Hi All
SD card firmware loading has been ported to the i.MX RT project and can be tested on the i.MX RT 1020 with binaries here:
https://www.utasker.com/iMX/RT1020.html#SDCARD_BL
Compatible with Kinetis SD card loader and documented at https://www.utasker.com/docs/uTasker/uTaskerSerialLoader.pdf
Optionally supports AES256 encrypted files for IP protection.
Regards
Mark
[uTasker project developer for Kinetis and i.MX RT]