Atmel ICE "Read voltage -5.0v"

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I used Atmel ICE on Ubuntu 20.04 with make and avrdude, then when I used it in Microchip Studio 7 on Windows 10, it couldn't be attached, when I altered to Atmel Studio 7 on Windows 10, it could be identified by it shown:

 

 

and the Red LED on ICE was opened, the green on never lighted. Ask for solution...

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Last Edited: Fri. Apr 9, 2021 - 12:54 AM
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How are you powering your Atmega328P ? Check the wiring of atmel ICE, -5V suggests the VCC and GND of atmel ICE are swapped.

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Reverse your 2x3 ISP connector, it's on backwards!

 

 

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ki0bk wrote:

Reverse your 2x3 ISP connector, it's on backwards!

 

Right!