Hey Olin
The target board is 5V tolerant so I unplugged it from my RF board
I ran the pic_prog with the -VDD 5 parameter and I got a reply from the
device.
So I'm thinking all is fine if I just power the target with the programmer.
Next I tried to program the device (Used the *.hex file from my MPLAB
project)
It complained about the format of the file..............??????
(I used the hex file from my MPLAB project file)
Now the thing doesn't work at all and the voltages on the white header next
to the RJ12 ICD connector are missing/very very low and the LEDS no longer
lite.
I know what you are thinking that I connected it whilst the board was
powered but I was VERY VERY VERY CAREFUL not connect it to the target whilst
my board that supplies 3V was connected because it is not 5V tolerant and
has very expensive ceramic diplexers and filters that can not be mounted by
hand (they have to be reflowed) so I have to send them out to get the
filters mounted and it takes my technician a day to hand jive the two
hundred remaining 0402 parts.
I have already been there done that using the ICD2 @5V to reprogram the code
protection bits.  It didn't hurt the ICD2 a one bit but it would have been
cheaper to buy an ICD2 than to build another proto.
Anyway my prototype unit is fine so I'm confident I did not have it
connected when the programmer applied 5V.

Can I just send this back for another one and start over?

Phillip
Things should be as simple as possible but no simpler
 
 
 
Phillip Coiner
CTO, GPS Source, Inc.
 
 
Your source for quality GNSS Networking Solutions and Design Services, Now!

-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of
Olin Lathrop
Sent: Thursday, March 29, 2007 12:16 PM
To: Microcontroller discussion list - Public.
Subject: Re: [PIC] Pro_Prog communications not setup properly/ setup trouble

Phillip Coiner wrote:
> C:\embedinc\com>test_picprg -SIO 2
> ID
> ID Namespace UNKNOWN, 0000000000000000b 0000h 0

This means there is a electrical problem somewhere.

> The target is powered up and running and the programming cable is
> connected.

But how is the target powered?  From the programmer or from its own power
supply?  Is the Vdd line between the programmer and the target connected?
Are all the lines wiggling at the target?

The best setup would be for the target to be only powered from the ProProg.
If you have to power the target itself because it draws too much current,
then disconnect the Vdd line between the programmer and the target and use
the -VDD command line option.

I'm guessing something is loading the programming signals.  Do you have a
empty target board you can populate only with the target PIC and its bypass
caps?  It would be useful to get something working, then incrementally add
your circuit until it stops working.

What do you have hanging on PGC and PGD?


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