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Altera_Forum
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15 years ago

cyclone3 nstatus pin keeps dropping low

Hi, all. My EP3C40Q240C8N can't work, and I found its nstatus pin would drop to low intermittently after board powered. there is no blaster down-loader, and nconfig pin keeps high. (waveform is...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi, FvM, thanks a lot for your patient help.

I enlarge the config_done pin's serial resistor, which connect to a NPN with indicating light. The device work well then. I don't know why, but it's OK now.

Thank you very much.