Olin Lathrop wrote:
> > There is no need for that to be a basic incompatibility.  I don't see how
> the demo board "requires it's own power supply" when being programmed.  Why
> does anything need to be on except the PIC?  How much Vdd current does it
> draw when the power supply is off?  You never said what the results of your
> PIC_CTRL tests were, so I can't really say much more.
>   
OK.  I'm sending the schematic of that board as an attachment in a 
separate off-list message.  I did all the pic_ctrl tests, and everything 
worked fine.  Each pin of the ds30F chip had the correct voltage.  So 
(a) the proper pins are connected, and (b) the EasyProg is doing what it 
is supposed to do.  However, the original error is still the same.

I then rigged up a breadboard circuit with nothing except the ds 30F 
chip, and went directly from the RJ12 plug to the pins.  The EasyProg 
read that one OK.  I first did a pic_prog on it, and it identified it as 
a 2010 chip.  Then did a pic_read on it, and it read it ok. 

So there is just an incompatibility with that dsPICDEMO board.  If you 
want to continue to troubleshoot it and figure out what the problem is, 
I'll be more than happy to do whatever  tests you suggest.  

John
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