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STM32G473RET6 Doesn't Start after Power on Until External reset

e-zeki
Associate III

Hi everyone, I started to work with G4 series. Everything was smooth with Nucleo 431RB board until I made a custom pcb withSTM32G473RE. Code is working very well after loading, debug also fine. but when I unplug the stlink and give the circuit a power off/on code doesn't start until I give it a reset with reset button. then it works fine.

I created my projects via CubeMX I saw NRST pin is a regular GPIO and there is no configuration to set it as NRST. So I leave it in Reset State.

Does anybody stumble across similar problem? or any idea what might I do wrong?

Even simple led blink has same results. Any help will be most appreciated.

Best regards,

Zeki

1 REPLY 1
Igor Cesko
ST Employee

Hi e-zeki,

Please check the option bytes setting. We newer met some problem with Nucleo-G4 board. Maybe STM32G4 is going into bootloader - check the BOOT0 pin connection.

Regards

Igor