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Altera_Forum
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9 years ago

QSPI Flash Programming

Hello All, I am trying to follow the GSRD for booting from flash here: https://rocketboards.org/foswiki/documentation/a10gsrd161qspiboot I am using the precompiled binaries as there were m...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

One possibility is your QSPI flash chip has the information in its non-volatile configuration register to make it operate in the dual or the quad mode at power-up.

This would make the chip only respond to 2 lane or 4 lane commands instead of the default 1 lane command, therefore it would explain the ID of 0xFFFFFFFF.

If that's the case, it means Quartus cannot deal with it.

You'll have to use some app to set these bit back to non dual - non-quad mode.

Regards