2026-01-17 8:36 AM
I have worked with ST-LINK/2 on Windows 10 for several years. I must upgrade to Windows 11 because Windows 10 support ended a few months ago. Today, I tried to program the WIO E5 Mini microcontroller, but I found it's impossible because there's no driver for it on my computer.
I found some information that I should install version 9 of that driver. I downloaded it from the original STM source and ran it, but nothing changed. Is till don't see this driver among my devices. Installation ended without any error.
Is there anybody who can point out what I am missing?
2026-01-17 10:20 AM
As YOU can see on the CubeProgrammer :
NO st-link connected.
So: you have a st-link at all ? connect it to USB.
2026-01-17 10:29 AM
Here are the possibilities:
If nothing happens in device manager when the device is connected, likely the cable is bad.
2026-01-17 10:36 AM
2026-01-17 11:29 AM
I have used the last working pin connections between ST-LINK/2 device and the WIO device, and for now, I'm a little bit closer, I think.
I had such messages earlier, and I recall that there is some kind of magic how to mange it:
20:17:58 : ST-LINK SN : 50FF6B067182575134150187
20:17:58 : ST-LINK FW : V2J45S7
20:17:58 : Board : --
20:17:58 : Voltage : 0.00V
20:17:58 : Error: Unable to get core ID
20:17:58 : Error: No STM32 target found! If your product embeds Debug Authentication, please perform a discovery using Debug Authentication
I don't understand how there can be such a small voltage measured by the ST-LINK/2 device. I checked the connections between devices twice, and everything looks fine.
2026-01-17 11:34 AM - edited 2026-01-17 11:34 AM
>Voltage : 0.00V
means -> you have no power (3v3) at the target, your wio...
connect the 3v3 to wio VDD.
2026-01-17 11:45 AM - edited 2026-01-17 11:46 AM
Pins look connected properly. ST-LINK/2 VCC pins are 1 & 2. GND is the green cable.
I have used such connections earlier.
Do you see something wrong?
2026-01-17 12:03 PM
ST-link V2 giving no power...VDD connection is just for measuring the target voltage.
So give some 3v3 to the ...target. st-link will show then this voltage.
2026-01-17 12:08 PM - edited 2026-01-17 12:11 PM
...if this is correct: pin 19 giving 3v3 , pin 1 is for checking the voltage (this it shows then)
from manual:
2026-01-17 12:32 PM
My ST-LINK/2 is totally destroyed. I measured the voltage between 1 & 2 pins and pin 20 (or any other), and I got 0V.
So I changed my device to ST-LINK/2 mini, and for now, the voltage on the device has the right value: 3.26V,
So I pressed the reset button on the device, and having pressed it, I pressed the Connect button on the IDECubeProgrammer, and voila, it works now.
And I was able to reprogram my WIO device.
Thanks for all supporting me in this Return Back operation :)
2026-01-17 12:50 PM
I know it, and I looked into it, but my ST-LINK simply doesnt't work. When I switched to the mini version, everything started working.