Agilent Technologies E2094S Guía de usuario descargar pdf (Pagina 59)

Programming with VISA 3

Agilent VISA User’s Guide 59

printf("TTL0");

break;

default:

printf("<other 0x%x>", trigId);

break;

}

printf("\n");

return VI_SUCCESS;

}

void main(){

ViSession defaultRM,vi;

/* open session to VXI device */

viOpenDefaultRM(&defaultRM);

viOpen(defaultRM, "VXI0::24::INSTR", VI_NULL,

VI_NULL, &vi);

/* select trigger line TTL0 */

viSetAttribute(vi, VI_ATTR_TRIG_ID,

VI_TRIG_TTL0);

/* install the handler and enable it */

viInstallHandler(vi, VI_EVENT_TRIG, myHdlr,

(ViAddr)10);

viEnableEvent(vi, VI_EVENT_TRIG, VI_HNDLR,

VI_NULL);

/* fire trigger line, twice */

viAssertTrigger(vi, VI_TRIG_PROT_SYNC);

/* unenable and uninstall the handler */

viDisableEvent(vi, VI_EVENT_TRIG, VI_HNDLR);

viUninstallHandler(vi, VI_EVENT_TRIG, myHdlr,

(ViAddr)10);

/* close the sessions */

viClose(vi);

viClose(defaultRM);

}

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Agilent Technologies E2094S Guía de usuario Pagina 59