Skip to main content
Explorer
March 24, 2025
Solved

STM32F746G-DISCO: ST-Link Port Broken, No Exposed SWD Pins, No Boot0 Pin

  • March 24, 2025
  • 3 replies
  • 755 views

I’m working with an STM32F746G-DISCO board, and I’ve encountered an issue with the board. The ST-Link port is broken, and unfortunately, it cannot be soldered. To make matters worse, the SWD (Serial Wire Debug) pins are not exposed on the board, and there are no Boot0 pins either.

 

    This topic has been closed for replies.
    Best answer by mƎALLEm

    Unfortunately for you I don't see any other solution than trying with an external ST-LINK by soldering wires on the solder bridges SB14 to SB17.

    mALLEm_0-1742819640403.png

    3 replies

    Technical Moderator
    March 24, 2025

    Hello,

    How did you know that the STLINK is broken?

    Explorer
    March 24, 2025

    0.jpg

    mƎALLEmAnswer
    Technical Moderator
    March 24, 2025

    Unfortunately for you I don't see any other solution than trying with an external ST-LINK by soldering wires on the solder bridges SB14 to SB17.

    mALLEm_0-1742819640403.png

    Explorer
    March 24, 2025

    The solder bridges contains resistance on the board ( in the schematics it's mentioned as only solder bridge), what about them , could i solder over them ?

    Technical Moderator
    March 24, 2025

    I think they are 0 ohm resistors (I don't have the board). You need to check from your side. If yes solder over them.