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Hello, I have been able to compile most of the sample linux prg's OK and have written a few of my own that compile and run OK. I have a need to do some serial communications (RS232). These are the linking errors I get when trying to compile. vend@v1:~/fivelinux/samples$ ./build.sh qibixx compiling.....

Hello, I have been able to compile most of the sample linux prg's OK and have written a few of my own that compile and run OK. I have a need to do some serial communications (RS232). These are the linking errors I get when trying to compile. vend@v1:~/fivelinux/samples$ ./build.sh qibixx compiling.....

... 1024, 128 ) if ! BuildCommDcb( "COM1:9600,n,8,1", @cDcb ) MsgStop( "Error BUILD!" ) return .f. endif #ifdef __CLIPPER__ if ! SetCommState( cDcb ) #else if ! SetCommState( nComm, cDcb ) #endif MsgStop( "Error SETCOMM!" ) return .f. endif return nComm function BytesAtPort( ...

... , @cDcb ) nError := GetCommError( nComm ) MsgInfo( "Error al Configurar puerto: " + Str( nError ) ) Return 0 EndIf If ! SetCommState( nComm, cDcb ) nError := GetCommError( nComm ) MsgInfo( "Error al setear Puerto: " + Str( nError ) ) Return 0 EndIf Return nComm ...

... , @cDcb ) nError := GetCommError( nComm ) MsgInfo( "Error al Configurar puerto: " + Str( nError ) ) Return 0 EndIf If ! SetCommState( nComm, cDcb ) nError := GetCommError( nComm ) MsgInfo( "Error al setear Puerto: " + Str( nError ) ) Return 0 EndIf Return nComm ...

... GetCommError( IdPort) MsgInfo( "Error al Configurar: " + Str( nError ) ) RETURN 0 ELSE MsgRun("Puerto Configurado") ENDIF IF ! SetCommState( IdPort, cDcb ) nError = GetCommError( IdPort) MsgInfo( "Error al setear: " + Str( nError ) ) RETURN 0 ELSE MsgRun("Puerto ...

... 4024, 1024 ) if ! BuildCommDcb( "COM2:9600,N,8,1", @cDcb ) MsgStop( "Error BUILD!" ) return .f. endif #ifdef __CLIPPER__ if ! SetCommState( cDcb ) #else if ! SetCommState( nComm, cDcb ) #endif MsgStop( "Error SETCOMM!" ) return .f. endif /* "02 30 30 30 31 31 ...

... support a communications port number, the OpenComm function will fail. The communications device is initialized to a default configuration. The SetCommState function should be used to initialize the device to alternate values. The receiving and transmission queues are used by interrupt-driven ...

... an empty USB port, correct? No, you are just trying to communicate with a non-existent serial port (COM4). Unfortunately, this doesn't explain why SetCommState() is returning .T. ... :-( EMG

... serial port is listed as COM1. Do I assume that the USB ports are COM2 and COM3? OK, I tried the test program on COM2 and COM3 it gives the "SetCommState Error" on both attempts. Note that I have a wireless mouse adapter on one of the USB ports. The other USB port is empty. So, I am ...

Jeff,

Sorry, I meant:

"Your problem starts back to SetCommState(). It fails, so WriteComm() freezes."

EMG

Hi James,

Can you please recompile with COM4.

With your version, I get the SetCommState error since I have no COM1

I have tried my compiled version on other PCs with the same result.

Jeff,

Enrico's code works for me (XP SP3, FWH 13.04/xHarbour). There is no SetCommState error.

I see you are using an older version of FWH. I am emailing you a copy of my test EXE so you can test it on your hardware.

Do you also have another PC you can test on?

James

Enrico,

Do you get a SetCommState error when you run the test?

If so, that might explain why yours works.
I do not get a SetCommState error.

I took your last test, compiled it and I get the "Just before writing to com port" message then nothing. It just hangs.

... SEQUENCE nCom := OPENCOMM( "COM1", 16384, 16384 ) IF nCom < 0 BREAK ENDIF BUILDCOMMDCB( "COM1:9600,N,8,1", @cDcb ) IF !SETCOMMSTATE( nCom, cDcb ) BREAK ENDIF EnableCommNotification( nCom, oWnd:hWnd, 1, -1 ) oWnd:bCommNotify = { | nCom | CheckSerial()} RECOVER nCom = ...