c++怎么调用Windows串口函数持续读取16个数据并转为16进制存放在数组中
时间: 2023-12-17 12:05:46 浏览: 112
可以使用Windows API中提供的串口函数来持续读取16位数据,并使用C++中的数组保存数据的16进制表示。
以下是一个示例代码:
```c++
#include <Windows.h>
#include <cstdio>
#include <iomanip>
int main() {
HANDLE hSerial = CreateFile("COM1", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hSerial == INVALID_HANDLE_VALUE) {
printf("Failed to open serial port!\n");
return 1;
}
DCB dcbSerialParams = { 0 };
dcbSerialParams.DCBlength = sizeof(dcbSerialParams);
if (!GetCommState(hSerial, &dcbSerialParams)) {
printf("Failed to get serial port parameters!\n");
CloseHandle(hSerial);
return 1;
}
dcbSerialParams.BaudRate = CBR_115200;
dcbSerialParams.ByteSize = 8;
dcbSerialParams.StopBits = ONESTOPBIT;
dcbSerialParams.Parity = NOPARITY;
if (!SetCommState(hSerial, &dcbSerialParams)) {
printf("Failed to set serial port parameters!\n");
CloseHandle(hSerial);
return 1;
}
const int n = 16;
unsigned short data[n];
char buf[2];
DWORD bytesRead;
for (int i = 0; i < n; i++) {
if (!ReadFile(hSerial, buf, sizeof(buf), &bytesRead, NULL)) {
printf("Failed to read from serial port!\n");
CloseHandle(hSerial);
return 1;
}
data[i] = ((unsigned char)buf[1] << 8) | (unsigned char)buf[0];
}
for (int i = 0; i < n; i++) {
printf("Data[%d]: 0x%04X\n", i, data[i]);
}
CloseHandle(hSerial);
return 0;
}
```
这个程序会打开COM1串口,并持续读取16个16位数据,将它们组合成16个16位整数,并使用printf函数将它们转换为16进制字符串并输出。你可以根据自己的需要修改串口参数和读取数据的方式。如果读取失败,程序会输出一条错误消息并退出。
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