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#include <fstream>
#include <string>
#include <iostream>
#include <sstream>
#include <Windows.h>
using namespace std;
int main(void)
{
COMMTIMEOUTS timeouts = { 0 };
HANDLE h = CreateFile("COM1", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
if (h == INVALID_HANDLE_VALUE)
{
cout << "Erreur: Impossible d´ouvrir le port série" << endl;
return 1;
}
DCB dcb = { 0 };
BOOL dcbOk = GetCommState(h, &dcb);
dcb.BaudRate = CBR_115200;
dcb.ByteSize = 8;
dcb.Parity = NOPARITY;
dcb.StopBits = TWOSTOPBITS;
dcbOk = SetCommState(h, &dcb);
timeouts.ReadIntervalTimeout = 100;
timeouts.ReadTotalTimeoutMultiplier = 100;
timeouts.ReadTotalTimeoutConstant = 100;
timeouts.WriteTotalTimeoutMultiplier = 100;
timeouts.WriteTotalTimeoutConstant = 100;
if (!SetCommTimeouts(h, &timeouts))
return 1;
// Test de l'écho
for (int i = 0; i < 5; ++i)
{
char sentChar = '0' + i;
char receivedChar = '#';
DWORD bytesWritten;
DWORD bytesRead;
if (!WriteFile(h, &sentChar, 1, &bytesWritten, 0))
return 1;
if (!ReadFile(h, &receivedChar, 1, &bytesRead, 0) || bytesRead != 1)
cout << sentChar << " : pas de reponse ?" << endl;
else
cout << sentChar << " = " << receivedChar << endl;
}
CloseHandle(h);
return 0;
} |