eddy/stm32samples
1
0
Fork 0
mirror of https://github.com/eddyem/stm32samples.git synced 2026-02-28 03:44:30 +03:00
Code Issues Packages Projects Releases Wiki Activity

start adding U[S]ART support (need DMA)

Browse Source
This commit is contained in:
Edward Emelianov
2026-02-14 00:57:13 +03:00
parent 148c25b555
commit 26e74a6b89
9 changed files with 324 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
F3:F303/InterfaceBoard/hardware.c
View File

@@ -21,7 +21,10 @@
uint8_t Config_mode = 0;
static inline void gpio_setup(){
RCC->AHBENR |= RCC_AHBENR_GPIOAEN | RCC_AHBENR_GPIOBEN; // for USART and LEDs
RCC->AHBENR |= RCC_AHBENR_GPIOAEN | RCC_AHBENR_GPIOBEN | RCC_AHBENR_DMA1EN | RCC_AHBENR_DMA2EN;
RCC->APB1ENR |= RCC_APB1ENR_CANEN | RCC_APB1ENR_USART2EN | RCC_APB1ENR_USART3EN
| RCC_APB1ENR_UART4EN | RCC_APB1ENR_UART5EN;
RCC->APB2ENR |= RCC_APB2ENR_USART1EN;
for(int i = 0; i < 10000; ++i) nop();
// USB - alternate function 14 @ pins PA11/PA12; SWD - AF0 @PA13/14
GPIOA->AFR[1] = AFRf(14, 11) | AFRf(14, 12);