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/*
* The Clear BSD License
* Copyright (c) 2018, NXP Semiconductors, Inc.
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted (subject to the limitations in the disclaimer below) provided
* that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* o Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "fsl_tempmon.h"
/*******************************************************************************
* Definitions
******************************************************************************/
/* Component ID definition, used by tools. */
#ifndef FSL_COMPONENT_ID
#define FSL_COMPONENT_ID "platform.drivers.tempmon"
#endif
/*! @brief TEMPMON calibration data mask. */
#define TEMPMON_HOTTEMPMASK 0xFFU
#define TEMPMON_HOTTEMPSHIFT 0x00U
#define TEMPMON_HOTCOUNTMASK 0xFFF00U
#define TEMPMON_HOTCOUNTSHIFT 0X08U
#define TEMPMON_ROOMCOUNTMASK 0xFFF00000U
#define TEMPMON_ROOMCOUNTSHIFT 0x14U
/*! @brief the room temperature. */
#define TEMPMON_ROOMTEMP 25.0
/*******************************************************************************
* Prototypes
******************************************************************************/
/*******************************************************************************
* Variables
******************************************************************************/
static uint32_t s_hotTemp; /*!< The value of TEMPMON_TEMPSENSE0[TEMP_VALUE] at room temperature .*/
static uint32_t s_hotCount; /*!< The value of TEMPMON_TEMPSENSE0[TEMP_VALUE] at the hot temperature.*/
static float s_hotT_ROOM; /*!< The value of s_hotTemp minus room temperature(25��).*/
static uint32_t s_roomC_hotC; /*!< The value of s_roomCount minus s_hotCount.*/
/*******************************************************************************
* Code
******************************************************************************/
void TEMPMON_Init(TEMPMON_Type *base, const tempmon_config_t *config)
{
assert(NULL != config);
uint32_t calibrationData;
uint32_t roomCount;
/* Power on the temperature sensor*/
//base->TEMPSENSE0 &= ~TEMPMON_TEMPSENSE0_POWER_DOWN_MASK;
base->TEMPSENSE0_CLR |= TEMPMON_TEMPSENSE0_CLR_POWER_DOWN_MASK;
/* Set temperature monitor frequency */
//base->TEMPSENSE1 = TEMPMON_TEMPSENSE1_MEASURE_FREQ(config->frequency);
base->TEMPSENSE1_SET |= TEMPMON_TEMPSENSE1_SET_MEASURE_FREQ(config->frequency);
/* ready to read calibration data */
calibrationData = OCOTP->ANA1;
s_hotTemp = (uint32_t)(calibrationData & TEMPMON_HOTTEMPMASK) >> TEMPMON_HOTTEMPSHIFT;
s_hotCount = (uint32_t)(calibrationData & TEMPMON_HOTCOUNTMASK) >> TEMPMON_HOTCOUNTSHIFT;
roomCount = (uint32_t)(calibrationData & TEMPMON_ROOMCOUNTMASK) >> TEMPMON_ROOMCOUNTSHIFT;
s_hotT_ROOM = s_hotTemp - TEMPMON_ROOMTEMP;
s_roomC_hotC = roomCount - s_hotCount;
/* Set alarm temperature */
TEMPMON_SetTempAlarm(base, config->highAlarmTemp, kTEMPMON_HighAlarmMode);
TEMPMON_SetTempAlarm(base, config->panicAlarmTemp, kTEMPMON_PanicAlarmMode);
TEMPMON_SetTempAlarm(base, config->lowAlarmTemp, kTEMPMON_LowAlarmMode);
}
void TEMPMON_Deinit(TEMPMON_Type *base)
{
base->TEMPSENSE0 |= TEMPMON_TEMPSENSE0_POWER_DOWN_MASK;
}
void TEMPMON_GetDefaultConfig(tempmon_config_t *config)
{
assert(config);
/* Default measure frequency */
config->frequency = 0x03U;
/* Default high alarm temperature */
config->highAlarmTemp = 40U;
/* Default panic alarm temperature */
config->panicAlarmTemp = 90U;
/* Default low alarm temperature */
config->lowAlarmTemp = 20U;
}
float TEMPMON_GetCurrentTemperature(TEMPMON_Type *base)
{
/* Check arguments */
assert(NULL != base);
uint32_t nmeas;
float tmeas;
while (!(base->TEMPSENSE0 & TEMPMON_TEMPSENSE0_FINISHED_MASK))
{
}
/* ready to read temperature code value */
nmeas = (base->TEMPSENSE0 & TEMPMON_TEMPSENSE0_TEMP_CNT_MASK) >> TEMPMON_TEMPSENSE0_TEMP_CNT_SHIFT;
/* Calculate temperature */
tmeas = s_hotTemp - (float)((nmeas - s_hotCount) * s_hotT_ROOM / s_roomC_hotC);
return tmeas;
}
void TEMPMON_SetTempAlarm(TEMPMON_Type *base, uint32_t tempVal, tempmon_alarm_mode alarmMode)
{
/* Check arguments */
assert(NULL != base);
uint32_t tempCodeVal;
/* Calculate alarm temperature code value */
tempCodeVal = (uint32_t)(s_hotCount + (s_hotTemp - tempVal) * s_roomC_hotC / s_hotT_ROOM);
switch (alarmMode)
{
case kTEMPMON_HighAlarmMode:
/* Set high alarm temperature code value */
base->TEMPSENSE0 |= TEMPMON_TEMPSENSE0_ALARM_VALUE(tempCodeVal);
break;
case kTEMPMON_PanicAlarmMode:
/* Set panic alarm temperature code value */
base->TEMPSENSE2 |= TEMPMON_TEMPSENSE2_PANIC_ALARM_VALUE(tempCodeVal);
break;
case kTEMPMON_LowAlarmMode:
/* Set low alarm temperature code value */
base->TEMPSENSE2 |= TEMPMON_TEMPSENSE2_LOW_ALARM_VALUE(tempCodeVal);
break;
default:
assert(false);
break;
}
}
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