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Altera_Forum
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16 years ago

cyclone iii nios boot from epcs

cyclone iii nios boot from epcs: i use nios_flash_programmer to burn fpga+nios to epcs64 ,but do not boot from epcs,i use memtes to Test EPCS Serial Flash first time : ------------...
Altera_Forum's avatar
Altera_Forum
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14 years ago

You don't need to know the NIOS app's offset.

If you've placed the NIOS app right after FPGA image, then the EPCS bootloader will detect the FPGA image, calculate the size of the image, skip it and start executing the NIOS application.

That's why you have to set the reset vector to the offset 0x0000 of your EPCS Controller (that's where the bootloader is located).

More details can be found from the following Altera documents:

- Embedded Peripherals IP User Guide (the section "EPCS Serial Flash Controller Core")

- Application note 458 "Alternative Nios II Boot Methods"

Regards,

Jari