How to use the potyo2, ICD2 clone?

I try to built the potyo2. Actually, I don't understand how to use the potyo2. Does the potyo2 need the external power supply to program and debug? How does the external power supply apply on the potyo2? Can teach me and give me an example on program and debug the PIC16f876A using potyo2?Thank you.

help on ICD2 clone

hi yahootew3000.
The ICD2 (potyo 2) does not need an external source, but you can supply your target board with an external source (3.3v or 5V) and do not forget to uncheck the "Power target from ICD2" checkbox in MPLAB.
The checkbox enable the “USB powered” only for the target device and is implement for program 3.3v devices. The ICD2 always is USB powered.
The “potyo 2” works as an original ICD2, then you can download the ICD2 manual from microchip web site.

Re: help on ICD2 clone

folks said:

hi yahootew3000.
The ICD2 (potyo 2) does not need an external source, but you can supply your target board with an external source (3.3v or 5V) and do not forget to uncheck the "Power target from ICD2" checkbox in MPLAB.
The checkbox enable the “USB powered” only for the target device and is implement for program 3.3v devices. The ICD2 always is USB powered.
The “potyo 2” works as an original ICD2, then you can download the ICD2 manual from microchip web site.

Click to expand...

i try to program the 16F873A using the notebook, and my notebook only have USB port. i wonder whether the USB port can supply enough power to prorgam the device. last time i was using the JDM programmer(program using desktop), so the MCLR have to supply with >10V, that's why i scare that the ICD2 cannot supply enough current if power directly from USB.
Is that mean that I can program the 16F876A(5V) direct without external power source?Or, i need to supply an external 5V to the VDD? Or how to apply the external power source?

Re: help on ICD2 clone

yahootew3000 said:

i try to program the 16F873A using the notebook, and my notebook only have USB port. i wonder whether the USB port can supply enough power to prorgam the device. last time i was using the JDM programmer(program using desktop), so the MCLR have to supply with >10V, that's why i scare that the ICD2 cannot supply enough current if power directly from USB.
Is that mean that I can program the 16F876A(5V) direct without external power source?Or, i need to supply an external 5V to the VDD? Or how to apply the external power source?

Click to expand...

Yes the USB can power up to 500 mA, this is sufficient to power the ICD2 and your 16f873a. MCLR pin do not drain too much current because is HI-Z.
The best choice for program a 5v device is power it by the USB port, for major information how to program using both configurations see the ICD2 manual from microchip web site.