programing power source over GPIB with Qt
I'm trying to communicate with a Yokogawa GS200 DC source connected to windows PC over GPIB using c++ and Qt.
I found a library from Yokogawa (https://y-link.yokogawa.com/YL008.po?V_ope_type=Show&Download_id=DL00002096&Language_id=EN) that should do the task; however, when I tried running a simple code it compiled without errors, but the there was no output or any sign that the functions were executed. I would just get "press <ENTER> to exit this window"
I'm not sure what is wrong exactly, anyone has any ideas?
The code and header file are the following:
main:
#include "tmctl.h"
int main()
{
char adr[100];
int ret;
int id;
char buf[1000];
int length;
ret = TmcInitialize( TM_CTL_GPIB, "11", &id );
if( ret != 0 ) {
return TmcGetLastError( id );
}
ret = TmcSetTerm( id, 3, 1 );
if( ret != 0 ) {
return TmcGetLastError( id );
}
ret = TmcSetTimeout( id, 300 );
if( ret != 0 ) {
return TmcGetLastError( id );
}
ret = TmcSetRen( id, 1 );
if( ret != 0 ) {
return TmcGetLastError( id );
}
/* sending *RST */
ret = TmcSend( id, "*RST" );
if( ret != 0 ) {
return TmcGetLastError( id );
}
/* *sending IDN? & receiving query */
ret = TmcSend( id, "*IDN?" );
if( ret != 0 ) {
return TmcGetLastError( id );
}
ret = TmcReceive( id, buf, 1000, &length );
if( ret != 0 ) {
return TmcGetLastError( id );
}
}
header:
/*STARTM------------------------------------------------------------------
+ Module Name : tmctl.h +
+ Abstract : Yokogawa T&M Remote Control functions. +
+ Revision History: +
+ Rev. Date. Notes. +
+ -------------------------------------------------------------- +
+ 2.0 20070309 USBTMC2 VXI11 supported. thread safe support +
+ 2.1 20080508 RS232C expand +
+ 2.2 20080704 Add TmcGetInitializeError. +
+ 2.3 20121121 coped 64 bits +
-ENDM-------------------------------------------------------------------*/
#ifndef _TMCTL_H
#define _TMCTL_H 1
#include <windows.h>
/* Control setting */
#define TM_NO_CONTROL 0
#define TM_CTL_GPIB 1
#define TM_CTL_RS232 2
#define TM_CTL_USB 3
#define TM_CTL_ETHER 4
#define TM_CTL_USBTMC 5
#define TM_CTL_ETHERUDP 6
#define TM_CTL_USBTMC2 7 // 2007/01/19 add
#define TM_CTL_VXI11 8 // 2007/01/19 add
#define TM_CTL_USB2 9
/* GPIB */
/* RS232 */
#define TM_RS_1200 '0'
#define TM_RS_2400 '1'
#define TM_RS_4800 '2'
#define TM_RS_9600 '3'
#define TM_RS_19200 '4'
#define TM_RS_38400 '5'
#define TM_RS_57600 '6'
#define TM_RS_115200 '7' // Ver2.1
#define TM_RS_8N1 '0'
#define TM_RS_7E '1'
#define TM_RS_7O '2'
#define TM_RS_8O '3' // Ver2.1 8bit,odd,onestopbit
#define TM_RS_7N5 '4' // Ver2.1 7bit,noparity,one5stopbit
#define TM_RS_8N2 '5'
#define TM_RS_NO '0'
#define TM_RS_XON '1'
#define TM_RS_HARD '2'
/* USB */
#define TM_USB_CHECK_OK 0
#define TM_USB_CHECK_NOTOPEN 1
#define TM_USB_CHECK_NODEVICE 2
#define TM_USB_READPIPE 0
#define TM_USB_WRITEPIPE 1
#define TM_USB_STATUSPIPE 2
/* Error Number */
#define TMCTL_NO_ERROR 0x00000000 /* No error */
#define TMCTL_TIMEOUT 0x00000001 /* Timeout */
#define TMCTL_NO_DEVICE 0x00000002 /* Device Not Found */
#define TMCTL_FAIL_OPEN 0x00000004 /* Open Port Error */
#define TMCTL_NOT_OPEN 0x00000008 /* Device Not Open */
#define TMCTL_DEVICE_ALREADY_OPEN 0x00000010 /* Device Already Open */
#define TMCTL_NOT_CONTROL 0x00000020 /* Controller Not Found */
#define TMCTL_ILLEGAL_PARAMETER 0x00000040 /* Parameter is illegal */
#define TMCTL_SEND_ERROR 0x00000100 /* Send Error */
#define TMCTL_RECV_ERROR 0x00000200 /* Receive Error */
#define TMCTL_NOT_BLOCK 0x00000400 /* Data is not Block Data */
#define TMCTL_SYSTEM_ERROR 0x00001000 /* System Error */
#define TMCTL_ILLEGAL_ID 0x00002000 /* Device ID is Illegal */
#define TMCTL_NOT_SUPPORTED 0x00004000 /* this feature not supportred */
#define TMCTL_INSUFFICIENT_BUFFER 0x00008000 /* unsufficient buffer size */
/* L2 Error Number */
#define TMCTL2_NO_ERROR (00000) /* No error */
#define TMCTL2_TIMEOUT (10001) /* Timeout */
#define TMCTL2_NO_DEVICE (10002) /* Device Not Found */
#define TMCTL2_FAIL_OPEN (10003) /* Open Port Error */
#define TMCTL2_NOT_OPEN (10004) /* Device Not Open */
#define TMCTL2_DEVICE_ALREADY_OPEN (10005) /* Device Already Open */
#define TMCTL2_NOT_CONTROL (10006) /* Controller Not Found */
#define TMCTL2_ILLEGAL_PARAMETER (10007) /* Parameter is illegal */
#define TMCTL2_SEND_ERROR (10008) /* Send Error */
#define TMCTL2_RECV_ERROR (10009) /* Receive Error */
#define TMCTL2_NOT_BLOCK (10010) /* Data is not Block Data */
#define TMCTL2_SYSTEM_ERROR (10011) /* System Error */
#define TMCTL2_ILLEGAL_ID (10012) /* Device ID is Illegal */
#define TMCTL2_NOT_SUPPORTED (10013) /* this feature not supportred */
#define TMCTL2_INSUFFICIENT_BUFFER (10014) /* unsufficient buffer size */
#define ADRMAXLEN (64)
typedef struct _Devicelist
{
char adr[ADRMAXLEN] ;
} DEVICELIST ;
typedef struct _DevicelistEx
{
char adr[ADRMAXLEN] ;
unsigned short vendorID ;
unsigned short productID ;
char dummy[188] ;
} DEVICELISTEX ;
typedef void(__stdcall *Hndlr)(int, UCHAR, ULONG, ULONG) ;
/* Functions */
#ifndef _TMCTL_DEFINES
#ifdef __cplusplus
extern "C" {
#endif
extern int __stdcall TmcInitialize( int wire, char* adr, int* id ) ;
extern int __stdcall TmcSetIFC( int id, int tm ) ;
extern int __stdcall TmcDeviceClear( int id ) ;
extern int __stdcall TmcDeviceTrigger( int id ) ;
extern int __stdcall TmcSend( int id, char* msg ) ;
extern int __stdcall TmcSendByLength( int id, char* msg, int len ) ;
extern int __stdcall TmcSendSetup( int id ) ;
extern int __stdcall TmcSendOnly( int id, char* msg, int len, int end ) ;
extern int __stdcall TmcReceive( int id, char* buff, int blen, int* rlen ) ;
extern int __stdcall TmcReceiveSetup( int id ) ;
extern int __stdcall TmcReceiveOnly( int id, char* buff, int blen, int* rlen ) ;
extern int __stdcall TmcReceiveBlockHeader( int id, int* len ) ;
extern int __stdcall TmcReceiveBlockData( int id, char* buff, int blen, int* rlen, int* end ) ;
extern int __stdcall TmcCheckEnd( int id ) ;
extern int __stdcall TmcSetCmd( int id, char* cmd ) ;
extern int __stdcall TmcSetRen( int id, int flag ) ;
extern int __stdcall TmcGetLastError( int id ) ;
extern int __stdcall TmcGetDetailLastError( int id ) ;
extern int __stdcall TmcCheckError( int id, int sts, char* msg, char* err ) ;
extern int __stdcall TmcSetTerm( int id, int eos, int eot ) ;
extern int __stdcall TmcSetEos( int id, unsigned char eos ) ;
extern int __stdcall TmcSetTimeout( int id, int tmo ) ;
extern int __stdcall TmcSetDma( int id, int flg ) ;
extern int __stdcall TmcGetStatusByte( int id, unsigned char* sts ) ;
extern int __stdcall TmcFinish( int id ) ;
extern int __stdcall TmcSearchDevices(int wire, DEVICELIST* list, int max, int* num,char* option) ;
extern int __stdcall TmcSearchDevicesEx(int wire, DEVICELISTEX* list, int max, int* num,char* option) ;
extern int __stdcall TmcWaitSRQ(int id, char* stsbyte, int tout) ;
extern int __stdcall TmcAbortWaitSRQ(int id) ;
extern int __stdcall TmcSetCallback(int id,Hndlr func, ULONG p1, ULONG p2) ;
extern int __stdcall TmcResetCallback(int id) ;
extern int __stdcall TmcSendTestData(int id, char* msg, int len ) ;
extern int __stdcall TmcReceiveTestData( int id, char* buff, int blen, int* rlen ) ;
extern int __stdcall TmcInitiateAbortBulkIn(int id, UCHAR tagNo) ;
extern int __stdcall TmcInitiateAbortBulkOut(int id, UCHAR tagNo) ;
extern int __stdcall TmcCheckAbortBulkInStatus(int id) ;
extern int __stdcall TmcCheckAbortBulkOutStatus(int id) ;
extern int __stdcall TmcEncodeSerialNumber(char* encode,size_t len,char* src) ;
extern int __stdcall TmcDecodeSerialNumber(char* decode,size_t len,char* src) ;
extern int __stdcall TmcGotoLocal( int id ) ;
extern int __stdcall TmcLocalLockout(int id) ;
extern int __stdcall TmcAbortPipe(int id,long pipeNo) ;
extern int __stdcall TmcResetPipe(int id,long pipeNo) ;
extern int __stdcall TmcWriteHeader(int id, int blen) ;
extern int __stdcall TmcReceiveWithoutWriteHeader(int id, char* buff, int blen, int* rlen, int* end ) ;
extern int __stdcall TmcGetTagNo(int id, UCHAR* tag) ;
extern int __stdcall TmcSendByLength2( int id, char* msg, int msgSize, int len, CHAR eof) ;
extern int __stdcall TmcDeviceChangeNotify(HWND hWnd, BOOL bStart) ;
extern int __stdcall TmcCheckUSB(int id) ;
extern int __stdcall TmcGetPipeNo(int id,int type,int* pipeNo) ;
extern int __stdcall TmcCheckGUID(void *lParam) ;
extern ULONG __stdcall TmcGetInitializeError() ;
// L2
extern int __stdcall xTmcSearchDevices(int wire, DEVICELIST* adrlist, int max, int *num,char* option) ;
extern int __stdcall xTmcSearchDevicesEx(int wire, DEVICELISTEX* adrlist, int max, int *num,char* option) ;
extern int __stdcall xTmcInitialize( int wire, char* adr, int* id ) ;
extern int __stdcall xTmcInitializeEx( int wire, char* adr, int* id, int timeout ) ;
extern int __stdcall xTmcFinish( int id ) ;
extern int __stdcall xTmcSend( int id, char* msg ) ;
extern int __stdcall xTmcSendByLength( int id, char* msg, int len ) ;
extern int __stdcall xTmcSendSetup( int id ) ;
extern int __stdcall xTmcSendOnly( int id, char* msg, int len, int end ) ;
extern int __stdcall xTmcReceive( int id, char* buff, int blen, int* rlen ) ;
extern int __stdcall xTmcReceiveSetup( int id ) ;
extern int __stdcall xTmcReceiveOnly( int id, char* buff, int blen, int* rlen ) ;
extern int __stdcall xTmcReceiveBlockHeader( int id, int* length ) ;
extern int __stdcall xTmcReceiveBlockData( int id, char* buff, int blen, int* rlen, int* end ) ;
extern int __stdcall xTmcCheckEnd( int id ) ;
extern int __stdcall xTmcDeviceClear( int id ) ;
extern int __stdcall xTmcSetRen( int id, int flag ) ;
extern int __stdcall xTmcGetLastError( int id ) ;
extern int __stdcall xTmcSetTerm( int id, int eos, int eot ) ;
extern int __stdcall xTmcSetTimeout( int id, int tmo ) ;
extern int __stdcall xTmcCreateSRQHandler( int id, UINT msgId, HWND hWnd) ;
extern int __stdcall xTmcDleateSRQHandler( int id ) ;
extern int __stdcall xTmcSetCallback(int id,Hndlr func, ULONG p1, ULONG p2) ;
extern int __stdcall xTmcResetCallback(int id) ;
extern int __stdcall xTmcSet( int id, char *msg) ;
extern int __stdcall xTmcSetBinary( int id, char* msg, char *buf, int size ) ;
extern int __stdcall xTmcGet( int id, char *msg, char* buf, int blen, int* rlen ) ;
extern int __stdcall xTmcGetBinary( int id, char *msg, char* buf, int blen, int* rlen ) ;
extern int __stdcall xTmcGetErrorQueue(int id) ;
extern int __stdcall xTmcSetNE( int id, char *msg) ;
extern int __stdcall xTmcSetBinaryNE( int id, char* msg, char *buf, int size ) ;
extern int __stdcall xTmcGetNE( int id, char *msg, char* buf, int blen, int* rlen ) ;
extern int __stdcall xTmcGetBinaryNE( int id, char *msg, char* buf, int blen, int* rlen ) ;
extern int __stdcall xTmcSetNES( int id, char *msg) ;
extern int __stdcall xTmcSetBinaryNES( int id, char* msg, char *buf, int size ) ;
extern int __stdcall xTmcLock( int id ) ;
extern int __stdcall xTmcUnlock( int id ) ;
#ifdef __cplusplus
}
#endif
#endif
#endif
a discription of the functions and variables in addition to the .dll file can be found in the library folder here.
of course I used LIBS += "...\tmctl.dll" to link the library to my project too.
Mr Lister1 Answer
ok guys, so the code is working. I'm not sure how (it is the exact same code that I have upthere).
The only difference though is that I tried running the code using VS and for that I added the dll file to the (C\windows\system) directory. After it worked there I thought of giving it another try in Qt and surprise it worked!
Although I doubt having the dll file in the system directory has any effect because I refrenced another location when I included it in Qt.
If anyone has any insights or theories please feel free to share.
answered on Stack Overflow Feb 19, 2016 by 
Mohammad Omar
Mohammad OmarUser contributions licensed under CC BY-SA 3.0