RT1064 EVK

[vishwas_br]

We are using RT1064 in Internal boot mode and MCUXpresso Secure Provisioning tool. After writing image (bootloader file) is successful and re-energizing the board, the device is in bootloader mode. Further, flashing is not possible, connection is not possible. Programming is possible only once and then the chip needs to be erased using debugger, in order to go forward. Is there an option available or any software to erase without using debugger or currently present in MCUXpresso Secure Provisioning tool? Is there any reset condition available for flashing operation? Kindly help

[kerryzhou]

Hi @vishwas_br ,

  Reset condition to do the erase is not OK.

  Your issue is caused by the invalid app is downloaded to the flash, the the boot is not work, the core can't find the valid entrypoint.

  The solution is do the flash erase, normally, we use the serial download mode to do the mass erase, or the debugger do the mass erase.

  If you use the JLINK, you also can use the JLINK commander, erase all.

  Anyway, still need the debugger, or the serial download mode, then the blhost will help you, blhost also be used in the SPT tool, that's why you make it works, you also can use the MCUbootutility tool in serail download mode.

  Wish it helps you!

Best Regards,

Kerry