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uart

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Imbus 2025-07-16 15:36:38 +02:00
parent 919203c467
commit f63b6c2462
1 changed files with 19 additions and 0 deletions
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#include <libopencm3/stm32/usart.h>
#include <libopencm3/stm32/rcc.h>
#include <libopencm3/stm32/gpio.h>
static void usart_setup(void) {
rcc_periph_clock_enable(RCC_GPIOA);
rcc_periph_clock_enable(RCC_USART1);
// Set PA9 (TX) to alternate function, push-pull
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX);
usart_set_baudrate(USART1, 115200);
usart_set_databits(USART1, 8);
usart_set_stopbits(USART1, USART_STOPBITS_1);
usart_set_mode(USART1, USART_MODE_TX);
usart_set_parity(USART1, USART_PARITY_NONE);
usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
usart_enable(USART1);
}