GTP Programmer LITE

[blueroomelectronics]

Yes to 1

The 2.7k forms a voltage divider. If it's too high VPP will be calculated incorrectly.

 

[senchen]

2.7 k

if its a voltage divider .. then what is the complement of the 2.7 k ... is it 4.7K (i guess)?
if its so can i design another voltage divider using 3.3k .. then its complement has to be 5.7k (if my calc is right ..) .... will it b ok ??

 

[blueroomelectronics]

That should work. As long as the total is less than 10K and the ratios are the same.

 

[theo92]

Really I used 3.3K their in earlier versions. Now I've have the 2.2K baby.
Nothing was wrong in both.
But my suggestion is to make the full PICKit2 or Bill's magicboard Junebug.
If you buy a Junebug, you're ready for big leagues. But....
If you want a PCB layput, I can give you my own, which I'm using for 3months approx. It is easy simple singlr layer and pretty much home-makable.

 

[senchen]

i use a pickit2 lite with mplab ... when i attempt to connect the pickit2, the os is recognised but i get an error message stating that the Vdd is 2.29 Volts which is out of the range (3 to 5.5 volts) ....

what might be the problem ???.. i use a 650 uH inductor ..