07-24-2013 02:25 PM
When it comes to external memories to store configuration data, we have the following options:1. EPCS. 2. EPCQ. 3. CFI Flash. 4. Quad SPI. 5. NAND Flash. If I have a design containing NIOS, how would I put the HW (that comes from .sof) + SW (that comes from .elf) images into a single image to program any of these flash memories? What steps are needed? Are the steps the same for them?
07-24-2013 03:57 PM
For EPCS, you would use the EPCS Serial Flash Controller Core IP block and use a JIC programming file.For the parallel and SPI flash, I believe you are looking at multiple images needed.
07-25-2013 09:15 AM
Hi,i do create my epcs images using the following commands from the Nios Command Shell:
sof2flash --epcs --compress --input=hw.sof --output=hw.flash elf2flash --epcs --after=hw.flash --input=sw.elf --output=sw.flashNow i do have 2 flash files which are combined via:
cat hw.flash sw.flash > image.flashAnd converted to epcs binary
nios2-elf-objcopy -I srec -O binary image.flash image.binNow your image.bin can be wriiten directly to address 0 of your epcs, or to another address if you use the Remote_Config IP. I do not have any experience concerning the other Flash types, but think there's an equal approach.