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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
Icon for Honored Contributor rankHonored Contributor
10 years ago

I'm only using an outdated version of Quartus so I don't know what the exact settings are now.

On my Cyclone IV / SOPC Builder project the EPCS controller exports the serial signals out of the SOPC component and they are connected to the correct pins in my top-level file. All four of them are configured as "regular I/O" for all four of them.

But again, if you get the correct information from the flash (number of blocks, block size) it means that at one point the controller did get a valid reply from the EPCS chip with an ID, so I think that this part is working.

I don't know the DE0-nano kit but do you have some example designs with the kit? If yes you can try and open them in Quartus and see how they connected them.