There seems to be something I am missing, or I do not have

It stopped working for a long time.  Even Hyperterminal stopped working on =
=20
loopback.

This morning I got hyperterminal to work again.  It just started working =20
when I connected the
PICKIT3 to it.  There is a jumper on the PICDEM PIC18 Explorer =20
Demonstration Board to select the
PIC18LF2450 or the PIC18F8722 as the ICD target.

At first I could not get the PICKIT3 to verify the part.  To solve this, I =
=20
set the ICD back
to PIC18F872 and reprogrammed the PIC18F8722 to make sure the PGD and PGC =
=20
lines were set
to be inputs.  After setting the ICD back to the PIC18LF2450 (USB) I =20
verified the firmware
against the .HEX file I have for it.  This is the only code I have, I have =
=20
no source code.

The USB started working with Hyperterminal.  Both in loopback mode =20
(connect TxD to RxD,
and receiving data from the PIC18F8722.  Hyperterminal displays the 13 =20
byte binary packets
as garbage characters scrolling across its screen.

I tried to get my .NET user interface/command program to work.  It does =20
not.
This is with the MSCOMM control.

Then using a low level C++ (visual studio 6) with MSCOMM I found that if I =
=20
read
the data once from the USB port, it will start working to get receive =20
events and data.

Going back to the .NET program, I tried the read on startup.  I worked for =
=20
a few seconds
then stopped.  I added a manual read to see if that would "kick-start =20
it".  It did a few times
but not reliably.  I can go from not starting to a few seconds then =20
stopping.  Very flaky.

MSCOM 6.0 was the non-.NET object I thought would work.  It does not in =20
the .NET world.

I need to see if the Visual Studio C++ 6.0 works any better.  If so, I =20
will need to make
a non-managed DLL to do the data interfacing for my .NET program.

Thank you for all your ideas.
Dena Meier

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