STM32F103C8T6接收传感器数据用串口显示
时间: 2023-12-12 21:04:45 浏览: 14
以下是一个示例代码,使用STM32F103C8T6的USART1串口接收传感器数据,并将其显示在串口终端上。在这个示例中,我们假设传感器数据是以ASCII码形式发送的。
首先,我们需要初始化USART1串口:
```
#include "stm32f10x.h"
void USART1_Init(void)
{
// Enable USART1 clock
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
// Configure USART1 pins
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_9; // TX
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_10; // RX
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStruct);
// Configure USART1
USART_InitTypeDef USART_InitStruct;
USART_InitStruct.USART_BaudRate = 9600;
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_Rx | USART_Mode_Tx;
USART_Init(USART1, &USART_InitStruct);
// Enable USART1
USART_Cmd(USART1, ENABLE);
}
```
接下来,我们需要编写一个函数来接收传感器数据:
```
char buffer[50]; // Buffer to store received data
void ReceiveSensorData(void)
{
uint8_t i = 0;
char c;
// Wait for data to be received
while (USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET);
// Read data from USART1
c = USART_ReceiveData(USART1);
// Store data in buffer
while (c != '\n') // Assume data is terminated with newline character
{
buffer[i++] = c;
// Wait for next data to be received
while (USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET);
// Read data from USART1
c = USART_ReceiveData(USART1);
}
// Null-terminate buffer
buffer[i] = '\0';
// Print received data to USART1
USART_SendString(USART1, buffer);
}
```
最后,我们可以在主函数中调用`USART1_Init()`函数来初始化USART1串口,并在需要接收传感器数据时调用`ReceiveSensorData()`函数。
```
int main(void)
{
USART1_Init();
while (1)
{
ReceiveSensorData();
}
}
```
这样,当传感器发送数据时,它将被接收并显示在串口终端上。请注意,这只是一个示例代码,并且需要根据您的具体应用程序进行修改。