Nordic stack and drivers for the mbed BLE API
Dependents: BLE_ANCS_SDAPI BLE_temperature BLE_HeartRate writable_gatt ... more
Diff: TARGET_MCU_NRF51822/sdk/source/drivers_nrf/hal/nrf_temp.h
- Revision:
- 638:c90ae1400bf2
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TARGET_MCU_NRF51822/sdk/source/drivers_nrf/hal/nrf_temp.h Wed Sep 14 14:39:43 2016 +0100 @@ -0,0 +1,75 @@ +/* + * Copyright (c) Nordic Semiconductor ASA + * 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. Neither the name of Nordic Semiconductor ASA nor the names of other + * contributors to this software may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * 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. + * + */ + +#ifndef NRF_TEMP_H__ +#define NRF_TEMP_H__ + +#include "nrf.h" + +/** +* @defgroup nrf_temperature TEMP (temperature) abstraction +* @{ +* @ingroup nrf_drivers temperature_example +* @brief Temperature module init and read functions. +* +*/ + +/**@cond NO_DOXYGEN */ +#define MASK_SIGN (0x00000200UL) +#define MASK_SIGN_EXTENSION (0xFFFFFC00UL) + +/** + * @brief Function for preparing the temp module for temperature measurement. + * + * This function initializes the TEMP module and writes to the hidden configuration register. + */ +static __INLINE void nrf_temp_init(void) +{ + /**@note Workaround for PAN_028 rev2.0A anomaly 31 - TEMP: Temperature offset value has to be manually loaded to the TEMP module */ + *(uint32_t *) 0x4000C504 = 0; +} + +/** + * @brief Function for reading temperature measurement. + * + * The function reads the 10 bit 2's complement value and transforms it to a 32 bit 2's complement value. + */ +static __INLINE int32_t nrf_temp_read(void) +{ + /**@note Workaround for PAN_028 rev2.0A anomaly 28 - TEMP: Negative measured values are not represented correctly */ + return ((NRF_TEMP->TEMP & MASK_SIGN) != 0) ? (NRF_TEMP->TEMP | MASK_SIGN_EXTENSION) : (NRF_TEMP->TEMP); +} +/**@endcond */ + +/** @} */ + +#endif