eddy/stm32samples
1
0
Fork 0
mirror of https://github.com/eddyem/stm32samples.git synced 2026-02-28 11:54:30 +03:00
Code Issues Packages Projects Releases Wiki Activity

fix some bugs

Browse Source
This commit is contained in:
Edward Emelianov
2024-01-08 00:18:44 +03:00
parent 98b61c7e9a
commit 24a270a932
16 changed files with 265 additions and 96 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
F3:F303/CANbus4BTA/hardware.c
View File

@@ -19,13 +19,41 @@
#include "adc.h"
#include "hardware.h"
#include "usart.h"
#include "usbhw.h"
#ifndef EBUG
TRUE_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) */
}
#endif
static inline void gpio_setup(){
RCC->AHBENR |= RCC_AHBENR_GPIOAEN | RCC_AHBENR_GPIOBEN | RCC_AHBENR_GPIOCEN;
// PWM - AF1 @PA7; USB - alternate function 14 @ pins PA11/PA12; USART1 = AF7 @PA9/10; SWD - AF0 @PA13/14
GPIOA->AFR[0] = AFRf(1, 7);
GPIOA->AFR[1] = AFRf(7, 9) | AFRf(7, 10) | AFRf(14, 11) | AFRf(14, 12);
// USART1: PA10(Rx), PA9(Tx); USB - PA11, PA12; SWDIO - PA13, PA14;
// PA4 - din (PU in), USART1: PA10(Rx, pullup), PA9(Tx); USB - PA11, PA12; SWDIO - PA13, PA14; PA8 & PA15 - PU in
GPIOA->PUPDR = (GPIOA->PUPDR & PUPD_CLR(4) & PUPD_CLR(8) & PUPD_CLR(10) & PUPD_CLR(15)) |
PUPD_PU(4) | PUPD_PU(8) | PUPD_PU(10) | PUPD_PU(15);
GPIOA->MODER = MODER_AI(0) | MODER_AI(1) | MODER_AI(2) | MODER_AI(3) | MODER_I(4) | MODER_O(5) |
MODER_O(6) | MODER_AF(7) | MODER_I(8) | MODER_AF(9) | MODER_AF(10) | MODER_AF(11) |
MODER_AF(12) | MODER_AF(13) | MODER_AF(14) | MODER_I(15);
@@ -33,6 +61,8 @@ static inline void gpio_setup(){
// SPI for SSI: AF5 @PB3, PB4; I2C1: AF4 @PB6, PB7; CAN: AF9 @PB8, PB9; SPI2: AF5 @PB12..PB15
GPIOB->AFR[0] = AFRf(5, 3) | AFRf(5, 4) | AFRf(4, 6) | AFRf(4, 7);
GPIOB->AFR[1] = AFRf(9, 8) | AFRf(9, 9) | AFRf(5, 12) | AFRf(5, 13) | AFRf(5, 14) | AFRf(5, 15);
// PB10,11 - PU in
GPIOB->PUPDR = PUPD_PU(10) | PUPD_PU(11);
GPIOB->MODER = MODER_O(0) | MODER_O(1) | MODER_O(2) | MODER_AF(3) | MODER_AF(4) | MODER_AF(6) | MODER_AF(7) |
MODER_AF(8) | MODER_AF(9) | MODER_I(10) | MODER_I(11) | MODER_AF(12) | MODER_AF(13) |
MODER_AF(14) | MODER_AF(15);
@@ -44,5 +74,10 @@ static inline void gpio_setup(){
void hw_setup(){
gpio_setup();
adc_setup();
//usart_setup(); - power it on only for encoders on RS-422
USB_setup();
#ifndef EBUG
iwdg_setup();
#endif
}