HI!
You must use the slowdown software that you will find at the same wabpages
as pip and com84. With a 486 and a slow pentium (less than 90MHz) it is ok
without the slowdown software.
Ernst

John Mullan wrote:

> Most PC com ports do not supply enough voltage to put the chip into
> programming mode.  My AMD K6 333 will not program via my bare bones
> programmer.  However, many "Multi-IO" boards with com ports on them do
> work.  I put one into my 486 and have no problem programming.  the
> programming voltage has to be OVER 12volts.  11.9 will not work well.
>
> Try your programming efforts on a few different computers and you will
> likely find one that works.
>
> John Mullan
>
> -----Original Message-----
> From:   Mike M [SMTP:elektrikman@DYNAMITEMAIL.COM]
> Sent:   Thursday, October 14, 1999 11:18 PM
> To:     PICLIST@MITVMA.MIT.EDU
> Subject:        COM84 programer trouble
>
> Hey guys...i built a Com84 programmer, just a direct hookup right to the
> chip and it pulls Vdd programming voltage from the com port...Now, its all
> definitly wired correctly, however i run the com84 drivers, and then start
> PIP-02, and when i hit veryify it says verify failed, and when i try to
> program sometimes the bar goes from 0-100% real slow and i thought it was
> working but when ithit 100% it said write failed.  im programing or trying
> to program a 16C84.  HELP!  I may have posted this message before but i
> never recieved a copy to myself so i assume i addressed it wrong and it
> didnt go through thanks..
>
> mike m.
>
> Send someone a cool Dynamitemail flashcard greeting!! And get rewarded.
> GO AHEAD! http://cards.dynamitemail.com/index.php3?rid=fc-41