30 lines
620 B
C
30 lines
620 B
C
#include "uart.h"
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#include <reflow-controller/periph-config/shell-uart-config.h>
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#include <stm32/stm32f4xx.h>
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#include <string.h>
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void uart_init(void)
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{
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SHELL_UART_RCC_REG |= SHELL_UART_RCC_MASK;
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SHELL_UART_PERIPH->BRR = SHELL_UART_DEFAULT_BRR_REG_VALUE;
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SHELL_UART_PERIPH->CR2 = 0;
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SHELL_UART_PERIPH->CR3 = 0;
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SHELL_UART_PERIPH->CR1 = USART_CR1_TE | USART_CR1_UE;
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}
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void uart_send_char(char c)
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{
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while (!(SHELL_UART_PERIPH->SR & USART_SR_TXE));
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SHELL_UART_PERIPH->DR = c;
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}
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void uart_send_string(const char *str)
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{
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int len, i;
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len = strlen(str);
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for (i = 0; i < len; i++) {
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uart_send_char(str[i]);
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}
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}
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