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From: "Leon Heller"
Subject: Re: jdm progammer
Date: Sun, 15 Dec 2002 18:21:53 -0000
NNTP-Posting-Date: 15 Dec 2002 18:22:08 GMT
X-Newsreader: Microsoft Outlook Express 5.50.4920.2300
wrote in message
> i have build this nice pic programmer and it doesnt work.
> I wonder which cable i have to use? i got a dsub rc232 m25 to m25 is
> it fine?
> there is not electricity going thtough the circuit unless i touch the
> metalic hood of the connector with my tool. also i can lit a LED
> touching the anypart of the circuit and the metalic hood but not
> connecting the led on the circuit!
> any advice how to test debut it? please help i cant sleep!
I've designed a simple PCB for this programmer intended for making at home.
I've changed the DB-25 to a DB-9 connector, apart from that, my circuit is
identical to JDM's. It works OK with 16F84 devices. I use it with a
'straight-through' M-M DB-9 cable.
Leon Heller, G1HSM
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