About emf97

emf97 · 2025-01-25

Hi,I'm working on a STM32G030C8T6 based personal project and recently done a revision 2 to fix some annoyances and add some status LEDs. Programming and debugging is done via a STLink V3 and the SWD. I've encountered twice the same strange behaviour,...

emf97 · 2025-01-26

> observe if the MCU spontaneously goes through a resetThis has been particularly elusive: entering debug mode in STM32CubeIDE somehow make the MCU undergo a reset event, which I don't observe if I just let the board alone. I've done some further inv...

emf97 · 2025-01-26

>When your firmware is running, you may attach SWD to the running code without a reset (hot plug). If this succeeds, you regain control over your firmware.It worked, STM32CubeProgrammer successfully connected this way. At least I know the chips aren'...

emf97 · 2025-01-26

>Have you use it in app?If you're referring to low power mode, no I'm not using it. >Is some watchdog used in app or activated in options? Since the firmware doesn't touch them they should still be the factory value, so no watchdog enabled neither I'...

emf97 · 2025-01-26

>Do you use BOOT0 pin / NRST? How are these pins wired?In this particular chip BOOT0 is aliased with SWCLK, so it's wired to the STLink as such. As the datasheet says:> Upon reset, these pins are configured as SW debug alternate functions, and the in...

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