piclist 2001\01\29\160519a >
Thread: Homemade Programmer 16F877
www.piclist.com/techref/microchip/devprogs.htm?key=programmer
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face BY : Paul Erkiert email (remove spam text)



----- Original Message -----
From: Paul Erkiert <STOPspamg4bks.....spam@spam@ic24.net>
To: pic microcontroller discussion list <RemoveMEPICLISTRemoveMEspamKILLspamMITVMA.MIT.EDU>
Sent: Sunday, January 28, 2001 8:06 PM
Subject: Re: [PIC]: Homemade Programmer 16F877


> Hi Jeethu
> Just use one or two silicon diodes between the middle pin(earth) and the
0v
> rail this will "Lift" the voltage by 0.6volts each  so 1.2v if using two.
> The other way is to Cascade an 8volt from a 5volt reg so that the middle
pin
> of the 8 volt reg is at 5 volts then you should have 13volts.
> I am using a "clasic" Tait programmer for the 16f877 and using Nigle
> Goodwins WPICPROG877
> http://www.ipilsley.co.uk/software/
> Its built on veroboard    I find that its good but the picprog seems
always
> to set code protect so have to just uncheck it before burning.
> My other "HOT TIP" or really silly mistake I made while using the 877 was
> assuming it was ok not to set ADCON1 ,I hear the experts laugth but you
need
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all
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