B-L475E-IOT01A2 does not emulate STlink V2 upon power on, but red and green LED are present

[AAnth.1]

Hi

I am a little bit lost on this particular discovery board. I connect it via CN7 (STLink V2 connector), and jumper settings are as supposed. The user guide says that LD6 should be red, and LD5 should be green. LD6 blinks red, and LD5 is constantly green.

However, my STLink does not emulate and does not show up in the device manager. STM32CubeProgrammer does not recognize any STLink, either.

So even though I am having power attached to my board, the STLink does not emulate.

Any ideas what I am doing wrong? Isn't the STM32F103 (the STLink) supposed to be preprogrammed, so that I can flash the actual MCU on the discovery board?

Thank you,

[Tesla DeLorean · Accepted solution]

Make sure you're using a proper USB cable, not a charging cable.

Make sure you're using the right USB connector

Check you're not shorting out the headers on the back on the bench, etc.

[AAnth.1]

Hi,

Thank you. The USB cable I used was the issue. Changing it to another one solved the problem.

Thank you,