ISPJUNO - Portable ISP Programmer - User Guide V0.84 – 17/04/20
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3.6 PC USB port power via programmer USB port
It is possible (but not recommended) to power the programmer via the USB port of a PC.
Instructions:
•
Ensure the the ISP cable from the programmer is disconnected from any target system.
•
Plug the
'USB Type A'
connector end of the USB cable into a spare USB port on the host PC
(or powered USB hub)
•
Plug the
'mini-USB connector'
end of the USB cable into programmer.
•
The programmer should power up and show text on the display.
The USB cable specification is shown below….
Important note:
This method of powering the programmer may prove to be unreliable on many PCs due to the high
current drawn from the USB port from the programmer. It is therefore recommended that this method
of powering the programmer is only used for uploading projects and not for actual target device
programming.
