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rhythm_pgm.c
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/*
Rhythm Clock for Arduino
Copyright 2016 Jean Michel Olivier
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* This code reads a sequence of sleep times (in tenths-of-a-second) from eeprom.
* The sequence duration can't be greater than 60 seconds.
*
* To insure that the correct ticking frequency, 60 ticks per minute, is maintained:
* - 60 modulo (sleep times count + 1) MUST be equal to 0
* - The sum of sleep times + wait time MUST be equal to (sleep times count + 1) * 10
*
* To change pattern, modify:
* sleep[] : sleep times (1 byte each - Maximum count 59)
* WAIT : wait time between each sequence of sleep times
*
*/
#include "base.h"
#include <avr/pgmspace.h>
// Sleep times (1 byte each - Maximum count 59)
const unsigned char sleep[] PROGMEM = {0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A,
0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A,
0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A,
0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A,
0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A,
0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A};
// Wait time between each sequence of sleep times (unsigned int)
#define WAIT (0x000A)
void loop() {
unsigned char i;
unsigned int j;
while(1) {
for(i = 0; i < sizeof(sleep); i++) {
doTick();
for(j = 1; j < pgm_read_byte(sleep[i]); j++)
doSleep();
}
doTick();
for(j = 1; j < WAIT; j++)
doSleep();
}
}