Skip to main content
Associate III
June 24, 2026
Question

Want to convert stlink /v3 isol to normal stlink/v2

  • June 24, 2026
  • 2 replies
  • 14 views

I am using an STLINK‑V3ISOL and need compatibility with a setup/documentation that specifies ST‑LINK/V2.

Is there any jumper setting, hardware configuration, or firmware option that allows the STLINK‑V3ISOL to operate as an ST‑LINK/V2 device?

If not, is there a recommended adapter or pin mapping to make the V3ISOL interface compatible with a V2 connector/pinout for SWD/JTAG debugging?

Any guidance or experience would be appreciated.

2 replies

Andrew Neil
Super User
June 24, 2026

I am using an STLINK‑V3ISOL 

I’v never heard of any such product - Did you mean ST-LINK/V2-ISOL ?

 

No, there is no option to convert ST-LINK/V2-ISOL to plain ST-LINK/V2

 

An ST-LINK/V2 (or V3) isn’t expensive …

https://www.st.com/en/development-tools/hardware-debugger-and-programmer-tools-for-stm32/products.html

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
Associate III
June 24, 2026

B-STLINK-ISOL | Tool - STMicroelectronics
please check the above link for STLINK V3 to have extension 

Andrew Neil
Super User
June 24, 2026

As that page says:

The B-STLINK-ISOL board is an additional module for STLINK-V3SET

You fit it to the STLINK-V3SET to add isolation; if you remove it, you remove the isolation.

 

It’s not an “STLINK‑V3ISOL”.

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.