setting trigger source to analog out without level

[M. Hamza Öncüer]

Hello,

I have an analog discovery 2 board, I want to set the trigger source to analog out without a level information, I made a loopback with w1 and c1 what I am trying to do is that creating a trigger beginning of the each period of the analogout is this possible ? 

[JColvin]

Hi @Hamza Oncuer,

To clarify, are you wanting repeated individual data captures every time the start of a period occurs?

Right now, setting the trigger for an Scope to start on a Wavegen/Analog Output will start the oscilloscope whenever the Wavegen is enabled; it doesn't matter what level you set the trigger condition to be or if the Wavegen is outputting a flat DC signal.

Thanks,
JColvin

[attila]

Hi @Hamza Oncuer

Use dwf.FDwfAnalogInTriggerSourceSet(hdwf, trigsrcAnalogOut1) 

In newer software version (>=3.18.29) the analog-out will generate trigger for each signal cycle when run time is continuous. Older versions and finite runs only on (re)start.

 

[M. Hamza Öncüer]

Thank you for the quick response, The last version of the waveform seems to be gets the job done, I am trying to write a similar program using api, I used this function to enable continuous triggering but it's not working, Could you help me please.

 dwf.FDwfAnalogOutRepeatTriggerSet(device_data.handle, channel, ctypes.c_bool(True)) 

[attila]

Hi @Hamza Oncuer

See the following: AnalogInOut_Trigger.py

[M. Hamza Öncüer]

Thanks a lot.