STM32G0B1CETx - Issue in jumping into system bootloader

[vishwadn]

Hi,

    I am trying to jump into system bootloader but board is not getting detected in USB DFU on STM32CubeProgrammer. I tried below two methods:

1) By connecting Boot0 pin to HIGH and resetting the board and tried connecting on STM32CubeProgrammer.

2) By Jumping to system Bootloader start address from application.

In the second method I tried setting option bits manually in software and board got connected in USB DFU for one or two times only.

Let me know how can I jump to system bootloader and do application reprogramming.

Thanks,

Vishwanath Devara

[Chaima_M]

Hello @vishwadn ,

The bootloader is activated by applying Pattern 11, as detailed in Table 2 of AN2606.
Additionally, please refer to Section 3, "Boot Configuration," in AN5096 to learn how to configure the boot mode for selecting system memory.

With best regards.

[Amel NASRI]

Hi @vishwadn ,

Besides the proposals from @Chaima_M , you can refer to the article How can I use STM32CubeProgrammer to access the USB-DFU bootloader on my STM32 board?. You need to adapt it for the STM32G0 case.

-Amel