reflow-oven-control-sw/stm-firmware/updater/ram-code/uart.c

#include "uart.h"
#include <reflow-controller/periph-config/shell-uart-config.h>
#include <stm32/stm32f4xx.h>
#include <string.h>

void uart_init(void)
{
	SHELL_UART_RCC_REG |= SHELL_UART_RCC_MASK;
	SHELL_UART_PERIPH->BRR = SHELL_UART_DEFAULT_BRR_REG_VALUE;
	SHELL_UART_PERIPH->CR2 = 0;
	SHELL_UART_PERIPH->CR3 = 0;
	SHELL_UART_PERIPH->CR1 = USART_CR1_TE | USART_CR1_UE;
}

void uart_send_char(char c)
{
	while (!(SHELL_UART_PERIPH->SR & USART_SR_TXE));
	SHELL_UART_PERIPH->DR = c;
}

void uart_send_string(const char *str)
{
	int len, i;

	len = strlen(str);
	for (i = 0; i < len; i++) {
		uart_send_char(str[i]);
	}
}