cyclone iii nios boot from epcs

Thanks, I think it's closer! The fpga logic is definitely being booted correctly from the epcs ( have it toggling an i/o), but the nios code doesn't execute at all ( a different i/o).

The reset vector in the sopc is pointing to the epcs controller peripheral (no offset), and the Nios IDE is setup to have everything run in external sram. If I power-on and allow the epcs to boot the fpga logic, and then I just download the nios code using the ide afterwards, then the nios program also works fine. So it seems it's only the nios portion (either flashed in the epcs or with the bootloader) that has the problem.

As a test for now, I am flashing both the fpga logic and the nios via the Nios IDE. The tool doesn't have any option to specifically specify the use of "epcs_controller_boot_rom.flash"... so I simply check the box to flash the software project and the FPGA configuration data (pointing to the sof file). During programming I see perform 2 flashes (each with checksum/verify/erase/programming):

"$SOPC_KIT_NIOS2/bin/nios2-flash-programmer" --epcs --base=0x04121800 --cable='U

SB-Blaster [USB-0]' --sidp=0x041220b8 --id=519100584 --timestamp=1322097713 "FpgaLogic.flash"

and

# Programming flash with the project

"$SOPC_KIT_NIOS2/bin/nios2-flash-programmer" --epcs --base=0x04121800 --cable='U

SB-Blaster [USB-0]' --sidp=0x041220b8 --id=519100584 --timestamp=1322097713 "ep

cs_controller.flash"

I get no errors when flashing, yet only the fpga logic works on power-on. What can I check for?