How to boot from SPI Flash?

Hi motal,

> I have design with spi flash to store my firmware and sdram to run it from.

> My EPCS is too small to run code from it.

You really shouldn't need much code to load a small application (a 2nd stage

boot loader) that pulls your code in from an SPI device. How much room

is left on your EPCS?

> If I understand well, the boot-loader can integrate to the NIOS within the

> hardware image. Is that correct?

Yes -- or you could try to replace/modify the default bootloader in the EPCS

peripheral -- have it load from your SPI device rather than the EPCS device.

From a practical point-of-view, the EPCS is just an SPI device that you

don't get to do pin assignments for ;-)

Regards,

--Scott