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/*
* The MIT License (MIT)
*
* Copyright (c) 2013-2016 The MicroPython-on-micro:bit Developers:
* Damien P. George (@dpgeorge)
* Nicholas H. Tollervey (@ntoll)
* Matthew Else (@matthewelse)
* Alan M. Jackson (@alanmjackson)
* Mark Shannon (@markshannon)
* Larry Hastings (@larryhastings)
* Mariia Koroliuk (@marichkakorolyuk)
* Andrew Mulholland (@gbaman)
* Joe Glancy (@JoeGlancy)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef __MICROPY_INCLUDED_LIB_TICKER_H__
#define __MICROPY_INCLUDED_LIB_TICKER_H__
/*************************************
* 62.5kHz (16us cycle time) ticker.
************************************/
#include "nrf.h"
typedef void (*callback_ptr)(void);
typedef int32_t (*ticker_callback_ptr)(void);
void ticker_init0(void);
void ticker_start(void);
void ticker_stop(void);
int clear_ticker_callback(uint32_t index);
int set_ticker_callback(uint32_t index, ticker_callback_ptr func, int32_t initial_delay_us);
void ticker_register_low_pri_callback(callback_ptr callback);
#define CYCLES_PER_MICROSECONDS 16
#define MICROSECONDS_PER_TICK 16
#define CYCLES_PER_TICK (CYCLES_PER_MICROSECONDS*MICROSECONDS_PER_TICK)
// This must be an integer multiple of MICROSECONDS_PER_TICK
#define MICROSECONDS_PER_MACRO_TICK 6000
#define MILLISECONDS_PER_MACRO_TICK 6
#endif // __MICROPY_INCLUDED_LIB_TICKER_H__
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