🚀 go-pugleaf

In article: <1996Apr7.144637.443@gpdesign.demon.co.uk>  George Poulson <george@gpdesign.demon.co.uk> writes:
> : Does it do PICs George ? If it does then I'm interested.
> 
> 
> 
> The unit I bought for UKP139 is called the PB-10. It has a 40-way ZIF 
> socket; I'm using it now (yes.. I know.. Easter Sunday and I'm working!) 
> to program 1Mbit FLASH parts (32-pin dil). It does EPROMS up to 4Mbit. 

> <snip>
 
> It doesn't do PIC's .. but haven't I seen some REALLY low cost PIC
> programmers advertised either in this group or in one of the
> "alt.pirate.decoding.of.satellite.tv" newsgroups?? .. Do they work OK ?? 
> 
Programming a PIC, depends on the one required. The 16C84, is the easiest,
this can be done with just a couple of transistors, a few resistors, and a small
PSU., off the parallel port of a PC. The circuit for this, is available from Microchip,
together with the code, as an 'application note' - AN589 'A PC based development
programmer for the PIC16C84. This doesn't meet their own 'production' spec., which
requires verification at 4.5/5.5v, but works reasonably. I have built a more sophisticated
version, that uses a couple of extra bits of the printer port to program Vcc, and modified
the code to re-verify at these other voltages. Microchip themselves, do some quite
reasonably priced basic programmers for various other types.

Best Wishes

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