mehmet gok / HSPdemoUtils

Utility library for HSP SPo2 HR demo including user interface, board support adn accelerometer.

demoAccelerometer/bmi160_i2c.cpp@0:a12d6976d64c, 2018-12-17 (annotated)

Committer:
gmehmet
Date:
Mon Dec 17 13:58:56 2018 +0300
Revision:
0:a12d6976d64c
create and put source to HSP demo utility repo

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gmehmet 0:a12d6976d64c 1 /**********************************************************************
gmehmet 0:a12d6976d64c 2 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
gmehmet 0:a12d6976d64c 3 *
gmehmet 0:a12d6976d64c 4 * Permission is hereby granted, free of charge, to any person obtaining a
gmehmet 0:a12d6976d64c 5 * copy of this software and associated documentation files (the "Software"),
gmehmet 0:a12d6976d64c 6 * to deal in the Software without restriction, including without limitation
gmehmet 0:a12d6976d64c 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
gmehmet 0:a12d6976d64c 8 * and/or sell copies of the Software, and to permit persons to whom the
gmehmet 0:a12d6976d64c 9 * Software is furnished to do so, subject to the following conditions:
gmehmet 0:a12d6976d64c 10 *
gmehmet 0:a12d6976d64c 11 * The above copyright notice and this permission notice shall be included
gmehmet 0:a12d6976d64c 12 * in all copies or substantial portions of the Software.
gmehmet 0:a12d6976d64c 13 *
gmehmet 0:a12d6976d64c 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
gmehmet 0:a12d6976d64c 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
gmehmet 0:a12d6976d64c 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
gmehmet 0:a12d6976d64c 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
gmehmet 0:a12d6976d64c 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
gmehmet 0:a12d6976d64c 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
gmehmet 0:a12d6976d64c 20 * OTHER DEALINGS IN THE SOFTWARE.
gmehmet 0:a12d6976d64c 21 *
gmehmet 0:a12d6976d64c 22 * Except as contained in this notice, the name of Maxim Integrated
gmehmet 0:a12d6976d64c 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
gmehmet 0:a12d6976d64c 24 * Products, Inc. Branding Policy.
gmehmet 0:a12d6976d64c 25 *
gmehmet 0:a12d6976d64c 26 * The mere transfer of this software does not imply any licenses
gmehmet 0:a12d6976d64c 27 * of trade secrets, proprietary technology, copyrights, patents,
gmehmet 0:a12d6976d64c 28 * trademarks, maskwork rights, or any other form of intellectual
gmehmet 0:a12d6976d64c 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
gmehmet 0:a12d6976d64c 30 * ownership rights.
gmehmet 0:a12d6976d64c 31 **********************************************************************/
gmehmet 0:a12d6976d64c 32
gmehmet 0:a12d6976d64c 33
gmehmet 0:a12d6976d64c 34 #include "bmi160.h"
gmehmet 0:a12d6976d64c 35
gmehmet 0:a12d6976d64c 36
gmehmet 0:a12d6976d64c 37 //*****************************************************************************
gmehmet 0:a12d6976d64c 38 BMI160_I2C::BMI160_I2C(I2C *i2cBus, uint8_t i2cAdrs)
gmehmet 0:a12d6976d64c 39 :m_i2cBus(i2cBus), m_Wadrs(i2cAdrs << 1), m_Radrs((i2cAdrs << 1) | 1)
gmehmet 0:a12d6976d64c 40 {
gmehmet 0:a12d6976d64c 41
gmehmet 0:a12d6976d64c 42 }
gmehmet 0:a12d6976d64c 43
gmehmet 0:a12d6976d64c 44 BMI160_I2C::BMI160_I2C(I2C *i2cBus, uint8_t i2cAdrs, InterruptIn *int_pin)
gmehmet 0:a12d6976d64c 45 :m_i2cBus(i2cBus), m_Wadrs(i2cAdrs << 1), m_Radrs((i2cAdrs << 1) | 1), BMI160(int_pin)
gmehmet 0:a12d6976d64c 46 {
gmehmet 0:a12d6976d64c 47
gmehmet 0:a12d6976d64c 48 }
gmehmet 0:a12d6976d64c 49
gmehmet 0:a12d6976d64c 50 //*****************************************************************************
gmehmet 0:a12d6976d64c 51 int32_t BMI160_I2C::readRegister(Registers reg, uint8_t *data)
gmehmet 0:a12d6976d64c 52 {
gmehmet 0:a12d6976d64c 53 int32_t rtnVal = -1;
gmehmet 0:a12d6976d64c 54 char packet[] = {static_cast<char>(reg)};
gmehmet 0:a12d6976d64c 55
gmehmet 0:a12d6976d64c 56 if(m_i2cBus->write(m_Wadrs, packet, 1) == 0)
gmehmet 0:a12d6976d64c 57 {
gmehmet 0:a12d6976d64c 58 rtnVal = m_i2cBus->read(m_Radrs, reinterpret_cast<char *>(data), 1);
gmehmet 0:a12d6976d64c 59 }
gmehmet 0:a12d6976d64c 60
gmehmet 0:a12d6976d64c 61 return rtnVal;
gmehmet 0:a12d6976d64c 62 }
gmehmet 0:a12d6976d64c 63
gmehmet 0:a12d6976d64c 64
gmehmet 0:a12d6976d64c 65 //*****************************************************************************
gmehmet 0:a12d6976d64c 66 int32_t BMI160_I2C::writeRegister(Registers reg, const uint8_t data)
gmehmet 0:a12d6976d64c 67 {
gmehmet 0:a12d6976d64c 68 char packet[] = {static_cast<char>(reg), static_cast<char>(data)};
gmehmet 0:a12d6976d64c 69
gmehmet 0:a12d6976d64c 70 return m_i2cBus->write(m_Wadrs, packet, sizeof(packet));
gmehmet 0:a12d6976d64c 71 }
gmehmet 0:a12d6976d64c 72
gmehmet 0:a12d6976d64c 73
gmehmet 0:a12d6976d64c 74 //*****************************************************************************
gmehmet 0:a12d6976d64c 75 int32_t BMI160_I2C::readBlock(Registers startReg, Registers stopReg,
gmehmet 0:a12d6976d64c 76 uint8_t *data)
gmehmet 0:a12d6976d64c 77 {
gmehmet 0:a12d6976d64c 78 int32_t rtnVal = -1;
gmehmet 0:a12d6976d64c 79 int32_t numBytes = ((stopReg - startReg) + 1);
gmehmet 0:a12d6976d64c 80 char packet[] = {static_cast<char>(startReg)};
gmehmet 0:a12d6976d64c 81
gmehmet 0:a12d6976d64c 82 if(m_i2cBus->write(m_Wadrs, packet, 1) == 0)
gmehmet 0:a12d6976d64c 83 {
gmehmet 0:a12d6976d64c 84 rtnVal = m_i2cBus->read(m_Radrs, reinterpret_cast<char *>(data), numBytes);
gmehmet 0:a12d6976d64c 85 }
gmehmet 0:a12d6976d64c 86
gmehmet 0:a12d6976d64c 87 return rtnVal;
gmehmet 0:a12d6976d64c 88 }
gmehmet 0:a12d6976d64c 89
gmehmet 0:a12d6976d64c 90
gmehmet 0:a12d6976d64c 91 //*****************************************************************************
gmehmet 0:a12d6976d64c 92 int32_t BMI160_I2C::writeBlock(Registers startReg, Registers stopReg,
gmehmet 0:a12d6976d64c 93 const uint8_t *data)
gmehmet 0:a12d6976d64c 94 {
gmehmet 0:a12d6976d64c 95 int32_t numBytes = ((stopReg - startReg) + 1);
gmehmet 0:a12d6976d64c 96 char packet[numBytes + 1];
gmehmet 0:a12d6976d64c 97
gmehmet 0:a12d6976d64c 98 packet[0] = static_cast<char>(startReg);
gmehmet 0:a12d6976d64c 99
gmehmet 0:a12d6976d64c 100 memcpy(packet + 1, data, numBytes);
gmehmet 0:a12d6976d64c 101
gmehmet 0:a12d6976d64c 102 return m_i2cBus->write(m_Wadrs, packet, sizeof(packet));
gmehmet 0:a12d6976d64c 103 }