HardFault in the workshop on blue thooght with 03-STM32W-WS__How_to_add_BLE_functionality_V2.2. I can turn on and off the blue led. When I press button 1, the cortexM4 goes well in the interrupt routine: void HAL_GPIO_EXTI_Callback.

After the Return instruction, the Cortex M goes into Hardflault.

I use the STM32CubeIder 1.5.1.. It uses sequencer.c. I attach two screen prints:

The:void HAL_GPIO_EXTI_Callback, where there is a breakpoint

and that of the fault analyzer:

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