints[number].txbufsz = txsz;
|
|
||||||
lastaddr += txsz;
|
|
||||||
USB_BTABLE->EP[number].USB_COUNT_TX = 0;
|
|
||||||
USB_BTABLE->EP[number].USB_ADDR_RX = lastaddr;
|
|
||||||
endpoints[number].rx_buf = (uint8_t *)(USB_BTABLE_BASE + lastaddr * ACCESSZ);
|
|
||||||
lastaddr += rxsz;
|
|
||||||
USB_BTABLE->EP[number].USB_COUNT_RX = countrx << 10;
|
|
||||||
endpoints[number].func = func;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
// standard IRQ handler
|
|
||||||
void usb_lp_isr(){
|
|
||||||
if(USB->ISTR & USB_ISTR_RESET){
|
|
||||||
usbON = 0;
|
|
||||||
// Reinit registers
|
|
||||||
USB->CNTR = USB_CNTR_RESETM | USB_CNTR_CTRM | USB_CNTR_SUSPM | USB_CNTR_WKUPM;
|
|
||||||
// Endpoint 0 - CONTROL
|
|
||||||
// ON USB LS size of EP0 may be 8 bytes, but on FS it should be 64 bytes!
|
|
||||||
lastaddr = LASTADDR_DEFAULT;
|
|
||||||
// clear address, leave only enable bit
|
|
||||||
USB->DADDR = USB_DADDR_EF;
|
|
||||||
if(EP_Init(0, EP_TYPE_CONTROL, USB_EP0_BUFSZ, USB_EP0_BUFSZ, EP0_Handler)){
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
USB->ISTR = ~USB_ISTR_RESET;
|
|
||||||
}
|
|
||||||
if(USB->ISTR & USB_ISTR_CTR){
|
|
||||||
// EP number
|
|
||||||
uint8_t n = USB->ISTR & USB_ISTR_EPID;
|
|
||||||
// copy status register
|
|
||||||
uint16_t epstatus = USB->EPnR[n];
|
|
||||||
// copy received bytes amount
|
|
||||||
endpoints[n].rx_cnt = USB_BTABLE->EP[n].USB_COUNT_RX & 0x3FF; // low 10 bits is counter
|
|
||||||
// check direction
|
|
||||||
if(USB->ISTR & USB_ISTR_DIR){ // OUT interrupt - receive data, CTR_RX==1 (if CTR_TX == 1 - two pending transactions: receive following by transmit)
|
|
||||||
if(n == 0){ // control endpoint
|
|
||||||
if(epstatus & USB_EPnR_SETUP){ // setup packet -> copy data to conf_pack
|
|
||||||
EP_Read(0, setupdatabuf);
|
|
||||||
// interrupt handler will be called later
|
|
||||||
}else if(epstatus & USB_EPnR_CTR_RX){ // data packet -> push received data to ep0databuf
|
|
||||||
EP_Read(0, ep0databuf);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
// call EP handler
|
|
||||||
if(endpoints[n].func) endpoints[n].func(endpoints[n]);
|
|
||||||
}
|
|
||||||
if(USB->ISTR & USB_ISTR_SUSP){ // suspend -> still no connection, may sleep
|
|
||||||
usbON = 0;
|
|
||||||
USB->CNTR |= USB_CNTR_FSUSP | USB_CNTR_LP_MODE;
|
|
||||||
USB->ISTR = ~USB_ISTR_SUSP;
|
|
||||||
}
|
|
||||||
if(USB->ISTR & USB_ISTR_WKUP){ // wakeup
|
|
||||||
USB->CNTR &= ~(USB_CNTR_FSUSP | USB_CNTR_LP_MODE); // clear suspend flags
|
|
||||||
USB->ISTR = ~USB_ISTR_WKUP;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
@ -1,113 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of the pl2303 project.
|
|
||||||
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#pragma once
|
|
||||||
|
|
||||||
#include <stm32f3.h>
|
|
||||||
|
|
||||||
// max endpoints number
|
|
||||||
#define STM32ENDPOINTS 8
|
|
||||||
/**
|
|
||||||
* Buffers size definition
|
|
||||||
**/
|
|
||||||
#define USB_BTABLE_SIZE 768
|
|
||||||
// first 64 bytes of USB_BTABLE are registers!
|
|
||||||
//#define USB_EP0_BASEADDR 64
|
|
||||||
// for USB FS EP0 buffers are from 8 to 64 bytes long (64 for PL2303)
|
|
||||||
#define USB_EP0_BUFSZ 64
|
|
||||||
// USB transmit buffer size (64 for PL2303)
|
|
||||||
#define USB_TXBUFSZ 64
|
|
||||||
// USB receive buffer size (64 for PL2303)
|
|
||||||
#define USB_RXBUFSZ 64
|
|
||||||
// EP1 - interrupt - buffer size
|
|
||||||
#define USB_EP1BUFSZ 8
|
|
||||||
|
|
||||||
#define USB_BTABLE_BASE 0x40006000
|
|
||||||
#define USB ((USB_TypeDef *) USB_BASE)
|
|
||||||
|
|
||||||
#ifdef USB_BTABLE
|
|
||||||
#undef USB_BTABLE
|
|
||||||
#endif
|
|
||||||
#define USB_BTABLE ((USB_BtableDef *)(USB_BTABLE_BASE))
|
|
||||||
#define USB_ISTR_EPID 0x0000000F
|
|
||||||
#define USB_FNR_LSOF_0 0x00000800
|
|
||||||
#define USB_FNR_lSOF_1 0x00001000
|
|
||||||
#define USB_LPMCSR_BESL_0 0x00000010
|
|
||||||
#define USB_LPMCSR_BESL_1 0x00000020
|
|
||||||
#define USB_LPMCSR_BESL_2 0x00000040
|
|
||||||
#define USB_LPMCSR_BESL_3 0x00000080
|
|
||||||
#define USB_EPnR_CTR_RX 0x00008000
|
|
||||||
#define USB_EPnR_DTOG_RX 0x00004000
|
|
||||||
#define USB_EPnR_STAT_RX 0x00003000
|
|
||||||
#define USB_EPnR_STAT_RX_0 0x00001000
|
|
||||||
#define USB_EPnR_STAT_RX_1 0x00002000
|
|
||||||
#define USB_EPnR_SETUP 0x00000800
|
|
||||||
#define USB_EPnR_EP_TYPE 0x00000600
|
|
||||||
#define USB_EPnR_EP_TYPE_0 0x00000200
|
|
||||||
#define USB_EPnR_EP_TYPE_1 0x00000400
|
|
||||||
#define USB_EPnR_EP_KIND 0x00000100
|
|
||||||
#define USB_EPnR_CTR_TX 0x00000080
|
|
||||||
#define USB_EPnR_DTOG_TX 0x00000040
|
|
||||||
#define USB_EPnR_STAT_TX 0x00000030
|
|
||||||
#define USB_EPnR_STAT_TX_0 0x00000010
|
|
||||||
#define USB_EPnR_STAT_TX_1 0x00000020
|
|
||||||
#define USB_EPnR_EA 0x0000000F
|
|
||||||
#define USB_COUNTn_RX_BLSIZE 0x00008000
|
|
||||||
#define USB_COUNTn_NUM_BLOCK 0x00007C00
|
|
||||||
#define USB_COUNTn_RX 0x0000003F
|
|
||||||
|
|
||||||
#define USB_TypeDef USB_TypeDef_custom
|
|
||||||
|
|
||||||
typedef struct {
|
|
||||||
__IO uint32_t EPnR[STM32ENDPOINTS];
|
|
||||||
__IO uint32_t RESERVED[STM32ENDPOINTS];
|
|
||||||
__IO uint32_t CNTR;
|
|
||||||
__IO uint32_t ISTR;
|
|
||||||
__IO uint32_t FNR;
|
|
||||||
__IO uint32_t DADDR;
|
|
||||||
__IO uint32_t BTABLE;
|
|
||||||
} USB_TypeDef;
|
|
||||||
|
|
||||||
// F303 D/E have 2x16 access scheme
|
|
||||||
typedef struct{
|
|
||||||
#if defined USB2_16
|
|
||||||
__IO uint16_t USB_ADDR_TX;
|
|
||||||
__IO uint16_t USB_COUNT_TX;
|
|
||||||
__IO uint16_t USB_ADDR_RX;
|
|
||||||
__IO uint16_t USB_COUNT_RX;
|
|
||||||
#define ACCESSZ (1)
|
|
||||||
#define BUFTYPE uint8_t
|
|
||||||
#elif defined USB1_16
|
|
||||||
__IO uint32_t USB_ADDR_TX;
|
|
||||||
__IO uint32_t USB_COUNT_TX;
|
|
||||||
__IO uint32_t USB_ADDR_RX;
|
|
||||||
__IO uint32_t USB_COUNT_RX;
|
|
||||||
#define ACCESSZ (2)
|
|
||||||
#define BUFTYPE uint16_t
|
|
||||||
#else
|
|
||||||
#error "Define USB1_16 or USB2_16"
|
|
||||||
#endif
|
|
||||||
} USB_EPDATA_TypeDef;
|
|
||||||
|
|
||||||
|
|
||||||
typedef struct{
|
|
||||||
__IO USB_EPDATA_TypeDef EP[STM32ENDPOINTS];
|
|
||||||
} USB_BtableDef;
|
|
||||||
|
|
||||||
void USB_setup();
|
|
||||||
int EP_Init(uint8_t number, uint8_t type, uint16_t txsz, uint16_t rxsz, void (*func)());
|
|
||||||
@ -1,2 +0,0 @@
|
|||||||
#define BUILD_NUMBER "0"
|
|
||||||
#define BUILD_DATE "2023-04-17"
|
|
||||||
Loading…
x
Reference in New Issue
Block a user