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Altera_Forum
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8 years ago

Cyclone 5 fpga is not booting from spi flash

Hi all, I am trying to boot cyclone 5 (5cgtfd7d5f27i7n) FPGA from QSPI FLASH (epcq128si16n) .I am doing following steps: 1. I compiled counter program for blinking LED in quartux2,assigned FPGA pins,...
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Altera_Forum
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8 years ago

CONF_DONE high after programming the FLASH is because the FPGA is configured with the FLASH loader image used in jic programming.

Monitor nSTATUS during configuration from FLASH and look for an error. If all is well it should only ever follow nCONFIG (which I suspect you have pulled up). So, neither nCONFIG nor nSTATUS should do anything. nSTATUS going low will indicate an error.

Confirm you've generated the .jic with the right .sof.

Finally, as previously suggested, hold nCONFIG low to delay configuration.

Cheers,

Alex