API for temperature sensor in nrf51822

Dependents:   BLE_TemperatureAdvertising BLE_TemperatureObserver TEMP_YM2

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Show/hide line numbers TMP_nrf51.cpp Source File

TMP_nrf51.cpp

00001 
00002 /* mbed Microcontroller Library
00003  * Copyright (c) 2006-2015 ARM Limited
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License");
00006  * you may not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  *     http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS,
00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017  
00018 #include "TMP_nrf51.h"
00019 #include "nrf_soc.h" // for internal Thermo sensoer
00020 
00021 /**
00022  * @brief Get the temperature value. 
00023  *
00024  * @return Die temperature in °C
00025  *
00026  */
00027 TMP_nrf51::tmpSensorValue_t TMP_nrf51::get()
00028 {
00029     int32_t p_temp;
00030     
00031     sd_temp_get(&p_temp);
00032    
00033     return (TMP_nrf51::tmpSensorValue_t) ((float)p_temp * 0.25); /* 0.25 is temperature sensor resolution */
00034 }