a5046e83c7
This is a general cleanup of things like code style issues and code structure of the STM32w port to make it more like the rest of Contiki is structured.
111 lines
3.4 KiB
C
111 lines
3.4 KiB
C
/**
|
|
* \addtogroup mb851-platform
|
|
*
|
|
* @{
|
|
*/
|
|
/*
|
|
* Copyright (c) 2010, STMicroelectronics.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. 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.
|
|
* 3. The name of the author may not be used to endorse or promote
|
|
* products derived from this software without specific prior
|
|
* written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
|
*
|
|
*/
|
|
/**
|
|
* \file
|
|
* Temperature sensor.
|
|
* \author
|
|
* Salvatore Pitrulli <salvopitru@users.sourceforge.net>
|
|
*/
|
|
|
|
#include PLATFORM_HEADER
|
|
#include BOARD_HEADER
|
|
#include "hal/error.h"
|
|
#include "hal/hal.h"
|
|
#include "micro/adc.h"
|
|
|
|
#include "dev/temperature-sensor.h"
|
|
|
|
#undef TEMPERATURE_SENSOR_GPIO
|
|
#define TEMPERATURE_SENSOR_GPIO PORTB_PIN(7)
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
init(void)
|
|
{
|
|
halGpioConfig(TEMPERATURE_SENSOR_GPIO, GPIOCFG_ANALOG);
|
|
halInternalInitAdc();
|
|
halAdcSetRange(TRUE);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
value(int type)
|
|
{
|
|
static uint16_t ADCvalue;
|
|
static int16_t volts;
|
|
halStartAdcConversion(ADC_USER_APP, ADC_REF_INT, ADC_SOURCE_ADC2_VREF2,
|
|
ADC_CONVERSION_TIME_US_4096);
|
|
|
|
/* This blocks for a while, about 4ms. */
|
|
halReadAdcBlocking(ADC_USER_APP, &ADCvalue);
|
|
|
|
/* 100 uVolts */
|
|
volts = halConvertValueToVolts(ADCvalue);
|
|
|
|
/* +- 0.23 degC in the range (-10;65) degC */
|
|
/* return ((18641 - (int32_t)volts)*100)/1171;*/
|
|
|
|
/* +- 0.004 degC in the range (20;30) degC */
|
|
return ((18663 - (int32_t) volts) * 100) / 1169;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
configure(int type, int value)
|
|
{
|
|
switch (type) {
|
|
case SENSORS_HW_INIT:
|
|
init();
|
|
return 1;
|
|
case SENSORS_ACTIVE:
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
status(int type)
|
|
{
|
|
switch (type) {
|
|
case SENSORS_READY:
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
SENSORS_SENSOR(temperature_sensor, TEMPERATURE_SENSOR,
|
|
value, configure, status);
|
|
/*--------------------------------------------------------------------------*/
|
|
/** @} */
|