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st-linkv3mods-adapter board

Overview

Some time ago I got the st-linkv3 downloader from somewhere. But I found that it cannot be used directly. After flipping through the manual, I found that the pin definitions of v3 are not universal. Therefore we need to make a homemade adapter board.

There are two versions of STLINK-V3. One is minis and mods. What I got is the mods version. In comparison, the mods version has a few fewer ICs and a seat on the back than the mini. There are also different ways to use minis and mods. The mini is fully functional, and the mods can be downloaded using stamp holes. Therefore, I suggest that you just buy mini. If mods want to use the seat function, they need to manually weld a seat and solder the resistor on the bottom plate. (A lump of tin will do)

Mods on the left and mini on the right

The final welded product

Burning method

Just connect it to the computer via USB, then open keil and select the appropriate downloader.

Design Files

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Update:2025-06-20 03:46:43

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