Hi David

Thanks very much for your comments. I've thoroughly tested the programmer
and all's OK.

I would tend to agree with you that I may have enabled code protect. Is
there any way this can be reversed?

Cheers

----- Original Message -----
From: "David Stubbs" <Dave@NTI-SOLUTIONS.ORG>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Tuesday, March 12, 2002 8:43 PM
Subject: Re: [PIC]: Unexplained Programming Error PIC16F84


> Lindsay,
>
> Program: address =  0000  buffer = 2810  device = 3FFF
>
> That sounds like it is trying to write 2810 (GOTO 10) to the chip at
> address 0000 but when it reads it back to verify it is getting 3FFF
> (That's all 1's from the chip).
>
> Therefore you have a problem with the programmer. If the software has a
> hardware test function try using that with a multimeter to test that it
> is working as it should.
>
> Or there is a very slight chance that you have enabled code protect by
> accident, which would cause a program to fail. Try another chip.
>
> Dave
>
> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Lindsay Pointu
> Sent: 12 March 2002 12:32
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [PIC]: Unexplained Programming Error PIC16F84
>
> Hi
>
> I will probably be taken to task over this, but please bear with a
> newbie who wants to share your passion....
>
> Programmer is the kit  (Ref no. 81) based on the article by Charles
> Manning in Elctronics Australia, which has passed all tests
> successfully.
> Program is the lights.hex test program supplied with the kit (Other
> programs have also been tried)
> Programming software is Picall Windows version 1.10d - Feb 2002 (others
> have also been tried, including a full simulation run in MPLAB)
>
> The prblem is that whenever the chip is programmed I get the error
> message:
>
> Program: address =  0000  buffer = 2810  device = 3FFF
>
> As a matter of fact, whatever program I try to download to the chip, I
> invariably get the same message with whatever is in the buffer at
> address 0000.
>
> All possible fuse combinations have also been tried.
>
> Can anyone please put me out of my misery?
>
> Thanks
>
> Lindsay Pointu <lpointu@intnet.mu>
>
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