Created
December 8, 2012 17:47
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/* | |
* main.cpp | |
* | |
* Created on: 08.12.2012 | |
* Author: sk | |
*/ | |
#include <iostream> | |
#include <windows.h> | |
using namespace std; | |
LPCSTR PORTNAME = "COM3"; | |
const int n = 17; | |
struct modeeg_packet | |
{ | |
uint8_t sync0; // = 0xA5 | |
uint8_t sync1; // = 0x5A | |
uint8_t version; // = 2 | |
uint8_t count; // packet counter. Increases by 1 each packet | |
uint16_t data[6]; // 10-bit sample (= 0 - 1023) in big endian (Motorola) format | |
uint8_t switches; // State of PD5 to PD2, in bits 3 to 0 | |
}; | |
HANDLE initSerial() { | |
HANDLE hSerial = CreateFile(PORTNAME, GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
if (hSerial == INVALID_HANDLE_VALUE) { | |
cerr << | |
"Failed to read from port" << endl << | |
GetLastError() << endl; | |
} | |
DCB dcbSerialParams = {0}; | |
dcbSerialParams.DCBlength=sizeof(dcbSerialParams); | |
if (!GetCommState(hSerial, &dcbSerialParams)) { | |
cerr << "Couldn't set COM port state" << endl; | |
} | |
dcbSerialParams.BaudRate=460800; | |
dcbSerialParams.ByteSize=8; | |
dcbSerialParams.StopBits=ONESTOPBIT; | |
dcbSerialParams.Parity=NOPARITY; | |
if(!SetCommState(hSerial, &dcbSerialParams)){ | |
cerr << "Analyzing error" << endl; | |
} | |
COMMTIMEOUTS timeouts={0}; | |
timeouts.ReadIntervalTimeout=50; | |
timeouts.ReadTotalTimeoutConstant=50; | |
timeouts.ReadTotalTimeoutMultiplier=10; | |
timeouts.WriteTotalTimeoutConstant=50; | |
timeouts.WriteTotalTimeoutMultiplier=10; | |
if(!SetCommTimeouts(hSerial, &timeouts)){ | |
cerr << "Setting timeout error" << endl; | |
} | |
return hSerial; | |
} | |
void closeSerialPort(HANDLE hSerial) { | |
CloseHandle(hSerial); | |
} | |
int main() { | |
cout << "reading from " << PORTNAME << endl; | |
HANDLE handler = initSerial(); | |
int i = 0; | |
for (i = 0 ; i < 9999999 ; i++) { | |
char szBuff[n + 1] = {0}; | |
DWORD dwBytesRead = 0; | |
if(!ReadFile(handler, szBuff, n, &dwBytesRead, NULL)){ | |
cerr << "Reading error" << endl; | |
} | |
modeeg_packet* msg = (modeeg_packet*)szBuff; | |
cout << msg->count << endl; | |
} | |
closeSerialPort(handler); | |
return 0; | |
} |
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