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bob_bitchen's avatar
bob_bitchen
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

NIOS SDK tools don't see memory region

We use an Arrow LPDDR controller from the BeMicro designs back with Quartus 12. I have a CIV E design in Quartus 21 lite with a NIOS II F. In platform designer, the NIOS vector selection drop-do...
EBERLAZARE_I_Intel's avatar
EBERLAZARE_I_Intel
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hi,


I confirm with our internal team, that the Reset vector doesn't support external RAM, it must be a non-volatile memory. So you need to set it to the EPCQ, you need to follow the steps for EPCQ below to replace the old EPCQ IP with the Intel FPGA Serial Flash Controller II for your new designs:

https://www.intel.com/content/www/us/en/docs/programmable/683689/current/processor-booting-from-epcq-flash.html


Also, in the newer Quartus, you do no require the Pipeline bridge, you can direct connect as shown above example.


Your application can be stored in the RAM.


Supported memories as reset vectors:

https://www.intel.com/content/www/us/en/docs/programmable/683689/current/summary-of-processor-vector-configurations.html