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

kevin1971
Associate II

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

 

21 REPLIES 21
Peter BENSCH
ST Employee

Welcome @kevin1971, to the community!

Which software and settings did you use for the firmware upgrade?
Can you please also upload a photo of your ST-LINK/V2 here?

Regards
/Peter

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kevin1971
Associate II

Hi.

Below is the image which I have used.

st-link.PNG

utility.PNG

try with stm32CubeProgrammer . (st-link utility is outdated.)

If you feel a post has answered your question, please click "Accept as Solution".
kevin1971
Associate II

Hi.

I tried to program in the cubeISE using above st-link v2, the error message is "no target device found".

In this regard, if i use the stm32CubeProgrammer, will it work to program?

 

Thank you.

BR

 

Peter BENSCH
ST Employee

You have used the ST-LINK utility, which is long out of date and on NRND (Not Recommended for New Designs). The firmware is also outdated and should be updated with STM32CubeProg.

Regards
/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
kevin1971
Associate II

Hi

 

Below is the upgrade using CubeProgrammer after install it.

upgrade.PNG

 

However,

If i tried to program with connect, below is error message which i got.

 

connect.PNG

 

Thank advance

BR

 

so st-link working now. ok.

but target shows 0 V only - now power on target ! (or you didnt connect VDD ( 3,3V )to st-link .

connect 3,3 V to target !

If you feel a post has answered your question, please click "Accept as Solution".

Show how this is connected to your target. Needs VCC, GND, SWDIO, SWCLK minimum.

This type of ST-LINK/V2 does NOT provide a COM Port / VCP

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kevin1971
Associate II

Powre is up with 3.07V. however, no stm32 target found as below image.

power.PNG

My SWIO, SWCLK, VDD, RST as below schematic. 

VDD : 1

SWIO : 7

SWCLK : 9

RESET : 15

GND : 4

ST.PNG

 

 

 

 

 

Thanks in advance.

Regards