How to connect the STlink V2 to my board

[YShko.1]

Hey,

I built a project base on the STM32 G070RB Nucleo board.

Now i want to take the cpu and design my own board for a project in my work.

My question is how to connect the STlink v2 to the CPU, because i saw in 3 diffrent resources, diffrent numbers of legs to connect.

1. PDF schematics - in the upper right corner(4 Legs)

2.Datasheet of the board(5 Legs, number 6 is not used!)

3.Datasheet of the STlink V2(20 Legs)

Can any one tell me what is the corrent way ?

[KnarfB]

> Now i want to take the cpu and design my own board

App. note "Getting started with STM32G0 Series hardware development" is a recommended reading.

GND, SWDIO, SWCLK are mandatory.

NRST optional if you want to reset the board for debugging

VDD_TARGET/Target VCC optional for detecting/measuring the board voltage/level conversion by the debug probe

SWO additional serial output for logging/tracing, not implemented in G0 series.

hth

KnarfB

[YShko.1]

Thank you for your reply!

where can i find "Getting started with STM32G0 Series hardware development" ?

[DBERG.1]

You can find it on the product page on ST website, under the tab 'Documentation'.

https://www.st.com/en/microcontrollers-microprocessors/stm32g0-series.html#documentation

But here's a direct link:

https://www.st.com/resource/en/application_note/an5096-getting-started-with-stm32g0-series-hardware-development-stmicroelectronics.pdf