From cc7efe452003825a5ab1d7ab24ec4809b818c8f0 Mon Sep 17 00:00:00 2001 From: "Brian S. Dean" Date: Fri, 21 Feb 2003 21:19:56 +0000 Subject: [PATCH] Update comment due to removal of the default parallel port pin config. git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@219 81a1dc3b-b13d-400b-aceb-764788c761c2 --- main.c | 45 ++++----------------------------------------- 1 file changed, 4 insertions(+), 41 deletions(-) diff --git a/main.c b/main.c index dd106d5a..173c5ae7 100644 --- a/main.c +++ b/main.c @@ -22,47 +22,10 @@ /* * Code to program an Atmel AVR AT90S device using the parallel port. * - * Pin definitions can be changed via a config file. Below is the - * default pin configuration in the absence of a config definition - * which lists "default" as one of its ids. - * - * Parallel Port Programmer Function - * ------------- ----------------------------- - * Pins 2-5 -> Vcc (see note below) - * Pin 7 -> AVR /RESET - * Pin 8 -> AVR SCK (clock input) - * Pin 9 -> AVR MOSI (instruction in) - * Pin 10 <- AVR MISO (data out) - * Pin 18 Signal Ground - * - * Additionally, the following connections can be made to enable - * additional features, however, to enable these features use the - * pin configuration id "alf" ("-c alf" on the command line): - * - * Parallel Port Programmer Function - * ------------- ----------------------------- - * Pin 1 STATUS LED, active low (program or verify error) - * Pin 6 -> /ENABLE ('367 bus driver) - * Pin 14 STATUS LED, active low (ready) - * Pin 16 STATUS LED, active low (programming) - * Pin 17 STATUS LED, active low (verifying) - * - * Pin 6 can be tied to the enable line of a 74HC367 in order to - * isolate and buffer the data to and from the PC parallel port. - * This is useful for connecting to a device in-circuit, and keeps - * the state of the parallel port pins from interfering with the - * normal operation of the target system. When programming is - * complete, this pin is driven high, causing to pins of the '367 to - * float. - * - * NOTE on Vcc connection: make sure your parallel port can supply an - * adequate amount of current to power your device. 6-10 mA per pin - * is common for parallel port signal lines, but is not guaranteed, - * especially for notebook computers. For additional power, use - * multiple pins tied together with Schottky diodes. If in doubt, - * don't risk damaging your parallel port, use an external power - * supply. - * + * For parallel port connected programmers, the pin definitions can be + * changed via a config file. See the config file for instructions on + * how to add a programmer definition. + * */ #include "ac_cfg.h"