Honored Contributor
Honored ContributorHello All,
I'm seeing a similar issue. I'm using Quartus 12.0 sp2. The signaltap gives crazy values for ~100 clks but then it corrects itself. For Instance, I have a decrementing counter.. it's counting down... then all of the sudden something happens.. then the counter goes to zero.. all the other signals get missed up too. After the crazy blip the counter resumes counting down.. it's value it resumes at is less than the value before the blip. It's weird because i know its happening but i can never trigger on it.... I can trigger of real transitions that make sense but i can never trigger on something in the crazy zone. It's almost like it didn't really happen and the fpga is running as normal but the signal tap memory gets corrupted for a short period of time. Another thing i've noticed is that the signal tap takes a long time of offload data... these is a lag whenever i push any button. This makes it very difficult to try to debug anything.. so any advice would help.
