用标准库在stm32f407中利用串口1传输结构体数据
时间: 2023-04-05 14:02:43 浏览: 111
可以使用标准库中的串口发送函数,将结构体数据转换为字符数组,然后通过串口1发送出去。具体实现可以参考以下代码:
```c
#include <stdio.h>
#include <string.h>
#include "stm32f4xx.h"
typedef struct {
uint8_t id;
uint16_t value;
} DataStruct;
void USART1_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
USART_InitTypeDef USART_InitStruct;
NVIC_InitTypeDef NVIC_InitStruct;
// Enable clock for GPIOB and USART1
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
// Configure PB6 as USART1_TX
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOB, &GPIO_InitStruct);
// Connect PB6 to USART1_TX
GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_USART1);
// Configure USART1
USART_InitStruct.USART_BaudRate = 115200;
USART_InitStruct.USART_WordLength = USART_WordLength_8b;
USART_InitStruct.USART_StopBits = USART_StopBits_1;
USART_InitStruct.USART_Parity = USART_Parity_No;
USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStruct.USART_Mode = USART_Mode_Tx;
USART_Init(USART1, &USART_InitStruct);
// Enable USART1 interrupt
NVIC_InitStruct.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStruct);
// Enable USART1
USART_Cmd(USART1, ENABLE);
}
void USART1_SendChar(char ch)
{
while (USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
USART_SendData(USART1, ch);
}
void USART1_SendString(char* str)
{
while (*str) {
USART1_SendChar(*str++);
}
}
void USART1_SendStruct(DataStruct* data)
{
char buf[10];
sprintf(buf, "%d,%d\n", data->id, data->value);
USART1_SendString(buf);
}
int main(void)
{
USART1_Init();
DataStruct data = {1, 100};
USART1_SendStruct(&data);
while (1);
return 0;
}
```