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STMicroelectronics / STM32CubeF4

STM32Cube MCU Full Package for the STM32F4 series - (HAL + LL Drivers, CMSIS Core, CMSIS Device, MW libraries plus a set of Projects running on all boards provided by ST (Nucleo, Evaluation and Discovery Kits))
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__HAL_RCC_APB2_FORCE_RESET cause mcu reset! #158

Closed Krislanqx closed 11 months ago

Krislanqx commented 1 year ago

Caution The Issues are strictly limited for the reporting of problem encountered with the software provided in this project. For any other problem related to the STM32 product, the performance, the hardware characteristics and boards, the tools the environment in general, please post a topic in the ST Community/STM32 MCUs forum.

Describe the set-up

Describe the bug

define __HAL_RCC_APB2_FORCE_RESET() (RCC->APB2RSTR = 0xFFFFFFFFU)

How To Reproduce Indicate the global behavior of your application project A small FLASH programmer is running in internal RAM (DTCMRAM @ 0x20000000). After it programs the external flash it unloads itself and calls HAL_DeInit() which calls __HAL_RCC_APB2_FORCE_RESET(). At this point the microprocessor resets.

The modules that you suspect to be the cause of the problem (Driver, BSP, MW ...) The __HAL_RCC_APB2_FORCE_RESET() resides in stm32f4xx_hal_rcc.h

The use case that generates the problem Calling the HAL_DeInit() when the program prepares to unload itself.

How we can reproduce the problem I don't know all conditions which makes the function fail. I suspect it has something to do with calling the function from internal RAM. I don't think you need to reproduce the problem. It is clearly a bug (see below) which should be rectified.

Additional context The problem may be the same as the link. Please refer to it. https://github.com/STMicroelectronics/STM32CubeH7/issues/19

Screenshots None

RJMSTM commented 1 year ago

Hello @Krislanqx,

Thank you for this report. We will get back to you as soon as we analyze it further. This may take some time. Thank you for your comprehension.

With regards,

Krislanqx commented 1 year ago

@RJMSTM @TOUNSTM According to the RM0090 reference manual，Bits 31:8 must be kept at reset value and should not be set. But in the STM32CubeF4, RCC_AHB2RSTR = 0xFFFFFFFFU. image

HBOSTM commented 1 year ago

ST Internal Reference: 158724

Krislanqx commented 1 year ago

@HBOSTM Hi，HBOSTM: I would like to know when this issue can be closed and new version release.

TOUNSTM commented 11 months ago

Hello @Krislanqx,

The issue you reported has been fixed in the frame of version v1.28.0 of the STM32CubeF4 published recently on GitHub. Thank you again for having reported.

With regards,