RTS /CTS COM1

Hello we are using PICOCOM4. We have problems with RTS/CTS COM1 Port.

To test the hardware we have configured them as IO and with this it is correct we can read CTS pin and we can wittre RTS (and in the other end of RS232 it works fine). The problem is when we use c# program and we try to use RTS/CTS signals it doesnt work properly. We see that the serial driver in PICOCOM4 used is pc4_serial_MS.dll. This works correctly?

We use WinCE with Kernel XIPNKPC4_CORE_CF35_131209

Thanks a lot,

Hello, sorry I suppose that I don't explain correctly. The problem that we have is hardwaree problem or serial driver in the kernel that works with hardware.

We are testing COM1 in PICOCOM4, and the problem is in the RTS/CTS Signal. About your notes "You have to set RS485=1 in the corresponding serial's driver regsitry key", I read the "PicoCOM_DeviceDriver_WCE600_eng" but it explain that this is only for COM2, is this correct?

We are trying to see that all pins work properly in our hardware. To test Serial port now we are using a program in c++ to test the RTS signal and it still doesn’t work correctly with the PICOCOM4. The RTS signal doesn’t change and the CTS always reads as set.

We tried the same program in a NETDCU8 and everything worked ok.

Pleae can you test if RTS/CTS is working in PICOCOM4 with Kernel XIPNKPC4_CORE_CF35_131209

You can download the program in https://www.dropbox.com/s/xcbhc5j8fz3tumk/sertest.exe

Thanks a lot

Next you can see the source code.

int _tmain(int argc, TCHAR *argv[])
{
printf("Select com port to open:\n");

TCHAR chPort[_MAX_PATH];

_getws(chPort);

wcscpy( chPort, chPort );

HANDLE g_hCOM = CreateFile( chPort, GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL );
if( g_hCOM == INVALID_HANDLE_VALUE )
{

ERRORMSG(1,(_T("CreateFile(%s) failed\r\n"),chPort));
return(FALSE);
}

DCB dcb;

dcb.DCBlength = sizeof( dcb );
GetCommState( g_hCOM, &dcb );

dcb.ByteSize = 8;
dcb.Parity = NOPARITY;
dcb.StopBits = ONESTOPBIT;
dcb.BaudRate = CBR_19200;
dcb.fOutxCtsFlow = 0;
dcb.EvtChar = 0x0A;

dcb.ByteSize = 7;
dcb.fParity = 1;
dcb.Parity = EVENPARITY;

SetCommState( g_hCOM, &dcb );

// Specify a set of events to be monitored for the port.
SetCommMask (g_hCOM, EV_RXCHAR | EV_CTS | EV_DSR | EV_RLSD | EV_RING);

DWORD status;
bool sCTS,sDSR;

if (g_hCOM == INVALID_HANDLE_VALUE)
{
printf("Cannot open %s\n", argv[1]);
return -1;
}

printf("Press the following keys:\n");
printf("1: Set RTS\n");
printf("2: Clear RTS\n");
printf("3: Read CTS\n");
printf("q: End Program\n");

do
{
ch = getchar();
switch (ch)
{
case '1': if (EscapeCommFunction(g_hCOM,SETRTS) == 0)
printf ("Error Setting RTS\n");
break;
case '2': if (EscapeCommFunction(g_hCOM,CLRRTS) == 0)
printf ("Error Clearing RTS\n");
break;
case '3': if (GetCommModemStatus(g_hCOM,&status))
{
sCTS = MS_CTS_ON & status;
printf("CTS: %d\n",sCTS);
}
}
} while (ch != 'q');

CloseHandle( g_hCOM );

return 0;
}

No We don't want to use COM1 as RS485, we only want to use as it is explained in the documentation. We want to use COM1 as a RS232 with RTS/CTS signals.

Thanks a lot,

Dear, did you Know when f&s can have the WINCE kernel with serial driver for PICOCOM4 with the RTS/CTS on COM1?

Now we are waiting to receive PICOCOMA5-V1-CE to test it in our hadrware. Will be available the RTS/CTS for COM 1 in Windows CE Kernel?

Thanks a lot,

Hello I read the roadmap,

- 0002156: [Serial Driver/Interface] COM2 does not work with RTS/CTS - new

This is not correct. I don't Know if com2 rts/cts works, but i'm sure that RTS/CTS for com1 doesn't work.

Thanks a lot,