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the windows computer recognized the st-link v2 as universal serial bus instead virtual port

kevin1971
Associate II

‎2023-10-23 03:40 AM

Hi.

After firmware upgrade for st-link v2, windows computer recognized the st-link as universal serial bus instead of virtual com port. whenever i try to program to MCU, there is error like a "No target device found".

How can I solve it?

Below image is the device manager to be recognized as Universal serial bus. there is no PORT.

 

ST-Link V2.PNG

 

Thank advance.

BR

 

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21 REPLIES 21
Tesla DeLorean
Guru
In response to kevin1971

‎2023-10-26 02:51 AM

Has this ST-LINK successful connected with any MCU ?

The connectivity and functionality of this MCU looks to be non-functional. Can you connect via the System Loader with BOOT0 High? Say, getting the UART protocol to respond to interaction? Has the device been set into a read protect mode? Disabling th SWD?

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kevin1971
Associate II
In response to Tesla DeLorean

‎2023-10-26 02:59 AM

I wired boot0 with gnd. It didn’t connect with mcu. Not read protection mode.

i flashed successfully this board before firmware upgrade for st-link v2. After this I can’t

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