Hi all,

I have PM3 programmer and I am making 12 ICSP connectors to program pic=20
sequently.
since the programmer has a connector to control every thing my question is =
the=20
fallowing:

1. I added transistor to switch on/off each pic VPP pin. lets say ICSP1 vpp=
 is=20
connected to
    PM3 and all other are off after done will switch next etc. my question =
is=20
can I connect all VPP
   together without turning them off? only use data and clock to program?. =
I=20
know VPP carry 12v to put pic in programming mode
   but is it safe to leave all of them connected together without switching=
 them=20
off?

2. how can I program parallel? how does it work? =20

3. if I use PIC to move programming data from one pin to another data and c=
lock=20
is it ok instead  of switching using like
   analog switch etc.

my main schematic looks like this. the programmer is connected to pic24 and=
 each=20
ICSP connector is connected to pic pins
and data and clock is bypassed in software and VPP I put fets to turn them =
off=20
separately.

any suggestion? =20

thanks

Andre  =20
--=20
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