How to get SWD Flash programming work on STM32G071KB

[rolfmyhre]

I use ST-Link/V2, Segger J-Link and Segger Flasher ARM to program STM32F303 and STM32F730R with SWDIO/SWCLK signals without problems. However, I cannot get it to work on the STM32G071KB. Is there anyone who does?

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[Mon2]

The part is supported according to the Segger website. Guessing this is more of a support question for Segger.

Please post your update.

[BCoch]

If I'm understanding things correctly, the STM32G0 defaults to ignoring the BOOT0 pin unless the flash is empty. What this means is that you'll be able to program it only a single time unless some bits in the flash option bytes are changed. Whether that can be done in the debugger before flashing the device, or whether the very first code flashed into the device needs to do this is unclear to me.

See the discussion "Has anyone gotten the boot0 pin to work on an STM32G071?" in this forum, and RM0444 section 2.5 Boot configuration, especially Table 3. Boot modes.