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August 13, 2025
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No ST-LINK detected! Please connect ST-LINK and restart the debug session.

  • August 13, 2025
  • 1 reply
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hello,

i am working on project with a stm32wle5jc and am fairly new to stm tools. all was working well but after a little break on another project it will no longer flash the board with the stm ide (1.19.0) and says "No ST-LINK detected! Please connect ST-LINK and restart the debug session.". i have an st-link/v2 connected and the ide can actually see the st-link under "help" "st-link upgrade" (i am on a macbookpro m1, which also sees the st-link under "system report", "usb")

i can flash the code i want to flash from the ide (~/workspace/<projectname>/Debug/<projectname>.elf) with the stmcubeprogrammer without any problem

i have restarted the ide, restarted the mac, switched cables, switched projects, switch boards, tried a st board nucleo board with embedded st-link (or whatever it is)... but always get the same error message

what is going on?

any help greatly appreciated!

thanks, frank

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Best answer by frb

finally! problem fixed.

found a post  on stackoverflow which solved the problem by reinstalling st-link server

fixed the problem!

1 reply

frbAuthorBest answer
Associate
August 13, 2025

finally! problem fixed.

found a post  on stackoverflow which solved the problem by reinstalling st-link server

fixed the problem!