FreeRTOS/Demo/MSP430X_MSP430F5438_CCS/Demo_Source/RunTimeStatsConfig.c

/*
 * FreeRTOS Kernel V10.0.1
 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
 *
 * 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.
 *
 * http://www.FreeRTOS.org
 * http://aws.amazon.com/freertos
 *
 * 1 tab == 4 spaces!
 */

/* FreeRTOS includes. */
#include "FreeRTOS.h"

/* Hardware includes. */
#include "msp430.h"
#include "hal_MSP-EXP430F5438.h"

/* This demo uses Timer A1 to generate the time base for gathering run time
statistics information.  Run time statistics show much processing time has
been allocated to each task since the application booted. */

/* The time base for the run time stats is generated by a 16 bit timer.  Each
time the timer overflows ulStatsOverflowCount is incremented.  Therefore,
when converting the total run time to a 32 bit number, the most significant two
bytes are given by ulStatsOverflowCount and the least significant two bytes are
given by the current timer counter value.  Care must be taken with data
consistency when combining the two in case a timer overflow occurs as the
value is being read. */
volatile unsigned long ulStatsOverflowCount = 0;

/*-----------------------------------------------------------*/

void vConfigureTimerForRunTimeStats( void )
{
	/* Ensure the timer is stopped. */
	TA1CTL = 0;

	/* Run the timer from the ACLK/2. */
	TA1CTL = TASSEL_1 | ID__2;

	/* Clear everything to start with. */
	TA1CTL |= TACLR;

	/* Enable the interrupts. */
	TA1CCTL0 = CCIE;

	/* Start up clean. */
	TA1CTL |= TACLR;

	/* Continuous mode. */
	TA1CTL |= MC__CONTINOUS;
}
/*-----------------------------------------------------------*/

#pragma vector=TIMER1_A0_VECTOR
interrupt void prvRunTimeStatsOverflowISR( void )
{
	ulStatsOverflowCount++;
}
/*-----------------------------------------------------------*/