gnupic: Re: [gnupic] using Byron Jeff's TLVProgrammer
Subject:
Re: [gnupic] using Byron Jeff's TLVProgrammer
From:
"Maxim Wexler" ####@####.####
Date:
16 Dec 2006 22:30:30 +0000
Message-Id: <a0811460612161430k101fd783qb0fb6b6baeea5308@mail.gmail.com>
On 12/16/06, Robert Pearce ####@####.#### wrote:
>
> On Sat, 16 Dec 2006, Maxim Wexler ####@####.#### wrote :
> >
> >OK what about this from .pkprc, negative 5 for instance? Nothing on the
> >TVLP page about that.
>
> I wouldn't expect it to be in that form, necessarily.
>
> > .pkprc is a commented list so presumably this is
> >important info so I can't just put anything in here, can I?
>
> You have to obey the file format, but you can specify whatever your
> programmer needs. As I understand it, each line defines both the pin
> number and the polarity of a given signal. So the Tait definition reads
> as:
>vpp=-5
___
any text book I ever read says this means minus 5 volts at vpp. vpp(5)
means vpp at pin five, naught.
>
> The Vpp enable control is on pin 5 of the parport (d4) and is active low
>
> >vdd=-4
ditto minus 4
The Vdd enable control is on pin 4 of the parport (d3) and is active low
>
> >clock=3
d3 on the parport is strictly i/o as far as I'm aware. And, it's ganged w/
the other i/o
The programming clock line is on pin 3 (d2) and is active high
>
> >datao=2
>
> The programming data output is on pin 2 (d1) and is active high
>
> >datai=10
>
> The programming data read-back is on pin 10 (ack?) and is active high
Looks like only one data line ie actually called 'data'.
http://www.finitesite.com/d3jsys/
>rw=25
Well, pin25 on the parport is gnd
I assume this means there's a read/write selector on the Tait
> programmer, on pin 25. Not all programmers have this signal.
>
> If you have a pin-out for the TVLP you should be able to work out the
> correct values to put in the file.
I've got the pin-out. Don't have your confidence. Which lines are for the
parport and which the programmer?
Maxim
