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4ms / stm32mp1-baremetal

Baremetal framework and example projects for the STM32MP15x Cortex-A7 based MPU
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U-boot can't start example app, but mp1-boot can #21

Closed nettercm closed 1 year ago

nettercm commented 1 year ago

Great stuff!

I have a STM32MP157F-DK2. I built your u-boot, mp1-boot and hal_lib app.

When I follow the instructions to use u-boot to load the app, I get this error:

mmc0 is current device 55040 bytes read in 34 ms (1.5 MiB/s)

Booting kernel from Legacy Image at c2000040 ...

Image Name: stm32mp1-baremetal image Created: 2023-06-08 4:36:08 UTC Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 55040 Bytes = 53.8 KiB Load Address: c2000040 Entry Point: c2000040 Verifying Checksum ... Bad Data CRC ERROR: can't get kernel image! UBOOT>

Everything seems fine when I set up the sd card to use mp1-boot:

MP1-Boot

MPU clock: 648000000 Hz Initializing RAM Testing RAM. Booted from SD Card Loading app image... Jumping to app ABC Hello from HAL Driver! And hi to you too! 0 1 2 3 4 5

Any thoughts on why this might be happening?

danngreen commented 1 year ago

Hmm, I see the same error on my end, I'll check it out. Thanks for reporting this!

danngreen commented 1 year ago

OK, there was a bug in how the data size was calculated in uimg_header.py. I just pushed the fix in 159a01dbb983bf8051e27dd62eace1673b05eef1 Thanks for finding that!