Nucleo STML031K6: Cannot find pin PA13(SYS_SWDIO) and PA14(SYS_SWCLK)

duybienle · ‎2016-08-25

Posted on August 25, 2016 at 13:33

Hi

I'm using Nucleo STM32L031K6 for my project and I want to use an external debugger for the board instead of the internal debugger provided on the board.

I looked at the data sheet of this STML031 and it says that the pins SWDIO and SWCLK are corresponding to the pins PA13 and PA14 on the board respectively. However I could not find where are these two pins on the STML031K6 board?

Also The MCU package is 32-pins, but there are only 30 pins on the board.

Where are these two PA13(SWDIO) and PA14(SWCLK) pins?

Thanks,

Bien

Walid FTITI_O · ‎2016-08-25

Posted on August 25, 2016 at 14:31

Hi le.bien,

Both SWD pin are connected to the ST-Link SWD connector CN2. That should be done through both test-points in the Up right of the board. Take a look to the figure 3 and shematics of user manual

http://www.st.com/content/ccc/resource/technical/document/user_manual/e3/0e/88/05/e8/74/43/a0/DM00231744.pdf/files/DM00231744.pdf/jcr:content/translations/en.DM00231744.pdf

for clarification.

-Hannibal-