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PICList Thread
'Programming (COM84 PIP-02 the like)'
1999\07\01@180456 by Karl A. Uscroft

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Ok, so I've just build the COM84 board for my 16F84s and got it plugged into
the back on the computer,

Then off into DOS

Typed COM84 com1
and then tried PIP-02
and nothing, programming, erasing etc, not a tod

OK i think tried COM84 on the other ports but again nothing, so has anyone
been down this road before and any help would be greatly welcome because I
was realy looking forward to getting on and doing something.  PS im using a
25 D type socket as apposed to the 9 pin D type,  take it the pins are
compatable.

Thx, Karl.

1999\07\01@184818 by Vito Simone Veneziani

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face
I had the same problem some time ago.
You should try to disable your processor cache from the bios setup.
It should work.

Ciao,
Vito Simone Veneziani

spam_OUTvitosimTakeThisOuTspamtin.it

1999\07\02@042722 by JP.BROWN

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On Thu, 1 Jul 1999, Karl A. Uscroft wrote:

> Ok, so I've just build the COM84 board for my 16F84s and got it plugged into
> the back on the computer,
>
> Then off into DOS
>
> Typed COM84 com1
> and then tried PIP-02
> and nothing, programming, erasing etc, not a tod
>

If you are using a 25 pin D type you cannot use the 9 pin D type pin
numbers.  Here is a 25 pin to 9 pin table, you will not to connect all
the pins.

       25 pin D type   9 pin D type
               2               3
               3               2
               4               7
               5               8
               6               6
               7               5
               8               1
               20              4
               22              9


         -----  John P. Brown      .....J.P.BrownKILLspamspam@spam@bradford.ac.uk ----
          \            --- Witty remark goes here ---         /
           --------------------------------------------------

1999\07\05@151536 by Robert K. Johnson

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At 05:59 PM 7/1/99 -0400, you wrote:
>Ok, so I've just build the COM84 board for my 16F84s and got it plugged into
>the back on the computer,
>
>Then off into DOS
>
>Typed COM84 com1
>and then tried PIP-02
>and nothing, programming, erasing etc, not a tod
>
       The Pin #'s ARE NOT compatable however the pin functions are, Most notab
ly
TXD & RXD are swapped. This causes me no end of trouble when I'm in a hurry
to get something tested for a software developer... or under normal
deadlines, ...Heres the spec we want it done, Not Prototype but final
Production boards and we want it yesterday <G>

               Robert K. Johnson
               rkj1spamKILLspamix.netcom.com



>OK i think tried COM84 on the other ports but again nothing, so has anyone
>been down this road before and any help would be greatly welcome because I
>was realy looking forward to getting on and doing something.  PS im using a
>25 D type socket as apposed to the 9 pin D type,  take it the pins are
>compatable.
>
>Thx, Karl.

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