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Altera_Forum's avatar
Altera_Forum
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14 years ago

Support of Nios II flash programmer for SPI Flash

Here is a very general question on Nios II flash programmer. As we know, it supports the programming for both CFI flash and EPCS serial flash. May I know how about SPI flash? If it also supports, what are the necessary controllers that must be present in SOPC Builder system other than SPI controller? Also, what is the correct command (sof2flash & elf2flash) for converting both .sof and .elf to .flash? I know for EPCS, --epcs is needed, but how about for SPI?

Regards,

Carid

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    EPCS serial flash is SPI flash. You can even replace the EPCS flash with certain non Altera SPI flash parts and everything still works and some of the Atlera tools may still indicate it detects the flash as EPCS flash.

    For example, I have used the Numonyx M25P64 in place of the EPCS64 with no problems. If you search the forums you can find reports of other examples working (or not working) in place of the EPCS flash parts.