Hi Everyone,
Thank you to all who have put time effort and money into figuring out these upgrades, I really appreciate it. I'm having an issue with the external trigger view for an EDUX1002A which has had its ID set to 23 (DSOX1202A) had the trigger mod done and had the 1.20 license enabled firmware (including the 2Mpt memory hack) installed. I've checked and double checked all the modifications required and the quality of the work and can't figure out what's causing this.
Everything works perfectly until I enable external trigger view (pressing the "External" button). When I do that and the time base is set to greater than 50us/ then a weird artifact occurs where the data to the left and right of the trigger point no longer match. Below is the capture with channel 1 monitoring the probe compensation signal and externally triggering off the probe compensation signal using a second 10:1 probe, everything is fine.
I turn on external view, with no other changes and you can see the strange artifact as shown below.
If I set the timebase to less than 100uS/ the artifact goes away. Maybe interestingly, the artifact always occurs a fixed number of divisions to the left of the trigger point.
Part of me definitely wonders if it's part of the memory hack, just because it looks so much like a circular buffer overflow, but I can't find any information about anyone else having the issue (though it's maybe an edge use case?). I would uninstall the hacked software to see if that's the cause, but frankly I'm not sure how to do that.
Any help or pointers as to what I should be looking at would be greatly appreciated.
Mike