在使用Readfile()读取串行端口时需要帮助 [英] need help on reading serial port using Readfile()

问题描述

我正尝试使用Windows API读取串行端口数据，但不知何故我无法正确读取串行端口..有人可以请帮忙.谢谢

这是我读取串口的代码

i was trying to read a serial port data by using windows api but somehow i could not able to read the serial port properly.. would anyone kindly please help. thanks

this is my code for the reading of the serial port

//***************Read Operation******************//
buffRead = 0;
dwBytesRead = 0;
int nread =20;

if (!ReadFile(hSerial, buffRead, nread, &dwBytesRead, NULL))
{
printf("error reading from input buffer \n");
}
printf("Data read from read buffer is \n %s \n",buffRead);

谢谢

kevin

thanks

kevin

推荐答案

一个非常明显的错误是您将NULL 作为您的 lpBuffer 参数传递.

One very obvious error there is that you are passing NULL as your lpBuffer argument.

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