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Altera_Forum's avatar
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

If I understand right, you didn't yet try to configure the FPGAs. Failure of configuration would be an actual problem. Please notice, that in some situations the Quartus programmer option to disable the on-chip configuration controller must be set to allow intended JTAG actions when the AS flash is empty.