Not waking up from stop3 mode, when code is flashed using v2.12.0 of STMCubeprogrammer

[mohan-ltts]

I am working with STM32 U575/U5A5 series of STM32 controllers in low power mode. I have programmed the controller to enter into Stop 3 mode and wake from stop3 mode based on wakeup Pin(High on PF2). once immediately flashing hex file into controller using STM32CubeProgrammer(v2.12.0), Controller is entering in stop3 mode but it is not waking up from stop3 mode even after low to high transistion on wakeUp pin(PF2). If I power cycle the board(remove the power and connect it back), it is working as expected enterning into stop mode 3 and waking up from stop mode 3 on low to high transistion on wakeUp pin(PF2) all the time and also if we use STM32CubeProgrammer(v2.17.0) then also it is working as expected power cycle is not required

The question here is why power cycle is required for the first time if we flash using v2.12.0 and not required when we flash using v2.17.0?

[STTwo-32]

Hello @mohan-ltts 

I don't know why you are facing such behavior. But, to avoid any problem, we Always recommand to use the last version of the tool (STM32CubeProgrammer V2.17.0) to avoid any potentiel problems that may have been detected on previous versions and solved on the Current one.

Best answer.

STTwo-32