Chris ,
Thanks.
Now Pickit3 can power demo board without external power
Thanks again.

But still I can not DEBUG a program.I have this very simple program

#include <p18F45k20.inc>
CONFIG FOSC =3D INTIO7
=09
	org 0
Start:
	BSF STATUS,1; select Register Bank 1
	BCF TRISD,0 ; make IO Pin RD0 an output
	BCF STATUS,0; back to Register Bank 0
	BSF PORTD,0 ; turn on LED RD0 (DS0)

	END

It works, LED is ON, but can not debug.
I receive the error

PK3Err0040: The target device is not ready for debugging.Please check your =
configuration=20
bit settings and programthe device before proceeding

Can anyone help?
Thanks

L.


> Select Debugger Menu.
> Settings...
> Power Tab
> Tick "Power target circuit from PICkit3"
>=20
> Have fun :)
>=20
> 2011/10/22  <jana1972@centrum.cz>:
> > =A0Chris ,
> > Thank you for your reply.
> >
> >> You should be able to power the PIC with the PICKit3.
> > I am not sure of that.
> > If I =A0connect PICkit3 only to a board with PIC, ( and no external pow=
er is there),
> > MPLAB( I am using) does NOT recognise any target device being connected=
..
> > ( I tested that =A0with 44 pin demo mainboard by Microchip )
> > But as soon as I connect the external power to the mainboard, target de=
vice is recognignised
> >
> >
> >
> >
> >> Look at the pin outs for the PIC16F628A and connect them to the
> >> corresponding pins on the PICKit3 and you should be good to go, as
> >> long as the PICKit3 is connected and is Powering the PIC.
> >> If you need to run the PIC with the PICKit3 disconnected, you will
> >> have to then provide external power and also hold MCR high, refer
> >> again to the PIC =A0PDF.
> >>
> >>
> >> On 22 October 2011 15:22, =A0<jana1972@centrum.cz> wrote:
> >> > Thanks for your reply
> >> > I thought that PICkit3 works as
> >> > a debugger and a programmer
> >> >
> >> > So, when I compile a sample program
> >> > I must upload to ( program) a microchip, in my case to PIC16F628A.
> >> > Only after that I can debug it.
> >> > Is it so? Or working with PICkit3 is different?
> >> >
> >> >> The simplest is that it has just power.
> >> > Do you mean only + and - and that is ALL?
> >> >
> >> >> Use the internal oscillator
> >> >> and disable MCLR
> >> > But do you think that internal oscilator is important for PICkit3 to=
 recognise PIC16F628A?
> >> > I thought that =A0MCLR is set up in config and has not any influence=
 on PICkit3 in finding the
> >> > PIC16F628A.
> >> >
> >> >
> >> > PICkit3 requires only these signals
> >> > Vpp
> >> > VDD Target
> >> > Vss
> >> > PGD
> >> > PGC
> >> > PGM
> >> >
> >> > Does it mean that if I connect these 6 signals to PICkit3 and power =
to PIC16F628A ,
> >> > PIC16F628A must work?
> >> >
> >> > Thanks
> >> > L.
> >> >
> >> >
> >> >> > Can anyone suggest the simplest connection of PIC16F628A?
> >> >>
> >> >> The simplest is that it has just power. Use the internal oscillator
> >> >> and disable MCLR
> >> >>
> >> >> > Target Device ID (00000000) does not match expected DeviceID (000=
01120).
> >> >>
> >> >> Are you connecting to the correct pins for programming ? Double
> >> >> check. How you have the 628 configured for run-time shouldn't
> >> >> affect the programmer (as long as any circuitry isn't interfering w=
ith
> >> >> the programming)
> >> >>
> >> >> > so I am not sure if the PIC is faulty
> >> >>
> >> >> Unlikely, but not impossible of course
> >> >>
> >> >> > or the schematic is =A0faulty
> >> >>
> >> >> Hmmmm
> >> >>
> >> >> > Is 3.6V as power supply enough?
> >> >>
> >> >> Yes. Vdd is 3V - 5.5V
> >> >> --
> >> >> http://www.piclist.com PIC/SX FAQ & list archive
> >> >> View/change your membership options at
> >> >> http://mailman.mit.edu/mailman/listinfo/piclist
> >> >
> >> >
> >> > --
> >> > http://www.piclist.com PIC/SX FAQ & list archive
> >> > View/change your membership options at
> >> > http://mailman.mit.edu/mailman/listinfo/piclist
> >> >
> >>
> >> --
> >> http://www.piclist.com PIC/SX FAQ & list archive
> >> View/change your membership options at
> >> http://mailman.mit.edu/mailman/listinfo/piclist
> >
> >
> >
> > --
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> > View/change your membership options at
> > http://mailman.mit.edu/mailman/listinfo/piclist
> >
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