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Altera_Forum
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18 years ago

Stratix III wierd JTAG Config problem

I've got 2 Stratix III devices in a JTAG chain. If I power the board, I can scan the chain OK and program repeatedly but as soon as I switch off the power and re-apply, JTAG no longer works. i...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

I'm sure it's a layout problem because it seems to be affected by temperature i.e. if I apply a short squirt of freeze-it spray and reboot, I can see the chain. I'll take a look at the PCB plots.

Thanks for the responses.