Simple Pickit2 for dspic33

[maxwang71]

dspic33 pickit2

I have a project using dspic33FJ64GP802, this is 3.3v device, I just want to a simple pickit2 to debug and programming it, so I modify the original schematic of pickit2, I remove the Vdd adjust part, I use one reg1117 3.3v to power my target board, because 3.3v device no need Vpp voltage, so I also remove that part, now the circuit is quite simple, but i am not sure whether it works propertly or not

give some suggestion please.

 

[avr_guru]

simple pickit 2

I dont see a picture.

 

[maxwang71]

dspic33 board

Ok, I post the picture

 

[mvs sarma]

dspic33 simple board

Ok, I post the picture

pickit2 can be configured for 3.3V why all this mod?

the original pickit2 takes care and perhaps the Vtarget is changed as 3.3V, Vpp not generated, thus Vtarget will come out at vpp pin as 3.3V as well as same 3.3 is also driving all the other output elements of PGC and PGD.
why if you have a pickit2, this mod at all?

 

[maxwang71]

simple pickit2

I did not have any pickit2

I just want to make a simple one for dspic33 only

 

[mvs sarma]

target layout dspic33

I did not have any pickit2

I just want to make a simple one for dspic33 only

Perhaps you can make the full compliment even. there is a pcb layout else where in this site by Nishal at
the difference is very little, in fact. and you are likely to have a full fledged version.
Sarma