2025-09-11 9:51 AM
I try to connect by usb cable via stm32cubeprogrammer to new board but windows not see any st-link interface. older st-link v2 work fine but this on boad interfave not work.
Com's led light on green and red colour. led 5VLD12 on green display work - whats wrong ?
2025-09-11 5:54 PM
Hello @tomee and welcome to the Community,
Did you try update the ST-Link firmware to the latest version and using STM32CubeProgrammer?
Please check the tips shared in this article: How to solve connection errors when connecting and programming the STM32 target board.
2025-09-11 9:28 PM
@Imen.D ,
Thank you for your reply.
I have the latest version of the programmer installed, but when I connect the Discovery board to my Windows system, no device is detected – the programmer also doesn’t recognize it.
However, when I connect my old ST-LINK V2 dongle, both the system and the programmer detect it without any issues. This problem only occurs with the Discovery board.
2025-09-15 12:05 AM - edited 2025-09-15 12:24 AM
Hi @tomee,
Maybe you have COM port conflicts!
Check the jumpers on the board and make sure that they are set correctly.
Did you try connecting under reset mode?