How to activate bootloader on STM32G030J6 in SO8 package?

[Stastny.Petr]

Hello, I made a board with STM32G030J6 in SO8 package. There is not much pins so I need to use UART bootloader. Problem is that BOOT0 is on the same pin as USART.

I have USB-3V3_UART so I connect BOOT0 to 3V3 first, start the power supply, then I reconnect BOOT0 to UART_RX on USB-3V3_UART board, start Flash Loader Demonstrator SW, choose the correct COM but no connection.

The schematic is attached. Please can you share what is the correct way of bootloader running with UART?

Thank you

[Simon.T]

Hello,

You use the wrong pins for the USART bootloader.

It's the pin PA9 and PA10 (page 222 of the AN2606) or you can also have a look on this thread :Using UART bootloader on STM32G030J6

Best regards,

Simon