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Bootelf on IMX6.UL

Question asked by ken wei on Mar 10, 2019
Latest reply on Sep 25, 2019 by zhang yali



    Now I am using I.MX6UL development board named "i.MX6UltraLite Evaluation Kit (EVK)" . what i did is:

1: Install SDK_2.2_MCIM6UL on my PC.

2: Build one standalone elf executable file with demo IAR project in SDK folder “C:\nxp\SDK_2.2_MCIM6UL\boards\evkmcimx6ul\driver_examples\gpt\capture”. 

2: press any key to stop auto-uboot, with uboot version  "uboot-imx-imx_v2016.03_4.1.15_2.0.0_ga".

3: load elf file via command bootelf

=> fatload mmc 1:1 0x80800000 gpt_capture.out
reading gpt_capture.out
217948 bytes read in 35 ms (5.9 MiB/s)

4:Boot elf from memory. 
=> bootelf 0x80800000


 And my question is

  1: Any idea why demo binary file execution is stuck? Assume application timer should start ticking.

  2: How to disable interrupts initialized by U-boot? I mean how to diasble intterupts before bootelf command.


Thanks for the help in advance!