mfc win32 시리얼

모종의 음모/Win32 시리얼

구차니 2017. 4. 5. 15:16

귀찮아서 대충 구현했는데..

char 배열을 써야지 CString::GetBuffer(n) 으로 버퍼를 받아오니 이상해지네..

설정은 좀더 찾아 봐야겠지만, 자동으로timeout 걸리면서 최대 20자 까지 읽도록 설정이 된 것 같다.

{

CString port;

port = _T("\\\\.\\") + port;

HANDLE m_hCommPort = ::CreateFile(port, GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, 0/*FILE_FLAG_OVERLAPPED*/, 0);

DCB dcb = {0};

dcb.DCBlength = sizeof(DCB);

if (!::GetCommState (m_hCommPort,&dcb))

{

TRACE ("CSerialCommHelper : Failed to Get Comm State Reason: %d",

GetLastError());

return E_FAIL;

}

dcb.BaudRate = 115200

dcb.ByteSize = 8;

dcb.Parity = 0;

dcb.StopBits = ONESTOPBIT;

if (!::SetCommState (m_hCommPort,&dcb))

{

ASSERT(0);

TRACE ( "CSerialCommHelper : Failed to Set Comm State Reason: %d",

GetLastError());

return E_FAIL;

}

CString hex_query="ffeeddccbbaa00";

DWORD iolen;

int iRet = WriteFile (m_hCommPort, hex_query, hex_query.GetLength(),&iolen ,NULL);

char temp[20];

int abRet = ReadFile(m_hCommPort, &temp ,20, &iolen, NULL) ;

temp[iolen] = '0x00';

CloseHandle(m_hCommPort);

return 0;

}