> Hello again,
>
> I'm in desparate need of help here.  I've build the PIC programmer found
> on the following page:
>
> http://www.gbar.dtu.dk/~c888600/newpics.htm
>
> It's a "simple" serial-port programmer but I can't get it to work.  I've
> tried downloading multiple copies and versions of the programs and the
> serial port drivers, using different computers, double-checked the
> circuit, etc... to no avail.
>
> I'm trying to program a 16C71.  The machines here at the lab are running
> Windoze 98 (yes, I've tried DOS mode too).  It "pretends" to read
> correctly.  It also seems to try to actually program the EEPROM, but it
> always fails to program the fuses.
>
> This is for a school project whose deadline is getting very close.  Any
> help would be greatly appreciated.
>
> Right now, I'm not even concerned about using this programmer
> specifically.  If anyone has any ideas as to how to easily program a 16C74
> w/o access to a REAL programmer, I'm all ears.
>
> -Vincent Deno

> programer from DonTronics, I kept getting a fail message as well. After a
> while i decided to just keep hitting the program button until it came up with
> no errors. At this point in time it takes me about 7 tries (one after the
> other)before it finally comes up and says it has programed correctly. The only
> problem i have at the moment is that i can't program the oscillator fuse, it
> stays set to rc regardless of what i do.
>
> Regards
> Stuart O'Reilly
>
> Vincent Deno wrote:
>
> > Hello again,
> >
> > I'm in desparate need of help here.  I've build the PIC programmer found
> > on the following page:
> >
> > http://www.gbar.dtu.dk/~c888600/newpics.htm
> >
> > It's a "simple" serial-port programmer but I can't get it to work.  I've
> > tried downloading multiple copies and versions of the programs and the
> > serial port drivers, using different computers, double-checked the
> > circuit, etc... to no avail.
> >
> > I'm trying to program a 16C71.  The machines here at the lab are running
> > Windoze 98 (yes, I've tried DOS mode too).  It "pretends" to read
> > correctly.  It also seems to try to actually program the EEPROM, but it
> > always fails to program the fuses.
> >
> > This is for a school project whose deadline is getting very close.  Any
> > help would be greatly appreciated.
> >
> > Right now, I'm not even concerned about using this programmer
> > specifically.  If anyone has any ideas as to how to easily program a 16C74
> > w/o access to a REAL programmer, I'm all ears.
> >
> > -Vincent Deno
>

>At 07:33 31/05/99 -0400, you wrote:
>>Hmmm...  not what I was hoping to hear.
>>
>>Does anyone know if the programming algorithms are the same for the 16C84
>>and the 16C71?  I'm very tempted to try this approach because I've seen a
>>lot of easy programmers out there for the 16C84.
>
>>
>>Regards,
>>Vincent Deno
>
>
>They are NOT compatible. Never try to program a '71 with the 'C84 algorithm.
>
>
>Jim
>
>
>
>________________________________________
>Email: .....newfoundKILLspam@spam@pipeline.com.au
>http://www.new-elect.com
>WARP-3 SALE now on. $48USD with world delivery.
>MPLAB compatible PIC programmers and firmware
>upgrades for many programmers.
>________________________________________
>
|

>> Van: Vincent Deno <denovjspam_OUTEMAIL.UC.EDU>
>> Aan: @spam@PICLISTKILLspamMITVMA.MIT.EDU
>> Onderwerp: Re: Help with PIP-02 programmer
>> Datum: maandag 31 mei 1999 13:33
>
>Hello Vincent,
>
>> Hmmm...  not what I was hoping to hear.
>>
>> Does anyone know if the programming algorithms are the same for the 16C84
>> and the 16C71?  I'm very tempted to try this approach because I've seen a
>> lot of easy programmers out there for the 16C84.
>
>No, they are not.  A 16x84 has got E-EPROM memory, that does only need a
>Start-programming command.  the 16x7x are EPROM (notice the emissing first
>"E") versions, that need a Start _AND_ Stop programming command, with a
>maximum distance of about 10 mSec.  And because a (Windows) PC can't
>reliable time this (to the outside-world), intelligent external hardware
>(like the PicStart+) has to be used.
>
>Greetz,
>  Rudy Wieser
>
|