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/* *****************************************************************************
* 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/>.
*
* Created: 12/18/09 02:41:40
* Copyright (c) 2009 Perry L. Hung. All rights reserved.
*
* ****************************************************************************/
/**
* @file time.h
*
* @brief
*/
#ifndef _TIME_H
#define _TIME_H
#ifdef __cplusplus
extern "C"{
#endif
/* Returns time since boot in milliseconds */
uint32_t millis(void);
/* Time in microseconds since boot */
uint32_t micros(void);
/* Delay for ms milliseconds */
void delay(unsigned long ms);
/* Delay for us microseconds */
void delayMicroseconds(uint32_t us);
#if 0
static inline void delay_us(uint32 us) {
us *= 12;
asm volatile("mov r0, %[us] \n\t"
"subs r0, #2 \n\t"
"1: \n\t"
"subs r0, r0, #1 \n\t"
"bne 1b"
:
: [us] "r" (us)
: "r0", "cc");
}
#endif
#ifdef __cplusplus
} // extern "C"
#endif
#endif
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