gnupic: Re: [gnupic] first attempt flops
Subject:
Re: [gnupic] first attempt flops
From:
Jan Wagemakers ####@####.####
Date:
15 Jun 2006 16:09:41 +0100
Message-Id: <20060615150921.GC24363@qwerty.be>
Maxim Wexler ####@####.#### schreef:
> I finally got everything setup with an Olimex PG2C serial programmer on my
> ubuntu box and tried my first stab at programming a pic.
> Then I got this:
> booyah@ubuntu:~/docs/pic/toggle$ picprog --burn --input Toggle.hex -p
> /dev/ttyS0 -d pic16f874
> Picprog version 1.8.1, Copyright (c) 2006 Jaakko Hyvätti <
> ####@####.####
[cut]
> Device pic16f874, program memory: 4096, data memory: 128.
> CPU clock speed: 930 MHz
> Burning program memory,/dev/ttyS0:PIC programmer missing or chip fault
> /dev/ttyS0:0000:unable to read pic while programming
> The chip is brand new from Digi-key, never been programmed before. I know
> the port is OK cuz I've used it with an external modem, minicom works and I
> can scope the TxD line when I send keyboard input through the port.
> Anybody see what's wrong here?
Maybe you have a 'low voltage' serial port. I use picprog myself with a
home-build¹ JDM-programmer and it works without problems on my normal PC.
But It doesn't works on my laptop because the voltage of my serial port is
to low (±5V).
To solve this I have build a 'serial port power booster'². With that I can
use picprog on my laptop, but only at 600Mhz, not at 750Mhz³. 750Mhz only
works with a little hack⁴.
[1] <http://www.janw.dommel.be/pic1-e.html>
[2] <http://www.qsl.net/eb4eqa/serial_booster/serial_booster.htm>
[3] <http://www.janw.dommel.be/nanoblogger/archives/2006/04/#e2006-04-01T13_24_44.txt>
[4] <http://www.janw.dommel.be/nanoblogger/archives/2006/04/#e2006-04-15T18_52_29.txt>
--
Met vriendelijke groetjes - Jan Wagemakers -
... RFS: picprog: Microchip PIC serial programmer software (GPL)
Deb-package is available at <http://www.janw.dommel.be/picprog.html>
