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

examples/CN0216_example/main.cpp@33:c3ec596a29c2, 2016-11-07 (annotated)

Committer:
Adrian Suciu
Date:
Mon Nov 07 16:27:12 2016 +0200
Revision:
33:c3ec596a29c2
Parent:
24:dae7123d432a 
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 main.cpp
Adrian Suciu 24:dae7123d432a 3 * @brief Main file for the CN0357-example project
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-CN0357-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 #include "mbed.h"
Adrian Suciu 24:dae7123d432a 48 #include "CN0216.h"
Adrian Suciu 24:dae7123d432a 49
Adrian Suciu 24:dae7123d432a 50 const float CAL_WEIGHT = (500.0);
Adrian Suciu 24:dae7123d432a 51
Adrian Suciu 24:dae7123d432a 52
Adrian Suciu 24:dae7123d432a 53 Serial pc(USBTX, USBRX); ///< Serial interface to the pc
Adrian Suciu 24:dae7123d432a 54
Adrian Suciu 24:dae7123d432a 55 void flush_serial_buffer(void)
Adrian Suciu 24:dae7123d432a 56 {
Adrian Suciu 24:dae7123d432a 57 while (pc.readable()) pc.getc();
Adrian Suciu 24:dae7123d432a 58 return;
Adrian Suciu 24:dae7123d432a 59 }
Adrian Suciu 24:dae7123d432a 60
Adrian Suciu 24:dae7123d432a 61 void display_data(uint32_t data, float weight, uint64_t timer)
Adrian Suciu 24:dae7123d432a 62 {
Adrian Suciu 24:dae7123d432a 63 pc.printf("\r\nADC Input Voltage input = %x V", data); /* Send valid voltage input value */
Adrian Suciu 24:dae7123d432a 64 pc.printf("\r\nSensor Input Weight = %f grams", weight); /* Send valid grams value */
Adrian Suciu 24:dae7123d432a 65
Adrian Suciu 24:dae7123d432a 66
Adrian Suciu 24:dae7123d432a 67 /* pc.printf("%d ",timer);
Adrian Suciu 24:dae7123d432a 68 pc.printf("%x ",data);
Adrian Suciu 24:dae7123d432a 69 pc.printf("%f ",weight);*/
Adrian Suciu 24:dae7123d432a 70 pc.printf("\r\n");
Adrian Suciu 24:dae7123d432a 71 }
Adrian Suciu 24:dae7123d432a 72
Adrian Suciu 24:dae7123d432a 73 /**
Adrian Suciu 24:dae7123d432a 74 * Project entry-point - initializes the CN0216 shield, reads the data when the ADC is ready and outputs the sensor value
Adrian Suciu 24:dae7123d432a 75 */
Adrian Suciu 24:dae7123d432a 76
Adrian Suciu 24:dae7123d432a 77 #define SINGLE_CONVERSION
Adrian Suciu 24:dae7123d432a 78 //#define CONTINOUS_CONVERSION
Adrian Suciu 24:dae7123d432a 79
Adrian Suciu 24:dae7123d432a 80 int main()
Adrian Suciu 24:dae7123d432a 81 {
Adrian Suciu 24:dae7123d432a 82 /* Main variables */
Adrian Suciu 24:dae7123d432a 83 //t.start();
Adrian Suciu 24:dae7123d432a 84 CN0216 cn0216;
Adrian Suciu 24:dae7123d432a 85 #ifdef SINGLE_CONVERSION
Adrian Suciu 24:dae7123d432a 86 cn0216.init(CAL_WEIGHT);
Adrian Suciu 24:dae7123d432a 87 #elif defined CONTINOUS_CONVERSION
Adrian Suciu 24:dae7123d432a 88 cn0216.init(CAL_WEIGHT, 0x08, 0x07);
Adrian Suciu 24:dae7123d432a 89 #else
Adrian Suciu 24:dae7123d432a 90 #error define SINGLE_CONVERSION or CONTINOUS_CONVERSION, but not both
Adrian Suciu 24:dae7123d432a 91 #endif
Adrian Suciu 24:dae7123d432a 92 /* Calibration sequence */
Adrian Suciu 24:dae7123d432a 93
Adrian Suciu 24:dae7123d432a 94 pc.printf("\r\n Calibrating zero scale. Remove all weights from scale. Press any key to begin ..");
Adrian Suciu 24:dae7123d432a 95 while(!pc.readable());
Adrian Suciu 24:dae7123d432a 96 flush_serial_buffer();
Adrian Suciu 24:dae7123d432a 97 pc.printf("\r\n Calibrating . . . ");
Adrian Suciu 24:dae7123d432a 98 cn0216.calibrate(CN0216::ZERO_SCALE_CALIBRATION);
Adrian Suciu 24:dae7123d432a 99 pc.printf("done ! ");
Adrian Suciu 24:dae7123d432a 100
Adrian Suciu 24:dae7123d432a 101 pc.printf("\r\n Calibrating full scale. Put calibration weight on scale. Press any key to begin ..");
Adrian Suciu 24:dae7123d432a 102 while(!pc.readable());
Adrian Suciu 24:dae7123d432a 103 flush_serial_buffer();
Adrian Suciu 24:dae7123d432a 104 pc.printf("\r\n Calibrating . . . ");
Adrian Suciu 24:dae7123d432a 105 cn0216.calibrate(CN0216::FULL_SCALE_CALIBRATION);
Adrian Suciu 24:dae7123d432a 106 pc.printf("done ! ");
Adrian Suciu 24:dae7123d432a 107
Adrian Suciu 24:dae7123d432a 108 pc.printf("\r\n Calibration successful ");
Adrian Suciu 24:dae7123d432a 109 cn0216.calibrate(CN0216::COMPUTE_UNITS_PER_BIT);
Adrian Suciu 24:dae7123d432a 110
Adrian Suciu 24:dae7123d432a 111 /* Infinite loop */
Adrian Suciu 24:dae7123d432a 112 uint64_t timer = 0;
Adrian Suciu 24:dae7123d432a 113 while (1) {
Adrian Suciu 24:dae7123d432a 114 wait_ms(1000);
Adrian Suciu 24:dae7123d432a 115
Adrian Suciu 24:dae7123d432a 116 uint32_t data = cn0216.read_u32();
Adrian Suciu 24:dae7123d432a 117 float weight = cn0216.compute_weight(data); // Convert ADC data to voltage
Adrian Suciu 24:dae7123d432a 118 display_data(data, weight, timer); // Display data thru UART
Adrian Suciu 24:dae7123d432a 119
Adrian Suciu 24:dae7123d432a 120 timer++;
Adrian Suciu 24:dae7123d432a 121 }
Adrian Suciu 24:dae7123d432a 122
Adrian Suciu 24:dae7123d432a 123
Adrian Suciu 24:dae7123d432a 124 /* Infinite loop, never returns. */
Adrian Suciu 24:dae7123d432a 125 }
Adrian Suciu 24:dae7123d432a 126