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RShal4's avatar
RShal4
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

write to flash return OK, but does nothing !

Hello, We are trying to access qspi (MT25QL512ABB8E12), which is the boot device. Booting the application works just fine. We also see that erase and read is functional from drivers (reading the se...
RShal4's avatar
RShal4
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Hi JonSnow,

We upgraded to quartus 18.1, but the behavior is the same.

Only after changing I/O access from Quad to Standard, we managed to write info flash !

But we need the bandwidth of quad access...

More info: We use "altera flash controller" for our boot qspi.

Best Regards,

ranran

ShafiqY_Intel's avatar
ShafiqY_Intel
Icon for Frequent Contributor rankFrequent Contributor
6 years ago

Hi RShal4,

Can you try to use "Quad SPI controller II" with MT25Q device?

Sometime Quad SPI controller I have some issue with MT25Q device. However, Quad SPI controller II is working with MT25Q with direct access.

Kindly try this out. Please let me know the results.

Thanks.