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Altera_Forum
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19 years ago

Cyclone II programming problems

Hi all -- I've built a few PCBs based on Cyclone II FPGAs. Some of these boards, and especially the last, suffer from an annoying problem: When connecting the FPGA to the JTAG cable, Quart...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

Hi all,

Good day.

I'm facing the same problem exactly where the CONF_DONE pin stays low and the nSTATUS shows a pulse train (frequency around the same).

I wonder what the root cause of the above problem and what solution can be apply to solve the problem. I have 2 PCBs that working fine but the rest 3 PCBs having that problems.

Hopefully some one able to advise. Thanks in advance.

Regards,

Dennis