Re: Running Hello World for Dragino-LSN50 on B-L072Z-LRWAN1 Dicovery Board

Erwan Gouriou


Looking to B-L072Z-LRWAN1 user manual, it seems that you can get ST-Link VCP using USART2,
Did you changed the console settings to match this configuration ?

Then, fortunately, both boards share the same pin mapping on this UART,
so on this point you should be fine.

Last, one point to check would be the clock settings;
Dragino uses HSI driven PLL, does this fit with B-L072Z-LRWAN1?


On Thu, 20 Sep 2018 at 22:16, Aleksandr Makarov <seems.deviant@...> wrote:

I am trying to run Hello World application built for Dragino-LSN50 on a
B-L072Z-LRWAN1 Dicovery Board. Those two boards both are SM32L0-based
and share exactly the same MCU model - SMT32L072CZY.

The build process and device flashing work fine, however I can't see a
"Hello World!" print on a COM terminal after a reset.

A working USART port is the only peripheral I care for now. The USART
pin configuration for Dragino LSN50 board should be suitable for L072Z-
LRWAN1 as well, though it is not working.

Please advice.

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