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]

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