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Altera_Forum
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14 years ago

SignalTap and Cyclone VI

Hello. I have strange problem with SignalTap and Cyclone IV. There are fault responses. Frequency is low (50 MHz) and I don't know what to do
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

I had a similar problem when using a USB blaster that didn't came from Altera and running signaltap on the linux platform. It seemed that some ftdi drivers messed up a bit the data collected from the blaster and it got shifted a bit. I don't know if you are in a similar situation.

Can you route those signals to an FPGA pin and check them with a scope?