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#ifndef TK_DELAY_H
#define TK_DELAY_H
/*
* Smaller, more flexible replacement(s) for default _delay_ms() functions.
*
* Copyright (C) 2015 Selene Scriven
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef OWN_DELAY
#include "tk-attiny.h"
#include <util/delay_basic.h>
#ifdef USE_DELAY_MS
// Having own _delay_ms() saves some bytes AND adds possibility to use variables as input
void _delay_ms(uint16_t n)
{
// TODO: make this take tenths of a ms instead of ms,
// for more precise timing?
//#ifdef USE_FINE_DELAY
//if (n==0) { _delay_loop_2(BOGOMIPS/3); }
//else {
// while(n-- > 0) _delay_loop_2(BOGOMIPS);
//}
//#else
while(n-- > 0) _delay_loop_2(BOGOMIPS);
//#endif
}
#endif
#ifdef USE_FINE_DELAY
void _delay_zero() {
_delay_loop_2(BOGOMIPS/3);
}
#endif
#ifdef USE_DELAY_4MS
void _delay_4ms(uint8_t n) // because it saves a bit of ROM space to do it this way
{
while(n-- > 0) _delay_loop_2(BOGOMIPS*4);
}
#endif
#ifdef USE_DELAY_S
void _delay_s() // because it saves a bit of ROM space to do it this way
{
#ifdef USE_DELAY_4MS
_delay_4ms(250);
#else
#ifdef USE_DELAY_MS
_delay_ms(1000);
#endif
#endif
}
#endif
#else
#include <util/delay.h>
#endif
#endif // TK_DELAY_H
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