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Jiayi_H_Intel's avatar
Jiayi_H_Intel
Icon for Occasional Contributor rankOccasional Contributor
4 years ago

How to access QSPI Flash from HPS f2h interface

Hi expert, I am using Stratix 10 SoC board. And my FPGA logic needs to access flash. In my setup, HPS boot from SD card not QSPI Flash. And QSPI locate at 0xff8d2000 in HPS's map. I connect my...
aikeu's avatar
aikeu
Icon for Regular Contributor rankRegular Contributor
4 years ago

Hi Jiayi_H_Intel,


The sdm QSPI is on the FPGA side. The sf cmd we tried is one of the method to read/write from HPS side. Another method will be considering the Mailbox Client IP in your design in order to do that.

Refer to the document below for Mailbox Client IP:

https://www.intel.com/content/www/us/en/docs/programmable/683290/21-3-20-1-0/mailbox-client-fpga-ip-user-guide.html


Normally is not advisable to write on the sdm QSPI as some of the FPGA configuration data is written there while booting up from sd card for the case of Stratix 10 devices.

Anyway if you are confident that you will not overwrite those data, then probably can consider doing so for your system operation.


Thanks.

Regards,

Aik Eu