AnsweredAssumed Answered

QSPI Booting relocation

Question asked by samsaprunoff on Sep 12, 2019
Latest reply on Nov 15, 2019 by samsaprunoff

Good day All,

I am working on a iMXRT1021 custom board that is based upon the RT1021 EVK with the exception that I would like to connect the QSPI Flash to an alternate FlexSPI port.  On page 283 of the reference manual it looks like the Rom Bootloader will load from both the FlexSPI "B" and "A" ports, but I cannot find out how to ensure that the system looks to FlexSPI B port.  My question is how does the Bootloader know which FlexSPI port to boot from?


Also, the reason I wish to move the QSPI flash to the "B" port, is because I wish to use Uarts 2 and 4 and they occupy the same pins as FlexSPI A.


Thanks in advance!