Posted Mon, 10 Apr 2023 20:29:52 GMT by Norwood, Daniel Applications Engineer | HVP-HPD
I am working with an AFG31002 wavegen and am using a trigger and trigger delay to sync the two channels.<br> However, regardless of the trigger delay settings the two channels always trigger at the same time.<br> <br> How can I correct this? I have tried both triggering with the button on the AWG (Trigger set to external) and with the VISA command &quot;TRIGGER:SEQUENCE:IMMEDIATE&quot;<br> <br> Thanks,<br> Daniel
Posted Fri, 14 Apr 2023 13:37:05 GMT by Schneider, Daniel
Hello Daniel,<br> <br> It looks like you might be modifying the settings for synchronizing multiple AFG31ks together.&#160;&#160;<br> <br> Instead, to modify the delay between two channels on the same instrument you will need to modify the phase/delay setting.&#160; This can be found under the frequency parameter for a given waveform.&#160;&#160;
Posted Fri, 05 May 2023 16:56:01 GMT by Norwood, Daniel Applications Engineer | HVP-HPD
Hi Daniel,<br> Thanks for the response, and my apologies for the delay.&#160;<br> <br> Actually, the trigger delay is the setting I need to synchronise both channels in burst mode based off of an external trigger. I was using the feature as intended, it just wasn't working.<br> <br> I was able to resolve my issue by updating the firmware. It turns out the version of firmware shipped on the device had a bug where the trigger delay setting in burst mode has no affect.&#160;<br> This is documented in the release notes of the next version of firmware as Issue number AFG-505:<br> &quot;When using Burst mode with an external delay, the Trigger delay value does not affect the displacement of the waveform. This issue was introduced in the v1.5.2 release.<br> Resolution<br> This issue has been corrected.&quot;<br> <br> Replying here to save debug effort for whoever else has this issue.<br> <br> -Daniel

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