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Altera_Forum
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8 years ago

No JTAG after AS programming on EP2C5T144

I tried just a hello world example on EP2C5T144 on a simple dev board. Programming via JTAG worked. I switched to AS and programmed it - all worked. However, when I switch back to JTAG now, it...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

Hi,

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Is that expected behaviour that after programming the flash JTAG may not work?

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No,this not expected behavior.

This may be because of configuration file or signal integrity related issues.

You can try to monitoring the flash and jtag signals which will help to find the exact cause of the problem.

Let me know if this has helped resolve the issue you are facing or if you need any further assistance.

Best Regards,

Anand Raj Shankar

(This message was posted on behalf of Intel Corporation)