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Problem in ICD2 with USB as it fails the Self Test

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Joven Pic

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Hi, everebody

I recently built icd2 only with usb like source supply and data transference, using only 2 pic's (18F4550 and 16F877A). I connected to PC through USB and installed the driver's correctly, until that moment all work properly. After that i open MPLAB 7.51 and turn it on with the option "MPLAB ICD 2" and next i selected "CONNECT" but show me the next message:

.. Failed Self Test. See ICD2 Settings (status tab) for details.

I check all connection in the ICD2 but all was fine.

I would like to know if somebody do this proyect and if this work properly or had to do some changes in the hardware or software.

I suppose that only i'm forgetting something important, but i don't know what.

Please help me.
 

ICD2 with USB

you can check the power supply.
 

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