I'm working on a custom board that is designed around the Cyclone II (EP2C20F484C8N) FPGA. The board also has a serial flash memory device (EPCS4N), which is the 4 MBit serial flash configuration device. I was attempting to load a .sof configuration file onto the EPCS4N device.
It fails stating that EPCS "no EPCS Layout Data" was available. I attached a screenshot of my error. Can someone please help me resolve this issue?
You need to add (or modify if already there) a "nios2-flash-override.txt" file to your Quartus installation. This tells the nios programmer some basic facts about the FLASH device (ID C84013) that it doesn't know about.
Refer to the following post:
Towards the bottom there is a file you can download. It tells you where to put it. You will need to add an entry for your particular device: EPCS-C84013 with sector count and sector size information - you'll get that from the datasheet for the 'EPCS' (equivalent) part you're using.