Program not running after power cycle

[Angelo Quattrociocchi]

[VERSION]: MCWB v6.3.2
[TOOL]: STM32CubeMX v6.13.0, STM32CubeIDE v1.11.5
[BOARD]: STEVAL-PTOOL1V1
[PROJECT]: STEVAL-PTOOL1V1_6S_SL and STEVAL-PTOOL1V1_6S_HL

When I run the STEVAL-PTOOL1V1_6S_SL project generated by STM32CubeMX, the program loads and runs as expected.   When I run the STEVAL-PTOOL1V1_6S_HL (which is just the Hall-effect version instead of the sensorless SL version), the program loads and runs when the debugger is connected, but would not run properly after a power cycle, unless I reset the chip using NRST.  Both were tested on the same PCB.

I thought the program wasn't booting, but determined that it actually was, but it just wasn't getting past some of the init functions (I think the MX_MotorControl_Init call).  If I add a delay (~1s) after the HAL_Init() and SystemClock_Config() calls, before the other peripheral init calls are made, the program runs normally after a reboot for the most part.  I still see some times where it doesn't though.

I compared the two projects, and other than the obvious differences in motor control code, I don't see any differences in how the clocks are initialized, or anything in the motor library that I would think should cause this difference.

What is different about the HL version that would prevent it from getting past the init functions compared to the SL version?

Thanks,

Angelo

[Angelo Quattrociocchi · Accepted solution]

I found the issue, which was not related to the MX_MotorControl_Init() call, but actually in MX_NVIC_Init().  I turns out the UART IRQ was causing the behavior, so disabling that fixed it.  Why did the other version not do it? It turns out it did, but I already discovered the same problem in the SL version long ago and forgot about it. :(