Application cross two Bank, possible?

[jiangpen]

For stm32h7b3 , there are two Bank of flash, and each 1M, We are designing a big application which code size may exceed 1m.

So may I know if possible to ​use two bank for this application? Any limitations for it?

Or if possible to put application to external nor flash and xip it. Is still possible to have secure boot when doing xip in external flash?

Thanks a lot​

[Pavel A.]

Yes, possible.

[Bouraoui Chemli]

Hi @jiangpen​ 

You can use application cross two bank. However, since the application run from the two banks you will loose the read-while-write feature and dual bank feature.

Bouraoui

[Bouraoui Chemli]

Hi @jiangpen​ 

"if possible to put application to external nor flash and xip it. Is still possible to have secure boot when doing xip in external flash?"

==> You can have a secure boot from the flash, then jump to the application in the external memory to make the xip, but you can not boot on an external memory.

Bouraoui