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Associate
October 12, 2025
Question

New to stm32 need help with original blue pill and original vtlink3set or StLink v2 original

  • October 12, 2025
  • 2 replies
  • 250 views

I am slowly following along with the user guides and used the software IDE from ST to create a blinker program of the onboard LED. That worked when connected to the ST-Link V2, and it was easy to find the correct pins, but I have the ST-Link V3 set, and I can't tell which pins to use to connect to the blue pill. I have it connected to the MB1440c. So I don't know if i can connect directly to the Blue Pill connectors or if I have to connect to the Blue Pill pins directly. Either way, I would like to overcome this last part. With the VLink 2, I couldn't upload to the Blue Pill, as it gave the 'unable to get to the core ID ST-Link error (DEV_TARGET_CMD_ERR)', and I haven't got that far with the V3 set due to connection confusion.

 

Help would be very much appreciated, as I am going around in circles with documentation.

2 replies

PB21ukAuthor
Associate
October 12, 2025

Ps I noticed that when the v3 is connected to the pc it opend up a folder as if it were a drive.

TDK
Super User
October 12, 2025

The manual for the ST-Link V3 will show the pinout for the connector.

STLINK-V3SET debugger/programmer for STM8 and STM32 - User manual

You need to connect GND, SWDIO, SWCLK and VCC.

TDK_0-1760286362730.png

 

Programmers may not work correctly with boards with counterfeit chips, which 99% of the blue pill boards have, especially when using STM32CubeIDE.

 

The board needs powered separately--the programmer does not typically provide power.

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PB21ukAuthor
Associate
October 12, 2025

I bought it from Amazon so checked the chip and it has an x on it which I believe denotes a genuine product. Thank you for that I will have a go now.