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The debugger cannot connect to the Target

03-Aug-2021

Possible solutions: 

1. Make sure that the power supply is applied to the target JTAG connector.

Refer to Setting debug interface voltage levels (Vref).  


2. Configure JTAG Scan Speed.

Open Hardware menu / CPU Options / JTAG.  


3. NXP/ST Power Architecture: Device may be locked 

Either factory protected or locked later on by writing to the Shadow/UTEST memory. Refer to  Use password option in Hardware menu / CPU Options / SoC tab to unlock it. You will need a valid password to unlock the device.


4. See also Initial debug connection fails article.



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