1*4882a593SmuzhiyunHow to use U-Boot on Engicam Is.IoT MX6UL Starter Kit: 2*4882a593Smuzhiyun----------------------------------------------------- 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun- Configure U-Boot for Engicam Is.IoT MX6UL 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun$ make mrproper 7*4882a593Smuzhiyun$ make imx6ul_isiot_mmc_defconfig 8*4882a593Smuzhiyun$ make 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunThis will generate the SPL image called SPL and the u-boot-dtb.img. 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun- Flash the SPL image into the micro SD card: 13*4882a593Smuzhiyun 14*4882a593Smuzhiyunsudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun- Flash the u-boot-dtb.img image into the micro SD card: 17*4882a593Smuzhiyun 18*4882a593Smuzhiyunsudo dd if=u-boot-dtb.img of=/dev/mmcblk0 bs=1k seek=69; sync 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun- Jumper settings: 21*4882a593Smuzhiyun 22*4882a593SmuzhiyunMMC Boot: JM3 Closed 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun- Connect the Serial cable between the Starter Kit and the PC for the console. 25*4882a593Smuzhiyun(J28 is the Linux Serial console connector) 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun- Insert the micro SD card in the board, power it up and U-Boot messages should 28*4882a593Smuzhiyuncome up. 29