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Altera_Forum
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14 years ago

Excalibur FPGA JTAG Issues

Hey all, I'm working on a legacy project that is using an EXPA10 FPGA with an ARM922T processor built in. I'm currently trying to program it via JTAG, but when I scan the chain, It comes up sayi...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

I had a feeling it was that, but I wanted to make sure that I was debugging this correctly before I chalked it up to the part / board. I think the root cause of everything is that the TMS or TCK lines within the FPGA are garbage, that's why I'm seeing both devices in debug, but not detecting the full chain like I should be able to.

Thanks everyone for your input! If anybody else has input / feedback, it is greatly appreciated.