STLINK_V3 SET how to use for Custome board?

[MDeva.1]

Hello,

I am working on STM32H7 . I have custome board , I have to use the STLINK_V3 SET, which things that I need to consider for the programming through STLINK. How much vtg I have to set 3V/5V , In stm32Cube ide which setting I have to make. Can u please help me

[Tesla DeLorean]

The H7 is running at 3V or 3.3V​

SWD connection, you want SWDIO, SWCLK, NRST and GND.

Should be able to check connectivity using STM32 Cube Programmer. ​