126 lines
3.1 KiB
C
126 lines
3.1 KiB
C
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/*
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* blink12drcs.c:
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* Simple sequence over the first 12 GPIO pins - LEDs
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* Aimed at the Gertboard, but it's fairly generic.
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* This version uses DRC totalk to the ATmega on the Gertboard
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*
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* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
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***********************************************************************
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* This file is part of wiringPi:
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* https://projects.drogon.net/raspberry-pi/wiringpi/
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*
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* wiringPi is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* wiringPi is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
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***********************************************************************
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*/
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#include <stdio.h>
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#include <wiringPi.h>
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#include <drcSerial.h>
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#define GERT_BASE 100
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static int pinMap [] =
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{
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0, 1, 2, 3, // Pi Native
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GERT_BASE + 2, GERT_BASE + 3, GERT_BASE + 4, GERT_BASE + 5,
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GERT_BASE + 6, GERT_BASE + 7, GERT_BASE + 8, GERT_BASE + 9,
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} ;
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// Simple sequencer data
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// Triplets of LED, On/Off and delay
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int data [] =
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{
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0, 1, 1,
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1, 1, 1,
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0, 0, 0, 2, 1, 1,
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1, 0, 0, 3, 1, 1,
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2, 0, 0, 4, 1, 1,
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3, 0, 0, 5, 1, 1,
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4, 0, 0, 6, 1, 1,
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5, 0, 0, 7, 1, 1,
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6, 0, 0, 8, 1, 1,
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7, 0, 0, 9, 1, 1,
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8, 0, 0, 10, 1, 1,
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9, 0, 0, 11, 1, 1,
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10, 0, 1,
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11, 0, 1,
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0, 0, 1, // Extra delay
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// Back again
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11, 1, 1,
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10, 1, 1,
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11, 0, 0, 9, 1, 1,
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10, 0, 0, 8, 1, 1,
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9, 0, 0, 7, 1, 1,
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8, 0, 0, 6, 1, 1,
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7, 0, 0, 5, 1, 1,
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6, 0, 0, 4, 1, 1,
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5, 0, 0, 3, 1, 1,
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4, 0, 0, 2, 1, 1,
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3, 0, 0, 1, 1, 1,
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2, 0, 0, 0, 1, 1,
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1, 0, 1,
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0, 0, 1,
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0, 0, 1, // Extra delay
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0, 9, 0, // End marker
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} ;
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int main (void)
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{
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int pin ;
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int dataPtr ;
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int l, s, d ;
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printf ("Raspberry Pi - 12-LED Sequence\n") ;
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printf ("==============================\n") ;
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printf ("\n") ;
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printf ("Connect LEDs up to the first 4 Pi pins and 8 pins on the ATmega\n") ;
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printf (" from PD2 through PB1 in that order,\n") ;
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printf (" then sit back and watch the show!\n") ;
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wiringPiSetup () ;
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drcSetupSerial (GERT_BASE, 20, "/dev/ttyAMA0", 115200) ;
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for (pin = 0 ; pin < 12 ; ++pin)
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pinMode (pinMap [pin], OUTPUT) ;
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dataPtr = 0 ;
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for (;;)
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{
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l = data [dataPtr++] ; // LED
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s = data [dataPtr++] ; // State
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d = data [dataPtr++] ; // Duration (10ths)
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if (s == 9) // 9 -> End Marker
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{
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dataPtr = 0 ;
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continue ;
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}
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digitalWrite (pinMap [l], s) ;
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delay (d * analogRead (GERT_BASE) / 4) ;
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}
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return 0 ;
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}
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