imxrt1020-evk¶
How to use U-Boot on NXP i.MXRT1020 EVK¶
Build U-Boot for i.MXRT1020 EVK:
$ make mrproper
$ make imxrt1020-evk_defconfig
$ make
This will generate the SPL image called SPL and the u-boot.img.
Flash the SPL image into the micro SD card:
$sudo dd if=SPL of=/dev/sdX bs=1k seek=1 conv=notrunc; sync
Flash the u-boot.img image into the micro SD card:
$sudo dd if=u-boot.img of=/dev/sdX bs=1k seek=128 conv=notrunc; sync
Jumper settings:
SW8: 0 1 1 0
where 0 means bottom position and 1 means top position (from the switch label numbers reference).
Connect the USB cable between the EVK and the PC for the console. The USB console connector is the one close the ethernet connector
Insert the micro SD card in the board, power it up and U-Boot messages should come up.