small boot copier for EPCS

I can't access Quartus right now in order to check, but if I remember correctly, you simply need to point to the right bootloader hex in the epcs device properties in Qsys/SOPC builder.

Then, again in Qsys, in Nios properties, you set epcs base address as nios reset vector

Hi Cris,

I am using "EPCS/EPCQx1 serial flash controller" IP, but I can't find the entry to set the .hex file. Could you please help me to double check it when you are available?

Thank you and best wishes,

Derek

You are right. I forgot this point.

Actually the epcs mif points to a epcs_controller_boot_rom.hex file which is automatically added by Quartus to your project folder whenever you instantiate the epcs component.

If you want to use a custom boot loader, you must rename your hex this way and replace the default one.

The tricky part is that the regular file is copied again from Quartus library each time you regenerate the system with Qsys; then you must remember to replace it again with the custom one whenever you make any change in Qsys, otherwise fpga would configure epcs with the standard boot loader and your nios application won't start.

I never bothered if there's a better way to do this, although I think so.

Hi Cris,

I am happy to report I get it done finally. I choose another example, http://www.alterawiki.com/wiki/epcs_bootloaders, follow its instruction, and it works.

Thank you very much for your sharing.

Best wishes,

Derek

Hi Cris,

I am happy to report that I get it done. I follow another example http://www.alterawiki.com/wiki/epcs_bootloaders, and it works.

Thank you very much for your sharing,

Derek