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Altera_Forum's avatar
Altera_Forum
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16 years ago

sof2flash

i want to create a flash file with the nios2 shell the problem is, if i use sof2flash it creates a EPCS128 file but i have a EPCS16 file: $ sof2flash --epcs --input=FPGA.sof --output=FPGA.fla...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

An EPCS device is really just a SPI (serial) flash. So, the epcs_controller, in your SOPC Builder system, acts as a SPI master talking to the SPI slave (serial flash EPCS device).

Depending upon your device, the SPI signals are either connected automatically for you or you have to do it at the top-level of your design.

When connected automatically, you have to ensure that your Dual Purpose pins settings will allow the ASMI/SPI signals to function properly...which is what Jake was referring to.

Cheers, and Good luck!

- Ura