Diff: MMA8451Q8.cpp

Revision:

8:6a75e7aec482

Parent:

7:ed7e11d269f8

--- a/MMA8451Q8.cpp	Wed Jan 28 21:39:04 2015 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,107 +0,0 @@
-/* Copyright (c) 2010-2011 mbed.org, MIT License
-*
-* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
-* and associated documentation files (the "Software"), to deal in the Software without
-* restriction, including without limitation the rights to use, copy, modify, merge, publish,
-* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
-* Software is furnished to do so, subject to the following conditions:
-*
-* The above copyright notice and this permission notice shall be included in all copies or
-* substantial portions of the Software.
-*
-* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
-* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-// Modify to change full scale gravity range 141207 sc
-
-
-#include "MMA8451Q8.h"
-
-#define REG_WHO_AM_I      0x0D
-#define REG_CTRL_REG_1    0x2A
-#define REG_OUT_X_MSB     0x01
-#define REG_OUT_Y_MSB     0x03
-#define REG_OUT_Z_MSB     0x05
-#define XYZ_DATA_CFG      0x0E
-
-#define UINT14_MAX        16383
-
-#define MAX_2G            0x00
-#define MAX_4G            0x01
-#define MAX_8G            0x02
-
-#define NUM_DATA            2
-#define GSCALING          1024.0
-#define ADDRESS_INDEX       0
-#define DATA_INDEX          1
-
-float gScaling[3] = {4095.0,2048.0,1024.0}; //scaling for acceleration of gravity values
-
-MMA8451Q::MMA8451Q(PinName sda, PinName scl, int addr) : m_i2c(sda, scl), m_addr(addr) {
-    // activate the peripheral
-    uint8_t data[2] = {REG_CTRL_REG_1, 0x01};
-    writeRegs(data, 2);
-}
-
-MMA8451Q::~MMA8451Q() { }
-
-uint8_t MMA8451Q::getWhoAmI() {
-    uint8_t who_am_i = 0;
-    readRegs(REG_WHO_AM_I, &who_am_i, 1);
-    return who_am_i;
-}
-void MMA8451Q::setGLimit(int gSelect) {   
-    uint8_t data[NUM_DATA] = {REG_CTRL_REG_1, 0x00};
-    gChosen = gSelect;
-    writeRegs(data, NUM_DATA); // put in standby
-    data[ADDRESS_INDEX ] = XYZ_DATA_CFG;
-    data[DATA_INDEX] = gChosen;
-    writeRegs(data, 2);// change g limit
-    data[ADDRESS_INDEX ] = REG_CTRL_REG_1;
-    data[DATA_INDEX] = 0x01;
-    writeRegs(data, 2); // make active
-}
-
-float MMA8451Q::getAccX() {
-    return (float(getAccAxis(REG_OUT_X_MSB))/gScaling[gChosen]);
-}
-
-
-float MMA8451Q::getAccY() {
-    return (float(getAccAxis(REG_OUT_Y_MSB))/gScaling[gChosen]);
-}
-
-float MMA8451Q::getAccZ() {
-    return (float(getAccAxis(REG_OUT_Z_MSB))/gScaling[gChosen]);
-}
-
-void MMA8451Q::getAccAllAxis(float * res) {
-    res[0] = getAccX();
-    res[1] = getAccY();
-    res[2] = getAccZ();
-}
-
-int16_t MMA8451Q::getAccAxis(uint8_t addr) {
-    int16_t acc;
-    uint8_t res[2];
-    readRegs(addr, res, 2);
-
-    acc = (res[0] << 6) | (res[1] >> 2);
-    if (acc > UINT14_MAX/2)
-        acc -= UINT14_MAX;
-
-    return acc;
-}
-
-void MMA8451Q::readRegs(int addr, uint8_t * data, int len) {
-    char t[1] = {addr};
-    m_i2c.write(m_addr, t, 1, true);
-    m_i2c.read(m_addr, (char *)data, len);
-}
-
-void MMA8451Q::writeRegs(uint8_t * data, int len) {
-    m_i2c.write(m_addr, (char *)data, len);
-}