Hello,
I am controlling one Agilent 33220A through one CVI application using the USB port, thanks to the API :
Ag33220_InitWithOptions, Ag33220_ArbitraryWaveformSetData,Ag33220_SystemWaitForOperationComplete...
I am performing a loop where my waveform is changing. THis waveform is sent in the volatile memory of the device.
This wavefom as 2000 points.
What i observe is that it works for 4 iterations, then an error -222 Data out of range happens when i try to set the waveform with
Ag33220_ArbitraryWaveformSetData(session, WAVEFORM_SIZE, fWaveform, &iActual)
It is as if the Volatile buffer size has reach the end. But impossible to clean it or raz it in order that i can update a new waveform.
IS there any proper way to do this?
Thank you
Regards
LOOP
GenerateDampedSinus ( fWaveform) ;
status = Ag33220_reset(session); //Reset the function generator
// Download data points to volatile memory
Check(session, Ag33220_ArbitraryWaveformSetData(session, WAVEFORM_SIZE, fWaveform, &iActual));
Check(session,Ag33220_SystemWaitForOperationComplete(session, 80000));
Check(session,Ag33220_ArbitraryWaveformCopyData(session, "VOLATILE")); // Copy arb to non-volatile memory
Check(session,Ag33220_SetAttributeViString(session, "", AG33220_ATTR_ARBITRARYWAVEFORM_USER, "VOLATILE"));
Check(session,Ag33220_SetAttributeViInt32(session, "", AG33220_ATTR_OUTPUT_FUNCTION, AG33220_VAL_OUTPUT_FUNCTION_USER));
Check(session,Ag33220_SetAttributeViReal64(session, "", AG33220_ATTR_OUTPUT_FREQUENCY,PATTERN_FREQUENCY_HZ));
Check(session,Ag33220_SetAttributeViReal64(session, "", AG33220_ATTR_OUTPUT_VOLTAGE_AMPLITUDE,Signal_type.Amplitude_v));
Check(session,Ag33220_SetAttributeViReal64(session, "",AG33220_ATTR_OUTPUT_VOLTAGE_OFFSET,Signal_type.DcOffset));
Check(session,Ag33220_SetAttributeViBoolean (session, "", AG33220_ATTR_BURST_STATE, VI_TRUE)); // Turn sweep on
Check(session,Ag33220_ConfigureTriggerSource (session, "",AG33220_VAL_EXTERNAL));
// Check(session,Ag33220_SetAttributeViBoolean (session, "",AG33220_ATTR_OUTPUTTRIGGER_STATE,VI_TRUE));
// Check(session,Ag33220_SetAttributeViBoolean (session, "",AG33220_ATTR_OUTPUTTRIGGER_SLOPE/*AG33220_ATTR_OUTPUTTRIGGER_STATE*/ ,VI_TRUE));
Check(session,Ag33220_SetAttributeViInt32 (session, "", AG33220_ATTR_OUTPUTTRIGGER_SLOPE ,AG33220_VAL_TRIGGER_SLOPE_NEGATIVE));
Check(session,Ag33220_StateStorageSave(session, 1)); // Store state in memory location 4
Check(session,Ag33220_StateStorageRecall(session, 1));
Check(session,Ag33220_SetAttributeViBoolean(session, "", AG33220_ATTR_OUTPUT_STATE, VI_TRUE)); // Enable output, s
Check(session, Ag33220_StateStorageDelete ( session, 1));
END LOOP
