hal_f2_timerA0.c

/******************************************************************************
 *  Filename: hal_f2_timerA0.c
 *
 *  Description: Timer abstration layer api
 *
 *  Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
 *
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
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 *    notice, this list of conditions and the following disclaimer.
 *
 *    Redistributions in binary form must reproduce the above copyright
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 *    documentation and/or other materials provided with the distribution.
 *
 *    Neither the name of Texas Instruments Incorporated nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 *******************************************************************************/
#if defined (__MSP430G2553__)

#include "msp430.h"
#include "hal_timer.h"

unsigned char volatile timer_event;
unsigned long volatile time_counter = 0;

/******************************************************************************
 * @fn         hal_timer_init
 *
 * @brief      Start packet timer using Timer using ACLK as reference
 *
 *
 * input parameters
 *
 * @param       unsigned int master_count - master packet timer value
 *
 * output parameters
 *
 * @return      void
 *
 */
void hal_timer_init(unsigned int master_count) {

	// Start Timer 0 using the ACLK as a source (this enables the use of
	// various low power modes). Timer 0 will be used to keep RF burst time
	TACCR0  = master_count - 1;              // Seting for MASTER SCHEDULE
	TACCR1  = 0;                             // will be used for burst alignnment
	TACCR2  = 0;                             // will be used for expiration counter
	TACTL   = TASSEL_1 + MC_1 + TACLR + ID_0;// ACLK, Up to CCR0, clear TB0R, div/1

	return;
}