Analog Devices / mbed-drivers

A collection of Analog Devices drivers for the mbed platform

For additional information check out the mbed page of the Analog Devices wiki: https://wiki.analog.com/resources/tools-software/mbed-drivers-all

libraries/CN0216/CN0216.h@33:c3ec596a29c2, 2016-11-07 (annotated)

Committer:
Adrian Suciu
Date:
Mon Nov 07 16:27:12 2016 +0200
Revision:
33:c3ec596a29c2
Parent:
29:c693bdaac786 
Added CN0391, CN0396 and CN0397 shields

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Adrian Suciu 24:dae7123d432a 1 /**
Adrian Suciu 24:dae7123d432a 2 * @file cn0216.h
Adrian Suciu 24:dae7123d432a 3 * @brief Header file for CN0216
Adrian Suciu 24:dae7123d432a 4 * @author Analog Devices Inc.
Adrian Suciu 24:dae7123d432a 5 *
Adrian Suciu 24:dae7123d432a 6 * For support please go to:
Adrian Suciu 24:dae7123d432a 7 * Github: https://github.com/analogdevicesinc/mbed-adi
Adrian Suciu 24:dae7123d432a 8 * Support: https://ez.analog.com/community/linux-device-drivers/microcontroller-no-os-drivers
Adrian Suciu 24:dae7123d432a 9 * Product: www.analog.com/EVAL-CN0216-ARDZ
Adrian Suciu 24:dae7123d432a 10 * More: https://wiki.analog.com/resources/tools-software/mbed-drivers-all
Adrian Suciu 24:dae7123d432a 11
Adrian Suciu 24:dae7123d432a 12 ********************************************************************************
Adrian Suciu 24:dae7123d432a 13 * Copyright 2016(c) Analog Devices, Inc.
Adrian Suciu 24:dae7123d432a 14 *
Adrian Suciu 24:dae7123d432a 15 * All rights reserved.
Adrian Suciu 24:dae7123d432a 16 *
Adrian Suciu 24:dae7123d432a 17 * Redistribution and use in source and binary forms, with or without
Adrian Suciu 24:dae7123d432a 18 * modification, are permitted provided that the following conditions are met:
Adrian Suciu 24:dae7123d432a 19 * - Redistributions of source code must retain the above copyright
Adrian Suciu 24:dae7123d432a 20 * notice, this list of conditions and the following disclaimer.
Adrian Suciu 24:dae7123d432a 21 * - Redistributions in binary form must reproduce the above copyright
Adrian Suciu 24:dae7123d432a 22 * notice, this list of conditions and the following disclaimer in
Adrian Suciu 24:dae7123d432a 23 * the documentation and/or other materials provided with the
Adrian Suciu 24:dae7123d432a 24 * distribution.
Adrian Suciu 24:dae7123d432a 25 * - Neither the name of Analog Devices, Inc. nor the names of its
Adrian Suciu 24:dae7123d432a 26 * contributors may be used to endorse or promote products derived
Adrian Suciu 24:dae7123d432a 27 * from this software without specific prior written permission.
Adrian Suciu 24:dae7123d432a 28 * - The use of this software may or may not infringe the patent rights
Adrian Suciu 24:dae7123d432a 29 * of one or more patent holders. This license does not release you
Adrian Suciu 24:dae7123d432a 30 * from the requirement that you obtain separate licenses from these
Adrian Suciu 24:dae7123d432a 31 * patent holders to use this software.
Adrian Suciu 24:dae7123d432a 32 * - Use of the software either in source or binary form, must be run
Adrian Suciu 24:dae7123d432a 33 * on or directly connected to an Analog Devices Inc. component.
Adrian Suciu 24:dae7123d432a 34 *
Adrian Suciu 24:dae7123d432a 35 * THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR
Adrian Suciu 24:dae7123d432a 36 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT,
Adrian Suciu 24:dae7123d432a 37 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
Adrian Suciu 24:dae7123d432a 38 * IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT,
Adrian Suciu 24:dae7123d432a 39 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
Adrian Suciu 24:dae7123d432a 40 * LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR
Adrian Suciu 24:dae7123d432a 41 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
Adrian Suciu 24:dae7123d432a 42 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
Adrian Suciu 24:dae7123d432a 43 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
Adrian Suciu 24:dae7123d432a 44 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Adrian Suciu 24:dae7123d432a 45 *
Adrian Suciu 24:dae7123d432a 46 ********************************************************************************/
Adrian Suciu 24:dae7123d432a 47
Adrian Suciu 24:dae7123d432a 48 #include "mbed.h"
Adrian Suciu 24:dae7123d432a 49 #include "AD7791.h"
Adrian Suciu 24:dae7123d432a 50
Adrian Suciu 24:dae7123d432a 51 #ifndef CN0216_H_
Adrian Suciu 24:dae7123d432a 52 #define CN0216_H_
Adrian Suciu 24:dae7123d432a 53
Adrian Suciu 29:c693bdaac786 54 /**
Adrian Suciu 29:c693bdaac786 55 * @brief EVAL-CN0216 weigh scale measurement shield
Adrian Suciu 29:c693bdaac786 56 */
Adrian Suciu 24:dae7123d432a 57 class CN0216
Adrian Suciu 24:dae7123d432a 58 {
Adrian Suciu 24:dae7123d432a 59 public:
Adrian Suciu 24:dae7123d432a 60 typedef enum {
Adrian Suciu 24:dae7123d432a 61 ZERO_SCALE_CALIBRATION, ///< Calibration of the zero scale value
Adrian Suciu 24:dae7123d432a 62 FULL_SCALE_CALIBRATION, ///< Calibration of the full scale value
Adrian Suciu 24:dae7123d432a 63 COMPUTE_UNITS_PER_BIT ///< Units per LSB computation
Adrian Suciu 24:dae7123d432a 64 } CalibrationStep_t;
Adrian Suciu 24:dae7123d432a 65
Adrian Suciu 24:dae7123d432a 66 CN0216(PinName CSAD7791 = D8, PinName MOSI = SPI_MOSI, PinName MISO = SPI_MISO, PinName SCK = SPI_SCK);
Adrian Suciu 24:dae7123d432a 67 void init(float cal_weight = _DEFAULT_CAL_WEIGHT, uint8_t mode_val = _DEFAULT_MODE_VAL, uint8_t filter_val = _DEFAULT_FILTER_VAL);
Adrian Suciu 24:dae7123d432a 68 void calibrate(CalibrationStep_t cal);
Adrian Suciu 24:dae7123d432a 69 float compute_weight(uint32_t data);
Adrian Suciu 24:dae7123d432a 70 uint32_t read_u32();
Adrian Suciu 24:dae7123d432a 71 float read_weight();
Adrian Suciu 24:dae7123d432a 72
Adrian Suciu 24:dae7123d432a 73 private:
Adrian Suciu 24:dae7123d432a 74
Adrian Suciu 24:dae7123d432a 75 const static int _NUMBER_OF_SAMPLES = 20; ///< Number of samples used in calibration
Adrian Suciu 24:dae7123d432a 76 const static int _DEFAULT_MODE_VAL = AD7791::MD1 | AD7791::MD0; // POWERDOWN MODE
Adrian Suciu 24:dae7123d432a 77 const static int _DEFAULT_FILTER_VAL = AD7791::FS0 | AD7791::FS1 | AD7791::FS2;
Adrian Suciu 24:dae7123d432a 78 const static int _DEFAULT_CAL_WEIGHT = 1000.0;
Adrian Suciu 24:dae7123d432a 79
Adrian Suciu 24:dae7123d432a 80 AD7791 ad7791;
Adrian Suciu 24:dae7123d432a 81 float _cal_weight;
Adrian Suciu 24:dae7123d432a 82 uint32_t _zero_scale_value;
Adrian Suciu 24:dae7123d432a 83 uint32_t _full_scale_value;
Adrian Suciu 24:dae7123d432a 84 float _weight_units_per_bit;
Adrian Suciu 24:dae7123d432a 85
Adrian Suciu 24:dae7123d432a 86 };
Adrian Suciu 24:dae7123d432a 87
Adrian Suciu 24:dae7123d432a 88 #endif