75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/****************************************************************************
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* boards/arm/stm32/aiit-arm32-board/src/stm32_critmon.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/**
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* @file stm32_critmon.c
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* @brief nuttx source code
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* https://github.com/apache/incubator-nuttx.git
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* @version 10.2.0
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* @author AIIT XUOS Lab
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* @date 2022-03-17
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*/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <time.h>
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#include <fixedmath.h>
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#include "dwt.h"
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#include "arm_arch.h"
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#include <nuttx/clock.h>
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#include <arch/board/board.h>
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#ifdef CONFIG_SCHED_CRITMONITOR
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: up_critmon_gettime
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****************************************************************************/
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uint32_t up_critmon_gettime(void)
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{
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return getreg32(DWT_CYCCNT);
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}
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/****************************************************************************
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* Name: up_critmon_gettime
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****************************************************************************/
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void up_critmon_convert(uint32_t elapsed, FAR struct timespec *ts)
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{
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b32_t b32elapsed;
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b32elapsed = itob32(elapsed) / STM32_SYSCLK_FREQUENCY;
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ts->tv_sec = b32toi(b32elapsed);
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ts->tv_nsec = NSEC_PER_SEC * b32frac(b32elapsed) / b32ONE;
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}
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#endif /* CONFIG_SCHED_CRITMONITOR */
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