Could it be that the pwr and the supply from the PICkit dont like each
other. I always but a small diode (1N4148) between pwr and the 10K
resistor. See here: http://www.time-tech.eu/Piggy.jpg

Harry
> -----Oorspronkelijk bericht-----
> Van: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] 
> Namens solarwind
> Verzonden: woensdag 12 augustus 2009 8:21
> Aan: PICLIST
> Onderwerp: [PIC] My simple dev board is not working
> 
> I finished constructing my very simple PCB and PICKIT 2 is 
> not working with it. When I plug it in, PICKIT2 says:
> 
> PICKIT2 VPP voltage level error.
> Check  target & retry operation.
> 
> So I rebuilt the exact circuit on a breadboard and it worked.
> 
> Here is the schematic: 
> http://img18.imageshack.us/img18/617/schematic.png
> 
> Here is the board: http://img35.imageshack.us/img35/6794/boardq.png
> 
> The only variations I did were that I changed the value of 
> the polarized capacitor around (1 uF, 100 uF) and changed the 
> value of the resistors around (1K, 10K) during breadboard 
> prototyping and it didn't make a difference and everything 
> still worked.
> 
> On the PCB, I replaced the 470 ohm resistor with a 1K and the 
> 10 uF electrolytic cap with a 1 uF electrolytic cap. On a 
> breadboard, these values worked, so I don't know why the PCB 
> one isn't working.
> 
> Any ideas?
> 
> -- [ solarwind ] -- http://solar-blogg.blogspot.com/
> --
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