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PICList Thread
'PIC Start and 16C84'
1996\06\13@050514 by Ken Hewitt

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I have a HEX file for a 16C84 application, but it contains EEdata, my
PIC start only seems to want to program the program memory area and not
the 64 byte data area, does anyone know if it can program this area and
if so how do I do it.

+-----------------------------+----------------------------------+
|   ken hewitt                |   Email spam_OUTkenTakeThisOuTspamwelwyn.demon.co.uk   |
+-----------------------------+----------------------------------+

1996\06\13@111404 by Newfound Electronics

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>I have a HEX file for a 16C84 application, but it contains EEdata, my
>PIC start only seems to want to program the program memory area and not
>the 64 byte data area, does anyone know if it can program this area and
>if so how do I do it.
>
>+-----------------------------+----------------------------------+
>|   ken hewitt                |   Email .....kenKILLspamspam@spam@welwyn.demon.co.uk   |
>+-----------------------------+----------------------------------+
>
Ken,

Sounds like you need to upgrade the firmware. I don't know when the
change was made but eariler PICSTARTS did not program the data EEPROM.
This feature was added later.

Maybe you should contact your sales REP for upgrade info.

Regards

Jim

1996\06\13@113905 by Pr Ligander

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Ken Hewitt wrote:
>
> I have a HEX file for a 16C84 application, but it contains EEdata, my
> PIC start only seems to want to program the program memory area and not
> the 64 byte data area, does anyone know if it can program this area and
> if so how do I do it.

You can make a program with the bytes for the data eeprom stored in code space
as
RETLW instructions and write a small pice of code that transfers the bytes to
the
data area. You will have to program the chip in two steps, first the above
mentioned
program, then run the chip and then reprogram the PIC with the real program.

Are you updating a satellite card by any chance ??? :-)

/Pelle

1996\06\15@085346 by Ken Hewitt

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In article <31C0336C.7771spamKILLspamlu.erisoft.se>, P=?iso-8859-1?Q?=E4r Ligander
?= <.....Par.LiganderKILLspamspam.....LU.ERISOFT.SE> writes
>
>Are you updating a satellite card by any chance ??? :-)
>
>/Pelle

Yes I am I have the code for 1 pic cards but can not get the eeprom data
stored. I do a lot of PIC programming with a PIC start But I can't find
out how to get to the data memry with it.

Ken.

+-----------------------------+----------------------------------+
|   ken hewitt                |   Email EraseMEkenspam_OUTspamTakeThisOuTwelwyn.demon.co.uk   |
+-----------------------------+----------------------------------+

1996\06\15@100203 by Ken Hewitt

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In article <199606131516.BAA32682spamspam_OUTredback.ne.com.au>, Newfound
Electronics <@spam@newfoundKILLspamspamNE.COM.AU> writes
{Quote hidden}

I have version 2.0 firmware 5.xx software I thought this was the latest
but I will check it out thanks.

+-----------------------------+----------------------------------+
|   ken hewitt                |   Email RemoveMEkenTakeThisOuTspamwelwyn.demon.co.uk   |
+-----------------------------+----------------------------------+

1996\06\15@114736 by Newfound Electronics

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>>>
>>Ken,
>>
>>Sounds like you need to upgrade the firmware. I don't know when the
>>change was made but eariler PICSTARTS did not program the data EEPROM.
>>This feature was added later.
>>
>>Maybe you should contact your sales REP for upgrade info.
>>
>>Regards
>>
>>Jim
>
>I have version 2.0 firmware 5.xx software I thought this was the latest
>but I will check it out thanks.


Ken,

I just downloaded the latest version of the PICSTART 16B software and it appears
I have given you false hope. I can only conclude,looking at the software
that the PICSTART 16B DOES NOT allow you to program the data EEPROM at all.

Sorry about this. I guess I assumed that Microchip had added the feature as
the early PICSTARTS and other Microchip tools totally lacked any "additional
features." They only supported basic "core" operations. Since Microchip have
revised and added so much, I  guess this is something they missed out on....

If you want to program the data eeprom you can either get hold of a cheap
16C84 programmer with this feature, or load the data EEPROM at RUN TIME by
storing the contents with RETLW XX instructions. This I see has been
described to you before and might get you going.


BTW. For what it is worth, in a few days I will post details of my Web page
and there will be some details of interest to all PICSTART 16B owners. There
may be some hope for you there, but not in the very short term unfortunately.

Regards,

Jim

1996\06\17@052153 by Ken Hewitt

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In article <spamBeGone199606151551.BAA21938spamBeGonespamredback.ne.com.au>, Newfound
Electronics <TakeThisOuTnewfoundEraseMEspamspam_OUTNE.COM.AU> writes
>
>If you want to program the data eeprom you can either get hold of a cheap
>16C84 programmer with this feature, or load the data EEPROM at RUN TIME by
>storing the contents with RETLW XX instructions. This I see has been
>described to you before and might get you going.
>
>
Jim.

I ended up building a simple 16C84 programmer and this worked fine once
I had found the mistake in the published circuit.

Ken

+-----------------------------+----------------------------------+
|   ken hewitt                |   Email RemoveMEkenspamTakeThisOuTwelwyn.demon.co.uk   |
+-----------------------------+----------------------------------+

1996\06\17@054101 by Onat Ahmet

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       I ended up building a simple 16C84 programmer and this worked fine
       once I had found the mistake in the published circuit.

       Ken
       |   ken hewitt                |   Email kenEraseMEspam.....welwyn.demon.co.uk   |

Hi;

If you tell us which circuit it was, and what sort of error
you corrected; then it could be helpful for all the
prospective PIC programmer builders (^_^)


Ahmet ONAT
(nooo, not a prospective programmer builder; not me! ;)

| Ahmet ONAT  Kyoto Univ. Japan                                 |
| E-mail    : EraseMEonatspamkuee.kyoto-u.ac.jp                           |
| WWW page  : http://turbine.kuee.kyoto-u.ac.jp/staff/onat.html |
|             My 6 leg walker, RC airplanes & more in home page |

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