gnupic: Re: [gnupic] About a USB programmer I found
Subject:
Re: [gnupic] About a USB programmer I found
From:
"Mark Rages" ####@####.####
Date:
20 Aug 2006 02:36:51 +0100
Message-Id: <74ee72ca0608191831u25d1689fk3d7e8adfacccae75@mail.gmail.com>
On 8/19/06, Byron A Jeff ####@####.#### wrote:
> I have some additional notes sice I haven't update my web pages for a while:
>
> 1) The 18F4550 requires a Vihh (programming voltage) of Vdd + 4.0V. So if you
> use my Trivial High Voltage Programmer (http://www.finitesite.com/d3jsys/proghvp.html)
> then instead of 13V you can use anywhere between 9V and 12V. The easiest voltage
> source probably would be a 15-16V wall wart and a LM7812 voltage regulator.
You could crack open the computer case and borrow +12V from a 4-pin
power connector.
> I hope these resources help you. I'm glad you asked the question as it gave me
> a chance to do some USB bootloader research on a Linux platform. In fact I
> think I have a 18F4550 floating around here somewhere... Hmmm.
The bootloader used in the PICkit 2 is supported by at least two
different Linux projects (pk2 and pyk). Source is on the Microchip
PICkit 2 page.
Regards,
Mark
markrages@gmail
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