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No St Link Detected STM32WL55JC2

BNamu.1
Associate II

Hello, I recently bought an STM32WL55JC2 board (nucleo). I have downloaded the STM32 IDE.

When I connect the card in USB directly to my pc there are three LEDS that blink successively (red green blue).

I can build my project (empty) on STM32IDE on both cores.

Except that I have the error NO ST LINK DETECTED.

I tried to change debugger but nothing to do.

I also tried to install STLINK via the ST site but it does not change.

In the USB device manager I see that "ADB interface".

In the ST folder I tried to install the STLINK driver but it does not change my error.

Should I buy a debugger in addition to the card? Thanks

 0693W00000Uoei8QAB.jpg0693W00000UoehyQAB.jpg

13 REPLIES 13

Use quality cables, not charging cables.

Avoid hubs or docking stations.

Avoid Virtual Machines.

Avoid AV and policies blocking USB MSC (Flash Sticks)​

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BNamu.1
Associate II

My STM32WL55JC2 wasn't provided with a cable so i'm using cables from my computer (headphone cables etc...)

I've tried two different cables, when ive changed and i got a STLINK V3 upgrade which failed and after that i got the same error No ST LINK detected.

My cable is directly connected to my computer case.

BNamu.1
Associate II

Well, i've tried my nucleo on an Arduino environment and it doesn't detected my board too. I guess the cable is the main problem

So you did a failed upgrade?

Is the ADB Interface device the ST-LINK/V3 ?

If it's not in Device Manager as an ST-LINK not much hope of other apps "finding" it.​

You should try STM32 Cube Programmer first.​

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BNamu.1
Associate II

Good update : i've tried with a new cable and got this error : 0693W00000Uof1KQAR.jpg0693W00000Uof1AQAR.jpgI've done this update before the error above : 0693W00000Uof2NQAR.jpg

ChahinezC
Lead

Hello @BNamu.1​,

Based on the screenshot you shared, an update is required again. You can click on "Upgrade" to update the ST-Link FW and solve the issue.

Chahinez.

@ChahinezC​ 

I have done this upgrade , i got this error now :

0693W00000Uof6AQAR.jpg

Check that it's actually usable in STM32 Cube Programmer, it's a stand-alone programmer.

This is complaining about chip level connectivity, might be due to low power modes, or interface circuitry being powered down.

Try other connectivity options, like "Connect Under Reset"

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The ST-LINK/V3 uses USB-HS it's significantly less tolerant of low quality, shielded, cables.

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