mbed os with nrf51 internal bandgap enabled to read battery level
Dependents: BLE_file_test BLE_Blink ExternalEncoder
Diff: hal/analogin_api.h
- Revision:
- 0:f269e3021894
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hal/analogin_api.h Sun Oct 23 15:10:02 2016 +0000 @@ -0,0 +1,86 @@ + +/** \addtogroup hal */ +/** @{*/ +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef MBED_ANALOGIN_API_H +#define MBED_ANALOGIN_API_H + +#include "device.h" + +#if DEVICE_ANALOGIN + +#ifdef __cplusplus +extern "C" { +#endif + +/** Analogin hal structure. analogin_s is declared in the target's hal + */ +typedef struct analogin_s analogin_t; + +/** + * \defgroup hal_analogin Analogin hal functions + * @{ + */ + +/** Initialize the analogin peripheral + * + * Configures the pin used by analogin. + * @param obj The analogin object to initialize + * @param pin The analogin pin name + */ +void analogin_init(analogin_t *obj, PinName pin); + + +/** Initialize the battery level peripheral + * Configures internal bandgap to read battery level. + * @param obj The analogin object to initialize + */ +void battery_init(analogin_t *obj); + +/** Read the value from battery, represented as an unsigned 16bit value + * + * @param obj The analogin object + * @return An unsigned 16bit value representing the current input voltage + */ +uint16_t battery_read_u16(analogin_t *obj); + +/** Read the input voltage, represented as a float in the range [0.0, 1.0] + * + * @param obj The analogin object + * @return A floating value representing the current input voltage + */ + +float analogin_read(analogin_t *obj); + +/** Read the value from analogin pin, represented as an unsigned 16bit value + * + * @param obj The analogin object + * @return An unsigned 16bit value representing the current input voltage + */ +uint16_t analogin_read_u16(analogin_t *obj); + +/**@}*/ + +#ifdef __cplusplus +} +#endif + +#endif + +#endif + +/** @}*/