[Elecraft] PIC Stuff

Fri Nov 22 21:02:02 2002

Sounds like the GIE (global interrupts) are enabled.  The start of your code
should look something like this:

	Org	0
	Goto	start
			; interrupt vector is at 0x04
			; unless you branch around it
			; or make sure that GIE and other interrupts are
			; off, you will occasionally branch to 0x04
	org	16
Start:	crlf	porta
	etc

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Timothy A. Raymer
Sent: Friday, November 22, 2002 6:26 AM
To: [email protected]
Subject: [Elecraft] PIC Stuff

I have a friend working on a project with a PIC 16F872.  He has written a
program that for now just clears all the registers and a few other basic
things.  Problem is, the program won't consistently run until after hitting
the reset a bunch of times.  After it runs, the reset button will
consistently start the program, but it is not happy from a cold
boot.  Resonator comes up, but CPU is not happy.

Back when I was Microcontrollering with the Motorolla 68HC11, we had a
program that was called BUFFALO, or bit user friendly aid to Logical
operation.  BUFFALO was the base code that made things happy no matter what
a naive college student did.  Is there something like this for the PIC
series?  Where is a good place to look on the web for more information?

Thanks.

Tim Raymer
Timothy A. Raymer               <[email protected]>
Missouri Department of Health   <[email protected]>
and Senior Services

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