Custom ST-Link V2.1 with Integrated USB Isolator

[tpd]

Hi,
Since I don't know much neither about STM, nor electronics, I used others design to make this.
I need someone to check it thoroughly if possible, and to suggest changes, or to find errors.
I suppose that there isn't much to be changed there. This custom ST-Link V2.1 should use official firmware for ST-Link V2.0 programmer/debugger.
You'll find attached project in KiCad and description of it.
Best regards and thanks,
tpd

[AScha.3]

Hi,

>This custom ST-Link V2.1 should use official firmware for ST-Link V2.0 programmer/debugger.

The firmware is on the st-link by STM. No other source.

But just buy the isolated V2 or V3 , the only legal way:

https://www.st.com/en/development-tools/b-stlink-isol.html#sample-buy

https://www.mouser.de/ProductDetail/STMicroelectronics/B-STLINK-ISOL?qs=sGAEpiMZZMuqBwn8WqcFUj1SFkunHY10sAm8L%252BOALehpTBZ5fq34sQ%3D%3D

 

+

https://www.mouser.de/ProductDetail/STMicroelectronics/STLINK-V3SET?qs=sGAEpiMZZMuqBwn8WqcFUj2aNd7i9W7uzHMzYy6qD5f5R5n3HCQ2Rg%3D%3D

 

or V2 , at mouser:

https://www.mouser.de/ProductDetail/STMicroelectronics/ST-LINK-V2-ISOL?qs=19rwF8CI%252BwmRqTUzxHKfrw%3D%3D

 

[Andrew Neil]

---

@tpd wrote:

Since I don't know much neither about STM, nor electronics

---

Especially given that, do as @AScha.3 said - just buy a genuine one!

[tpd]

That's not te plan, sorry to disappoint you.

[Andrew Neil]

I think you're the one that's going to be disappointed!

As @AScha.3 said, the firmware is closed - it is not available for you (or anyone other than ST) to use.

 

If you really want to DIY, here are some open options:

CMSIS-DAP

Black Magic

 

[TDK]

You can buy a nucleo board or something else with an ST-Link chip/firmware on it and transplant that to your board.

 

Could also consider using existing isolated programmers.

B-STLINK-ISOL | Tool - STMicroelectronics

 

Can't open KiCAD but if you post PDF of schematic I'll take a look.

[tpd]

OK, let's assume that we're finished. Thanks, but I don't need any more help.