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This commit is contained in:
Edward Emelianov 2023-09-21 18:17:16 +03:00
parent a8296717e1
commit c2976d8ba1
31 changed files with 2475 additions and 0 deletions
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9
F1:F103/shutter/code/Makefile Normal file
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BINARY := shutter
# MCU code
MCU ?= F103x6
# change this linking script depending on particular MCU model,
LDSCRIPT ?= stm32f103x6.ld
DEFINES := -DUSB1_16 -DSTM32F10X_LD
include ../makefile.f1
include ../../makefile.stm32

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F1:F103/shutter/code/Readme.md Normal file
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Shutter control
===============
Works with bi-stable shutter.
Pinout:
PB0 (pullup in) - hall (or reed switch) sensor input (active low) - opened shutter detector
PB11 (pullup in) - CCD or button input: open at low signal, close at high
PA3 (ADC in) - shutter voltage (approx 1/12 U)
PA5 (PP out) - TLE5205 IN2
PA6 (PP out) - TLE5205 IN1
PA7 (pullup in) - TLE5205 FB
PA10 (PP out) - USB pullup (active low)
PA11,12 - USB
PA13,14 - SWD
Commands:

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F1:F103/shutter/code/adc.c Normal file
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/*
* This file is part of the shutter 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 "adc.h"
#ifdef EBUG
#include "usb.h"
#include "proto.h"
#endif
uint16_t ADC_array[NUMBER_OF_ADC_CHANNELS*9];
void adc_setup(){
uint32_t ctr = 0;
// Enable clocking
RCC->APB2ENR |= RCC_APB2ENR_ADC1EN;
RCC->AHBENR |= RCC_AHBENR_DMA1EN;
__DSB();
// DMA configuration
DMA1_Channel1->CPAR = (uint32_t) (&(ADC1->DR));
DMA1_Channel1->CMAR = (uint32_t)(ADC_array);
DMA1_Channel1->CNDTR = NUMBER_OF_ADC_CHANNELS * 9;
DMA1_Channel1->CCR = DMA_CCR_MINC | DMA_CCR_MSIZE_0 | DMA_CCR_PSIZE_0
| DMA_CCR_CIRC | DMA_CCR_PL | DMA_CCR_EN;
RCC->CFGR = (RCC->CFGR & ~(RCC_CFGR_ADCPRE)) | RCC_CFGR_ADCPRE_DIV8; // ADC clock = RCC / 8
// sampling time - 239.5 cycles for channels 3, 16 and 17
ADC1->SMPR2 = ADC_SMPR2_SMP3;
ADC1->SMPR1 = ADC_SMPR1_SMP16 | ADC_SMPR1_SMP17;
// sequence order: 3 -> 16 -> 17
ADC1->SQR3 = (3 << 0) | (16<<5) | (17 << 10);
ADC1->SQR1 = (NUMBER_OF_ADC_CHANNELS - 1) << 20; // amount of conversions
ADC1->CR1 = ADC_CR1_SCAN; // scan mode
// continuous mode & DMA; enable vref & Tsens; wake up ADC
ADC1->CR2 = ADC_CR2_DMA | ADC_CR2_TSVREFE | ADC_CR2_CONT | ADC_CR2_ADON;
// wait for Tstab - at least 1us
while(++ctr < 0xff) nop();
// calibration
ADC1->CR2 |= ADC_CR2_RSTCAL;
ctr = 0; while((ADC1->CR2 & ADC_CR2_RSTCAL) && ++ctr < 0xfffff);
ADC1->CR2 |= ADC_CR2_CAL;
ctr = 0; while((ADC1->CR2 & ADC_CR2_CAL) && ++ctr < 0xfffff);
// turn ON ADC
//ADC1->CR2 |= ADC_CR2_ADON;
__DSB();
ADC1->SR = 0;
ADC1->CR2 |= ADC_CR2_SWSTART;
}
/**
* @brief getADCval - calculate median value for `nch` channel
* @param nch - number of channel
* @return
*/
uint16_t getADCval(int nch){
int i, addr = nch;
register uint16_t temp;
#define PIX_SORT(a,b) { if ((a)>(b)) PIX_SWAP((a),(b)); }
#define PIX_SWAP(a,b) { temp=(a);(a)=(b);(b)=temp; }
uint16_t p[9];
for(i = 0; i < 9; ++i, addr += NUMBER_OF_ADC_CHANNELS){ // first we should prepare array for optmed
p[i] = ADC_array[addr];
/*
#ifdef EBUG
USB_sendstr("ADC"); USB_putbyte('0'+i);
USB_putbyte('='); USB_sendstr(u2str(p[i]));
newline();
#endif
*/
}
PIX_SORT(p[1], p[2]) ; PIX_SORT(p[4], p[5]) ; PIX_SORT(p[7], p[8]) ;
PIX_SORT(p[0], p[1]) ; PIX_SORT(p[3], p[4]) ; PIX_SORT(p[6], p[7]) ;
PIX_SORT(p[1], p[2]) ; PIX_SORT(p[4], p[5]) ; PIX_SORT(p[7], p[8]) ;
PIX_SORT(p[0], p[3]) ; PIX_SORT(p[5], p[8]) ; PIX_SORT(p[4], p[7]) ;
PIX_SORT(p[3], p[6]) ; PIX_SORT(p[1], p[4]) ; PIX_SORT(p[2], p[5]) ;
PIX_SORT(p[4], p[7]) ; PIX_SORT(p[4], p[2]) ; PIX_SORT(p[6], p[4]) ;
PIX_SORT(p[4], p[2]) ;
return p[4];
#undef PIX_SORT
#undef PIX_SWAP
}
// get voltage @input nch (1/100V)
uint32_t getADCvoltage(int nch){
uint32_t v = getADCval(nch);
v *= getVdd();
v /= 0xfff; // 12bit ADC
return v;
}
// return MCU temperature (degrees of celsius * 10)
int32_t getMCUtemp(){
// Temp = (V25 - Vsense)/Avg_Slope + 25
// V_25 = 1.45V, Slope = 4.3e-3
int32_t Vsense = getVdd() * getADCval(CHTSENS);
int32_t temperature = 593920 - Vsense; // 593920 == 145*4096
temperature /= 172; // == /(4096*10*4.3e-3), 10 - to convert from *100 to *10
temperature += 250;
return(temperature);
}
// return Vdd * 100 (V)
uint32_t getVdd(){
uint32_t vdd = 120 * 4096; // 1.2V
vdd /= getADCval(CHVREF);
return vdd;
}

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F1:F103/shutter/code/adc.h Normal file
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/*
* This file is part of the shutter 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 <stm32f1.h>
#define NUMBER_OF_ADC_CHANNELS (3)
// shutter voltage channel
#define CHSHTR (0)
// channels for Tsens and Vref
#define CHTSENS (1)
#define CHVREF (2)
/**
* @brief ADC_array - array for ADC channels with median filtering:
* 0 - U shutter
* 1 - internal Tsens
* 2 - Vref
*/
extern uint16_t ADC_array[];
void adc_setup();
int32_t getMCUtemp();
uint32_t getVdd();
uint16_t getADCval(int nch);
uint32_t getADCvoltage(int nch);

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F1:F103/shutter/code/hardware.c Normal file
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/*
* This file is part of the shutter 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 "adc.h"
#include "hardware.h"
static inline void iwdg_setup(){
uint32_t tmout = 16000000;
/* Enable the peripheral clock RTC */
/* (1) Enable the LSI (40kHz) */
/* (2) Wait while it is not ready */
RCC->CSR |= RCC_CSR_LSION; /* (1) */
while((RCC->CSR & RCC_CSR_LSIRDY) != RCC_CSR_LSIRDY){if(--tmout == 0) break;} /* (2) */
/* Configure IWDG */
/* (1) Activate IWDG (not needed if done in option bytes) */
/* (2) Enable write access to IWDG registers */
/* (3) Set prescaler by 64 (1.6ms for each tick) */
/* (4) Set reload value to have a rollover each 2s */
/* (5) Check if flags are reset */
/* (6) Refresh counter */
IWDG->KR = IWDG_START; /* (1) */
IWDG->KR = IWDG_WRITE_ACCESS; /* (2) */
IWDG->PR = IWDG_PR_PR_1; /* (3) */
IWDG->RLR = 1250; /* (4) */
tmout = 16000000;
while(IWDG->SR){if(--tmout == 0) break;} /* (5) */
IWDG->KR = IWDG_REFRESH; /* (6) */
}
/*
Pinout:
PB0 (pullup in) - hall (or reed switch) sensor input (active low) - opened shutter detector
PB11 (pullup in) - CCD or button input: open at low signal, close at high
PA3 (ADC in) - shutter voltage (approx 1/12 U)
PA5 (PP out) - TLE5205 IN2
PA6 (PP out) - TLE5205 IN1
PA7 (pullup in) - TLE5205 FB
PA10 (PP out) - USB pullup (active low)
PA11,12 - USB
PA13,14 - SWD
*/
static inline void gpio_setup(){
// Enable clocks to the GPIO subsystems, turn on AFIO clocking to disable SWD/JTAG
RCC->APB2ENR |= RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN | RCC_APB2ENR_AFIOEN;
__DSB();
// turn off SWJ/JTAG
// AFIO->MAPR = AFIO_MAPR_SWJ_CFG_DISABLE;
// AFIO->MAPR = AFIO_MAPR_SWJ_CFG_JTAGDISABLE; // for PA15
// TLE5205 in OFF state
// ADC (PA3), OD out (PA5,6), PU in (PA7)
GPIOA->ODR = 1 << 7;
SHTROFF();
GPIOA->CRL = CRL(3, CNF_ANALOG|MODE_INPUT) | CRL(5, CNF_PPOUTPUT|MODE_SLOW) | CRL(6, CNF_PPOUTPUT|MODE_SLOW) |
CRL(7, CNF_PUDINPUT | MODE_INPUT);
// USB pullup (PA10) - pushpull output
GPIOA->CRH = CRH(8, CNF_PPOUTPUT | MODE_SLOW) | CRH(10, CNF_PPOUTPUT | MODE_SLOW);
// hall/ccd
GPIOB->ODR = 1 | 1<<11;
GPIOB->CRL = CRL(0, CNF_PUDINPUT | MODE_INPUT);
GPIOB->CRH = CRH(11, CNF_PUDINPUT | MODE_INPUT);
}
void hw_setup(){
iwdg_setup();
gpio_setup();
adc_setup();
}

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F1:F103/shutter/code/hardware.h Normal file
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/*
* This file is part of the shutter 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
#include <stm32f1.h>
// PA7 - SHTR_FB
#define FBPORT GPIOA
#define FBPIN (1<<7)
// PA6, PA5 - SHTR_A, SHTR_B
#define SHTRPORT GPIOA
#define SHTRAPOS (6)
#define SHTRAPIN (1<<SHTRAPOS)
#define SHTRBPOS (5)
#define SHTRBPIN (1<<SHTRBPOS)
#define CHKFB() (FBPORT->IDR & FBPIN ? 0 : 1)
// open: 00
#define SHTROPEN() do{SHTRPORT->BSRR = (SHTRAPIN | SHTRBPIN) << 16;}while(0)
// close: 01
#define SHTRCLOSE() do{SHTRPORT->BSRR = (SHTRAPIN << 16) | SHTRBPIN;}while(0)
// off: 10
#define SHTROFF() do{SHTRPORT->BSRR = (SHTRBPIN << 16) | SHTRAPIN;}while(0)
// hiZ: 11
#define SHTRHIZ() do{SHTRPORT->BSRR = SHTRAPIN | SHTRBPIN;}while(0)
#define SHTRSTATE() (((SHTRPORT->IDR & SHTRAPIN) >> (SHTRAPOS-1)) | ((SHTRPORT->IDR & SHTRBPIN) >> SHTRBPOS))
// states of TLE5205
typedef enum{
REG_OPEN,
REG_CLOSE,
REG_OFF,
REG_HIZ
} regul_state;
// PB0 - hall (==1 when opened), PB11 - CCD (active low)
#define BTNPORT GPIOB
#define HALLPIN (1<<0)
#define CCDPIN (1<<11)
#define CHKHALL() (BTNPORT->IDR & HALLPIN ? 0 : 1)
#define CHKCCD() (BTNPORT->IDR & CCDPIN ? 0 : 1)
// multiplyer of shutter voltage (due to R divider)
#define SHTRVMUL (13)
// minimal voltage on capacitor for shutter can work
#define SHTR_WORK_VOLTAGE (1300)
// minimal voltage on capacitor due to discharging
#define SHTR_MIN_VOLTAGE (100)
extern volatile uint32_t Tms;
void hw_setup();

1
F1:F103/shutter/code/kicad Symbolic link
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/home/eddy/Docs/SAO/Zeiss-1000/Small_photometer/shutter/kicad/shutter

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F1:F103/shutter/code/main.c Normal file
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/*
* This file is part of the shutter 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 "hardware.h"
#include "proto.h"
#include "shutter.h"
#include "usb.h"
#define MAXSTRLEN RBINSZ
// eash ERRPERIOD ms show error message if SHTR_FB is low
#define ERRPERIOD 499
volatile uint32_t Tms = 0;
void sys_tick_handler(void){
++Tms;
}
int main(void){
char inbuff[MAXSTRLEN+1];
StartHSE();
hw_setup();
SysTick_Config(72000);
USBPU_OFF();
hw_setup();
USB_setup();
USBPU_ON();
close_shutter();
uint32_t Terr = Tms + 2*ERRPERIOD;
while(1){
IWDG->KR = IWDG_REFRESH; // refresh watchdog
if(shutterstate == SHUTTER_ERROR && Tms - Terr > ERRPERIOD){
USB_sendstr("shutter=error\n");
Terr = Tms;
}
int l = USB_receivestr(inbuff, MAXSTRLEN);
if(l < 0) USB_sendstr("usb=error\n");
else if(l){
const char *ans = parse_cmd(inbuff);
if(ans) USB_sendstr(ans);
}
process_shutter();
}
}

4
F1:F103/shutter/code/openocd.cfg Normal file
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set FLASH_SIZE 0x20000
source [find interface/stlink-v2-1.cfg]
source [find target/stm32f1x.cfg]

323
F1:F103/shutter/code/proto.c Normal file
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/*
* This file is part of the shutter 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 "adc.h"
#include "hardware.h"
#include "proto.h"
#include "shutter.h"
#include "usb.h"
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 =
"'0' - shutter CLO\n"
"'1' - shutter OPE\n"
"'2' - shutter HIZ\n"
"'A' - get raw ADC values\n"
"'C' - close shutter\n"
//"'N' - read number (dec, 0xhex, 0oct, bbin) and show it in decimal\n"
"'O' - open shutter\n"
"'R' - software reset\n"
"'S' - get shutter state; also hall and ccd inputs state (1 - active)\n"
"'t' - get MCU temperature (/10degC)\n"
"'T' - get Tms\n"
"'v' - get Vdd (/100V)\n"
"'V' - get shutter voltage (/100V)\n"
"'W' - test watchdog\n"
;
static char stbuf[256], *bptr = NULL;
static int blen = 0;
static void initbuf(){bptr = stbuf; blen = 255; *bptr = 0;}
void add2buf(const char *s){
while(blen && *s){
*bptr++ = *s++;
--blen;
}
*bptr = 0;
}
void bufputchar(char c){
if(blen == 0) return;
*bptr++ = c;
--blen;
*bptr = 0;
}
extern uint8_t usbON;
const char *parse_cmd(const char *buf){
uint32_t u3;
initbuf();
if(buf[1] == '\n' || buf[1] == '\r' || !buf[1]){ // one symbol commands
switch(*buf){
case '0':
SHTRCLOSE();
add2buf("regstate=close");
break;
case '1':
SHTROPEN();
add2buf("regstate=open");
break;
case '2':
SHTRHIZ();
add2buf("regstate=hiz");
break;
case 'A':
for(int i = 0; i < NUMBER_OF_ADC_CHANNELS; ++i){
add2buf("\nadc");
bufputchar('0' + i);
bufputchar('=');
add2buf(u2str(getADCval(i)));
}
break;
case 'C':
if(close_shutter()) add2buf("OK");
else add2buf("ERR");
break;
case 'O':
if(open_shutter()) add2buf("OK");
else add2buf("ERR");
break;
case 'R':
USB_sendstr("Soft reset\n");
USB_sendall();
NVIC_SystemReset();
break;
case 'S':
print_shutter_state();
add2buf("hall=");
bufputchar('0' + CHKHALL());
add2buf("\nccd=");
bufputchar('0' + CHKCCD());
break;
break;
case 't':
add2buf("mcut=");
add2buf(u2str(getMCUtemp()));
break;
case 'T':
add2buf("tms=");
add2buf(u2str(Tms));
break;
case 'v':
add2buf("vdd=");
add2buf(u2str(getVdd()));
break;
case 'V':
u3 = getADCvoltage(CHSHTR) * SHTRVMUL;
add2buf("voltage=");
add2buf(u2str(u3));
break;
case 'W':
USB_sendstr("Wait for reboot\n");
USB_sendall();
while(1){nop();};
break;
default:
return helpmsg;
}
bufputchar('\n');
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;
}

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/*
* This file is part of the shutter 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 <stm32f1.h>
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);
void add2buf(const char *s);
void bufputchar(char c);
#endif // PROTO_H__

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/*
* This file is part of the shutter 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 "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;
}

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/*
* This file is part of the shutter 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 <stm32f1.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);

BIN
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/*
* This file is part of the shutter 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 "adc.h"
#include "hardware.h"
#include "proto.h"
#include "shutter.h"
#include "usb.h"
static const char *states[SHUTTER_STATE_AMOUNT] = {
[SHUTTER_ERROR] = "error",
[SHUTTER_RELAX] = "relax",
[SHUTTER_PROCESS] = "process",
[SHUTTER_WAIT] = "wait",
};
static const char *opcl[2] = {"closed", "opened"};
shutter_state shutterstate = SHUTTER_ERROR;
static uint32_t Tstart = 0;
static int changestate(int open){
if(open == CHKHALL()) return TRUE; // already opened or closed
if(getADCvoltage(CHSHTR) < SHTR_WORK_VOLTAGE / SHTRVMUL) return FALSE;
if(shutterstate == SHUTTER_ERROR) return FALSE;
if(open) SHTROPEN();
else SHTRCLOSE();
shutterstate = SHUTTER_PROCESS;
Tstart = Tms;
return TRUE;
}
/**
* @brief open_shutter, close shutter - change shutter state
* @return false if can't work due to error (no shutter) or insufficient voltage
*/
int open_shutter(){
return changestate(1);
}
int close_shutter(){
return changestate(0);
}
void process_shutter(){
#ifdef EBUG
static uint32_t T = 0;
#endif
uint32_t V = getADCvoltage(CHSHTR)*SHTRVMUL;
switch(shutterstate){
case SHUTTER_ERROR:
SHTROFF();
shutterstate = SHUTTER_WAIT;
Tstart = Tms;
break;
case SHUTTER_PROCESS:
#ifdef EBUG
if(T != Tms){
T = Tms;
USB_sendstr(u2str(V));
USB_putbyte('\n');
}
#endif
if(Tms - Tstart > SHUTTER_TIME || V < SHTR_MIN_VOLTAGE){
SHTROFF();
shutterstate = SHUTTER_WAIT;
Tstart = Tms;
}
break;
case SHUTTER_WAIT:
if(Tms - Tstart > WAITING_TIME){
SHTRHIZ();
shutterstate = SHUTTER_RELAX;
USB_sendstr("shutter=");
USB_sendstr(opcl[CHKHALL()]);
USB_putbyte('\n');
}
break;
default:
if(CHKFB()) shutterstate = SHUTTER_ERROR;
break;
}
static uint8_t oldbtnstate = 0;
uint8_t s = CHKCCD();
if(oldbtnstate == s) return; // button's state not changed
// check button only when can open/close & shutter operations done
if(V >= SHTR_WORK_VOLTAGE && shutterstate == SHUTTER_RELAX){ // shutter state allows to open/close
if(s){ // pressed
if(!CHKHALL()){ if(open_shutter()){oldbtnstate = s; USB_sendstr(" open, old->1\n");}}
else{USB_sendstr("pressed when CHKHALL(), old->1\n"); oldbtnstate = s;}
}else{ // released
if(CHKHALL()){ if(close_shutter()){oldbtnstate = s; USB_sendstr(" close, old->0\n");}}
else{USB_sendstr("released when !CHKHALL(), old->0\n"); oldbtnstate = s;}
}
}
}
void print_shutter_state(){
add2buf("shutter=");
if(shutterstate != SHUTTER_RELAX) add2buf(states[shutterstate]);
else add2buf(opcl[CHKHALL()]);
add2buf("\nregstate=");
bufputchar('0' + SHTRSTATE());
add2buf("\nfbstate=");
bufputchar('0' + CHKFB());
bufputchar('\n');
}

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-std=c17

7
F1:F103/shutter/code/shutter.config Normal file
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// Add predefined macros for your project here. For example:
// #define THE_ANSWER 42
#define EBUG
#define USB1_16
#define STM32F1
#define STM32F103x8
#define STM32F10X_MD

1
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[General]

160
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-std=c++17

17
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adc.c
adc.h
hardware.c
hardware.h
main.c
proto.c
proto.h
ringbuffer.c
ringbuffer.h
shutter.c
shutter.h
usb.c
usb.h
usb_lib.c
usb_lib.h
usbhw.c
usbhw.h

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/*
* This file is part of the shutter 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
// opening/closing time (ms)
#define SHUTTER_TIME (20)
// waiting for getting status time (ms)
#define WAITING_TIME (60)
typedef enum{
SHUTTER_ERROR, // shutter is absent?
SHUTTER_RELAX, // powered off
SHUTTER_PROCESS, // opened or closed
SHUTTER_WAIT, // wait in off state before turn to hi-z
SHUTTER_STATE_AMOUNT
} shutter_state;
extern shutter_state shutterstate;
void process_shutter();
int open_shutter();
int close_shutter();
void print_shutter_state();

6
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.
../inc
../inc/Fx
../inc/cm
../inc/ld
../inc/startup

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/*
* This file is part of the shutter 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;
}

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/*
* This file is part of the shutter 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);

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/*
* This file is part of the shutter 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"shutter_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;
}

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/*
* This file is part of the shutter 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);

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/*
* This file is part of the shutter 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 "usb.h"
#include "usbhw.h"
#include "usb_lib.h"
void USB_setup(){
NVIC_DisableIRQ(USB_LP_CAN1_RX0_IRQn);
NVIC_DisableIRQ(USB_HP_CAN1_TX_IRQn);
USBPU_OFF();
RCC->APB1ENR |= RCC_APB1ENR_USBEN;
RCC->APB2ENR |= USB_RCC;
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_CAN1_RX0_IRQn);
USBPU_ON();
}
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_can_rx0_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;
}
}

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/*
* This file is part of the shutter 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
#include <stm32f1.h>
#define USB_RCC RCC_APB2ENR_IOPAEN
#define USBPU_port GPIOA
#define USBPU_pin (1<<10)
#define USBPU_ON() pin_clear(USBPU_port, USBPU_pin)
#define USBPU_OFF() pin_set(USBPU_port, USBPU_pin)
// max endpoints number
#define STM32ENDPOINTS 8
/**
* Buffers size definition
**/
#define USB_BTABLE_SIZE 512
// 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_BASE ((uint32_t)0x40005C00)
#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;
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)());

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#define BUILD_NUMBER "70"
#define BUILD_DATE "2023-09-21"