Also can someone explain what is jlink Target interface voltage “VIF”
It’s an analog input, intended use is measuring the target power supply voltage. It does not provide power for the target, just measures it.
The J-Link board on the picture is definitely a clone, and Segger actively defends against clones. Considering the low price of the jlink edu mini, what is the point for a clone?
However, if the Segger driver refuses a clone, it writes something like “Faulty device”, and your error message is different. So it’s possible that the reson is not the clone, but faulty wiring, missing target power, or incorrect settings.
Did you test it using the Segger JFlash Lite program for erasing or flashing the target?
What happens, if you test the Jlink adapter using the Jlink Commander or Jlink Configurator?
My edu mini’s response:
SEGGER J-Link Commander V7. 0a (Compiled Apr 16 2021 15:34:05)
DLL version V7.00a, compiled Apr 16 2021 15:32:47
Connecting to J-Link via USB…O.K.
Firmware: J-Link EDU Mini V1 compiled Feb 18 2021 11:25:23
Hardware version: V1.00
License(s): FlashBP, GDB
Type “connect” to establish a target connection, ‘?’ for help