CIII/EPCS design configures and programs but does not start

Hi Mark.

I think you definitely have a problem with the Nios 2 bootloader.

Since you initially said you made the same with other devices (and it worked fine!!), it could be that your are using the bootloader of the wrong device, because you did a copy and paste with old project files. Or maybe bootloader image has been corrupted because of any other reason.

The bootloader is usually stored in a epcs_controller_boot_rom.hex file in the fpga project.

It is generated from the bootloader source files in Altera directory

C:\altera\<your version>\nios2eds\components\altera_nios2\boot _loader_sources\boot_loader_epcs_bits_<device_fami ly>.S

I'd recommend you check the hex file and possibly regenerate it from the source files.

I attach for your convenience my CIII bootloader file. It should work for you, too.

Execute a fpga MIF update, flash into epcs and let me know if this solves your problem.

Regards

Cris