gnupic: Which programmer for 16F87X?
Subject:
Re: Which programmer for 16F87X?
From:
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Date:
12 Sep 2001 10:37:35 -0000
Message-Id: <002701c13b77$8e0a47f0$b1c84dd5@marek>
> >
> > Hello,
> >
> > Can you tell me which programmer would be the best/simplest
> > for programming 16F87X under linux?
> >
> > I made one (picprog2.3) with 74hct573, it seems working,
> > but for two days I can't burn PIC (it reads 0x3fff)
>
> That's sounds like my Trivial programmer.
>
> Which picprg2.3 subversion do you have: 2.3a or 2.3b. Currently 2.3b is
the
> latest but we need to integrate some more changes.
>
> Can you verify that you get the correct voltages in an empty socket from
the
> picprg2.3 config screen?
>
> Let me know. I'd like to help you get the programmer working.
Hi,
I use picprg2.3b, and use 0x10 (16F87x) for programming.
LPT is working on 3.3v, so I make the data from Rb7 to PC passing 573 for
proper
voltages. Also the signal on pin 24 (RB3/Vcc) has 300us falls down to 3-4V.
Should it have some caps?
Tomorrow I will check it on 5V lpt.
Other voltages seems OK.
jerry
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