STM32F769I-Disco - no ST-Link detected

[DVito.1]

Hi guys,

I am new to STM32F769I-Disco and I‘ve got an error by trying to connect the STM to my pc.

In the STM32CubeIDE 1.4.0 I got the message: No-ST-Link detected

In ST-Link-Utility i got the same message.

ST-Link-Utility -> about: ST-Link-utility: v4.5.0; USBDriver.dll v5.1.2; ST-Link cli v3.5.

Additionaly no USB-Device is shown in my device-manger and the LD8(ST-Link connection) is blinking red. The display and so on is working well. I powered the board with usbhs and LD5 is green and LD6 is red.

Before I have worked with the same pc with STM32L0 and F1and both are ok. I’m able to connect in the IDE and in ST-Link-Utilities.

The ST-Link Debug version is 2.1.0.0.

I dont know what goes wrong.. I changed the usb cables and ports but no success.

Does anyone have an idea where the problem is ?

[Tesla DeLorean]

Make sure you're not using charging cables.

Make sure you're connecting to the STLINK USB connector.

Make sure computer doesn't have policy settings regarding USB MSC, or AV software doing same.​

[Mike_ST]

No idea,

But, please download STSW-LINK007 (ST-LINK upgrade utility) and

execute "ST-LinkUpgrade.exe -CheckVer" in a Windows Command Prompt.

CN3 has to be on "stlk" position.

if the ST-LINK chip is ok you should have a version number.

[Uwe Bonnes]

Consider also bad cable and connectors.

[DVito.1 · Accepted solution]

Thanks guys.

I got a new USB cable and changed the USB port again, but unfortunately no connection.

So I reinstalled the IDE and TouchGFX and now everything works. Maybe I did something wrong with the installation, I dont know