c语言编写实现rs232串口通信的代码windows平台,接收数据时显示发送时间以及接受时间
时间: 2023-05-23 12:02:36 浏览: 304
以下是一个简单的C语言程序,用于在Windows平台上实现RS232串口通信,并显示发送时间和接收时间:
```c
#include <stdio.h>
#include <windows.h>
int main()
{
HANDLE hComm;
DCB dcb;
COMMTIMEOUTS timeouts;
char portName[] = "COM1";
DWORD baudRate = CBR_9600;
char buffer[256];
DWORD bytesRead;
FILETIME sendTime, receiveTime;
SYSTEMTIME stSend, stReceive;
// 打开串口
hComm = CreateFile(portName, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
// 配置串口
dcb.DCBlength = sizeof(DCB);
GetCommState(hComm, &dcb);
dcb.BaudRate = baudRate;
dcb.ByteSize = 8;
dcb.StopBits = ONESTOPBIT;
dcb.Parity = NOPARITY;
SetCommState(hComm, &dcb);
// 配置超时
timeouts.ReadIntervalTimeout = MAXDWORD;
timeouts.ReadTotalTimeoutMultiplier = 0;
timeouts.ReadTotalTimeoutConstant = 100;
timeouts.WriteTotalTimeoutMultiplier = 10;
timeouts.WriteTotalTimeoutConstant = 100;
SetCommTimeouts(hComm, &timeouts);
// 读取串口数据
while (1) {
memset(buffer, 0, sizeof(buffer));
ReadFile(hComm, buffer, sizeof(buffer), &bytesRead, NULL);
if (bytesRead > 0) {
GetSystemTimeAsFileTime(&receiveTime);
FileTimeToLocalFileTime(&receiveTime, &receiveTime);
FileTimeToSystemTime(&receiveTime, &stReceive);
printf("Received time: %d-%02d-%02d %02d:%02d:%02d.%03d\n", stReceive.wYear, stReceive.wMonth, stReceive.wDay, stReceive.wHour, stReceive.wMinute, stReceive.wSecond, stReceive.wMilliseconds);
printf("Received data: %s\n", buffer);
}
}
return 0;
}
```
注意:这只是一个简单的示例程序,实际应用中需要加入错误处理和异常情况处理等代码。