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Altera_Forum
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10 years ago

boot NIOS and FPGA from EPCS flash

Hi all, I am having problems booting up my Nios C code from EPCS. I am building my own FPGA board, not using a demo board. I'm using Quartus 15.0 and DE0 NanoBoard( Cyclone IV as FPGA) My app...
Altera_Forum's avatar
Altera_Forum
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10 years ago

Could you post the exact code you are using for your test? Including all inputs and outputs?

Try to read the flash location before you write it too. A flash chip can only switch 1 bits to 0's and not the other way round so in some cases it can explain why you don't see the same values. Try to only write to an area that reads as ff's.