stm32L073 uart2 flash loader

[Jin ho An]

Posted on December 13, 2017 at 08:23

I have a nucleo-L073RZ board.

Boot0 port, Flash loader is being used to download the firmware.

Connecting with USART1 (PA9, PA10) works well.

However, it can not be connected to USART2 (PA2, PA3).

In the AN2606 document, USART2 is supposed to be done. What is the problem?

[AvaTar]

Posted on December 14, 2017 at 15:20

Because they are connected to the ST-Link, for the VCP connection ?

I would try removing SB13 and SB14.

[Jin ho An]

Posted on December 20, 2017 at 06:33

It was solved with your help.

Thank you.