opencv+串口通讯

/*"Serial_Vs.h"*/ #include<iostream> #include<TCHAR.H> #include<windows.h> #include<string.h> /*#include "opencv2/objdetect.hpp" #include "opencv2/videoio.hpp" #include "opencv2/highgui.hpp" #include "opencv2/imgproc.hpp" #include "opencv2/video/tracking.hpp" #include "opencv2/imgproc/imgproc.hpp" #include "opencv2/highgui/highgui.hpp" #include <stdio.h>*/ using namespace std; //using namespace cv; HANDLE Serial_open(LPCWSTR, int); //串口开启函数 int Serial_read(HANDLE, void*, int); //串口读 int Serial_write(HANDLE, const void*, int); //串口写 void Serial_close(HANDLE);//串口关 void clear_buf(unsigned char*, int); //清空字符串数组 /** open serial @param COMx: eg:_T("COM1") @param BaudRate: return 0 success ,return Negative is haed err */ HANDLE Serial_open(LPCWSTR COMx, int BaudRate) { HANDLE hCom;//串口设备句柄 DCB dcb = { 0 }; hCom = CreateFile(COMx, GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, 0,//FILE_FLAG_OVERLAPPED, //同步方式 或 重叠方式 0 ); if (hCom == INVALID_HANDLE_VALUE) { DWORD dwError = GetLastError(); printf("Sorry, failed to open the serial\n"); //return -1; printf("The program will terminate in 3 seconds\n"); Sleep(3000); exit(0); } else printf("The serial is successfully opened in a Baudrate %d!\n", BaudRate); dcb.DCBlength = sizeof(DCB); if (!GetCommState(hCom, &dcb)) { DWORD dwError = GetLastError(); return(HANDLE)(-1); } dcb.BaudRate = BaudRate; //波特率 dcb.ByteSize = 8; //位数 dcb.Parity = NOPARITY; //奇偶检验 dcb.StopBits = ONESTOPBIT; //停止位数 if (!SetCommState(hCom, &dcb)) { DWORD dwError = GetLastError(); return(HANDLE)(-1); } if (!PurgeComm(hCom, PURGE_RXCLEAR)) return(HANDLE)(-1); SetupComm(hCom, 1024, 1024); return hCom; } /** serial read @param Buf:data buf @param size: @return The len of read */ int Serial_read(HANDLE hCom, void* OutBuf, int size) { DWORD cnt = 0; ReadFile(hCom, OutBuf, size, &cnt, 0); return cnt; } /** serial write @param Buf:data buf @param size:bytes of Buf @return The len of writen */ int Serial_write(HANDLE hCom, const void*Buf, int size) { DWORD dw; WriteFile(hCom, Buf, size, &dw, NULL); return dw; } /** serial close */ void Serial_close(HANDLE hCom) { CloseHandle(hCom); } /** clear buf */ void clear_buf(unsigned char*buf, int N) { int i; for (i = 0; i <N; i++)buf[i] = 0; buf[i] = '\0'; } /*main.cpp*/ HANDLE hCom; int main() { //--open serial port as a default baudrate 9600 hCom = Serial_open(_T("COM1"), 9600); //修改串口号"COMx" int len=0; int i = 0; while (1) { //len = Serial_read(hCom,&data, 1); char data = '0'; //char datastrX[4] = ""; //char datastrY[4] = ""; char bufferX[4] = ""; char bufferY[4] = ""; int x, y; Serial_read(hCom, &data, 1); switch (data) { case 'X': for (int i = 0; i <5; i++) { Serial_read(hCom, &data, 1); //读取串口设备数据1个字节，放到data中 if (data == 'R') break; bufferX[i] = data; data = '0'; } //write(hCom,&bufferX,4); //写入串口设备 char * sx; //strncpy_s(datastrX, bufferX, 4); x = strtol(bufferX, &sx, 10);//X轴坐标的int形式 memset(bufferX, 0, sizeof(bufferX) / sizeof(char));//清空字符串数组 break; case 'Y': for (int i = 0; i <5; i++) { Serial_read(hCom, &data, 1); //读取串口设备数据1个字节，放到data中 if (data == 'R') break; bufferY[i] = data; data = '0'; } char * sy; //strncpy_s(datastrY, bufferY, 4); y = strtol(bufferY, &sy, 10);//Y轴坐标的int形式 memset(bufferY, 0, sizeof(bufferY) / sizeof(char)); break; default: break; } PurgeComm(hCom, PURGE_RXABORT);//清空缓存 printf("标识中心坐标为 \t%d , \t%d\n", x, y); // int c = waitKey(10); int c=getchar(); if ((char)c == 27) { break; } // escape } PurgeComm(hCom, PURGE_RXCLEAR); //--Close and reopen the port Serial_close(hCom); return 0; }