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RShal4's avatar
RShal4
Icon for Occasional Contributor rankOccasional Contributor
7 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
7 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

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

Hello JonSnow,

On trying to use the same IP with 512 qspi we can reach only 512M OK, but the qspi is 1G, we then tried to change the module in qsys to N25Q00AA1G1240 (no other 1G MT25Q option is available, but then on compile we get error

instantiated_with_wrong_parameters_error_see_comment_above becuase ADDR_WIDTH != 24,

Trying to use generic quad controller II, as you suggested, we get errors that "COMPOSITION_CALLBACK" is not supported with our quartus version (unfortunately we can't upgrade above 15.1)

Is there any idea how we can handle this ?

Thanks!

ran