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/*******************************************************************************
* Copyright (c) 2011 protos software gmbh (http://www.protos.de).
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* CONTRIBUTORS:
* Thomas Jung (initial contribution)
*
*******************************************************************************/
/*******************************************************************************
* This file implements the project specific part of teh single threaded
* runtime for a XMC ARM Cortex microcontroller from Infineon.
*
* It demonstrates how to adapt to your specific microcontroller. The only thing
* you need is a periodic interrupt which maintains the etTime. This is the base
* for all the modeltimers you can use in your eTrice model.
*
* This implementation gives you a 1ms accurate time. For most applications this
* resolution is sufficient and the implementation is much simpler. This version
* could serve as a starting point for your own project with any other microcontroller.
*
********************************************************************************/
#include "osal/etTime.h"
#include "Dave.h"
#include "helpers/etTimeHelpers.h"
#include "etRuntimeConfig.h"
#include "etPlatform.h"
extern etTime etTargetTime;
void DAVE_InstallTickHandler(void);
void getTimeFromTarget(etTime *t) {
/* return the time */
/* make sure that reading the time is an atomic opration */
/* => the timer interrupt should not interrupt this operation */
__disable_irq();
*t = etTargetTime;
__enable_irq();
}
/* the timer interrupt */
void etTick_Handler(void *nanoSecPerTick) {
etTargetTime.nSec += (uint32_t)nanoSecPerTick;
if (etTargetTime.nSec >= 1000000000L) {
etTargetTime.nSec -= 1000000000L;
etTargetTime.sec++;
}
}
/* this function will be called during initialization */
void etSingleThreadedProjectSpecificUserEntry(void){
DAVE_InstallTickHandler();
}
#ifdef ET_USE_DAVE_SYSTIMER_APP
#else
void SysTick_Handler(void){
etTick_Handler((void *)(ET_DAVE_TICK_PERIOD_USEC * 1000));
}
#endif
/* The SYSTIMER App from DAVE must be available */
void DAVE_InstallTickHandler(void){
#ifdef ET_USE_DAVE_SYSTIMER_APP
uint32_t timerId;
timerId = SYSTIMER_CreateTimer(ET_DAVE_TICK_PERIOD_USEC,SYSTIMER_MODE_PERIODIC,etTick_Handler,(void*) (ET_DAVE_TICK_PERIOD_USEC * 1000));
SYSTIMER_StartTimer(timerId);
#else
SysTick_Config(SystemCoreClock * (ET_DAVE_TICK_PERIOD_USEC * 0.000001F));
#endif /*ET_USE_DAVE_SYSTIMER_APP */
}
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