Ian Molesworth
Dependents: ADXL345 TCPspittertobi ADXL345 RS485R_2 ... more
ADXL345_I2C.cpp@1:92fa975dab32, 2011-02-02 (annotated)
- Committer:
- nimbusgb
- Date:
- Wed Feb 02 07:01:39 2011 +0000
- Revision:
- 1:92fa975dab32
- Parent:
- 0:3957077e9775
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| nimbusgb | 0:3957077e9775 | 1 | /** |
| nimbusgb | 0:3957077e9775 | 2 | * @author Jose R. Padron |
| nimbusgb | 0:3957077e9775 | 3 | * |
| nimbusgb | 0:3957077e9775 | 4 | * @section LICENSE |
| nimbusgb | 0:3957077e9775 | 5 | * |
| nimbusgb | 0:3957077e9775 | 6 | * Copyright (c) 2010 ARM Limited |
| nimbusgb | 0:3957077e9775 | 7 | * |
| nimbusgb | 0:3957077e9775 | 8 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| nimbusgb | 0:3957077e9775 | 9 | * of this software and associated documentation files (the "Software"), to deal |
| nimbusgb | 0:3957077e9775 | 10 | * in the Software without restriction, including without limitation the rights |
| nimbusgb | 0:3957077e9775 | 11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| nimbusgb | 0:3957077e9775 | 12 | * copies of the Software, and to permit persons to whom the Software is |
| nimbusgb | 0:3957077e9775 | 13 | * furnished to do so, subject to the following conditions: |
| nimbusgb | 0:3957077e9775 | 14 | * |
| nimbusgb | 0:3957077e9775 | 15 | * The above copyright notice and this permission notice shall be included in |
| nimbusgb | 0:3957077e9775 | 16 | * all copies or substantial portions of the Software. |
| nimbusgb | 0:3957077e9775 | 17 | * |
| nimbusgb | 0:3957077e9775 | 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| nimbusgb | 0:3957077e9775 | 19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| nimbusgb | 0:3957077e9775 | 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| nimbusgb | 0:3957077e9775 | 21 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| nimbusgb | 0:3957077e9775 | 22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| nimbusgb | 0:3957077e9775 | 23 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| nimbusgb | 0:3957077e9775 | 24 | * THE SOFTWARE. |
| nimbusgb | 0:3957077e9775 | 25 | * |
| nimbusgb | 0:3957077e9775 | 26 | * @section DESCRIPTION |
| nimbusgb | 0:3957077e9775 | 27 | * |
| nimbusgb | 0:3957077e9775 | 28 | * ADXL345, triple axis, digital interface, accelerometer. |
| nimbusgb | 0:3957077e9775 | 29 | * |
| nimbusgb | 0:3957077e9775 | 30 | * Datasheet: |
| nimbusgb | 0:3957077e9775 | 31 | * |
| nimbusgb | 0:3957077e9775 | 32 | * http://www.analog.com/static/imported-files/data_sheets/ADXL345.pdf |
| nimbusgb | 0:3957077e9775 | 33 | */ |
| nimbusgb | 0:3957077e9775 | 34 | |
| nimbusgb | 0:3957077e9775 | 35 | /** |
| nimbusgb | 0:3957077e9775 | 36 | * Includes |
| nimbusgb | 0:3957077e9775 | 37 | */ |
| nimbusgb | 0:3957077e9775 | 38 | #include "ADXL345_I2C.h" |
| nimbusgb | 0:3957077e9775 | 39 | |
| nimbusgb | 0:3957077e9775 | 40 | ADXL345_I2C::ADXL345_I2C(PinName sda, |
| nimbusgb | 0:3957077e9775 | 41 | PinName scl) : i2c_(sda,scl) { |
| nimbusgb | 0:3957077e9775 | 42 | |
| nimbusgb | 0:3957077e9775 | 43 | |
| nimbusgb | 0:3957077e9775 | 44 | //100KHz, as specified by the datasheet. |
| nimbusgb | 0:3957077e9775 | 45 | i2c_.frequency(100000); |
| nimbusgb | 0:3957077e9775 | 46 | wait_us(500); |
| nimbusgb | 0:3957077e9775 | 47 | |
| nimbusgb | 0:3957077e9775 | 48 | } |
| nimbusgb | 0:3957077e9775 | 49 | |
| nimbusgb | 0:3957077e9775 | 50 | char ADXL345_I2C::getDevId(void) { |
| nimbusgb | 0:3957077e9775 | 51 | |
| nimbusgb | 0:3957077e9775 | 52 | return oneByteRead(ADXL345_DEVID_REG); |
| nimbusgb | 0:3957077e9775 | 53 | |
| nimbusgb | 0:3957077e9775 | 54 | } |
| nimbusgb | 0:3957077e9775 | 55 | |
| nimbusgb | 0:3957077e9775 | 56 | int ADXL345_I2C::getTapThreshold(void) { |
| nimbusgb | 0:3957077e9775 | 57 | |
| nimbusgb | 0:3957077e9775 | 58 | return oneByteRead(ADXL345_THRESH_TAP_REG); |
| nimbusgb | 0:3957077e9775 | 59 | |
| nimbusgb | 0:3957077e9775 | 60 | } |
| nimbusgb | 0:3957077e9775 | 61 | |
| nimbusgb | 0:3957077e9775 | 62 | void ADXL345_I2C::setTapThreshold(int threshold) { |
| nimbusgb | 0:3957077e9775 | 63 | |
| nimbusgb | 0:3957077e9775 | 64 | oneByteWrite(ADXL345_THRESH_TAP_REG, threshold); |
| nimbusgb | 0:3957077e9775 | 65 | |
| nimbusgb | 0:3957077e9775 | 66 | } |
| nimbusgb | 0:3957077e9775 | 67 | |
| nimbusgb | 0:3957077e9775 | 68 | int ADXL345_I2C::getOffset(int axis) { |
| nimbusgb | 0:3957077e9775 | 69 | |
| nimbusgb | 0:3957077e9775 | 70 | int address = 0; |
| nimbusgb | 0:3957077e9775 | 71 | |
| nimbusgb | 0:3957077e9775 | 72 | if (axis == ADXL345_X) { |
| nimbusgb | 0:3957077e9775 | 73 | address = ADXL345_OFSX_REG; |
| nimbusgb | 0:3957077e9775 | 74 | } else if (axis == ADXL345_Y) { |
| nimbusgb | 0:3957077e9775 | 75 | address = ADXL345_OFSY_REG; |
| nimbusgb | 0:3957077e9775 | 76 | } else if (axis == ADXL345_Z) { |
| nimbusgb | 0:3957077e9775 | 77 | address = ADXL345_OFSZ_REG; |
| nimbusgb | 0:3957077e9775 | 78 | } |
| nimbusgb | 0:3957077e9775 | 79 | |
| nimbusgb | 0:3957077e9775 | 80 | return oneByteRead(address); |
| nimbusgb | 0:3957077e9775 | 81 | |
| nimbusgb | 0:3957077e9775 | 82 | } |
| nimbusgb | 0:3957077e9775 | 83 | |
| nimbusgb | 0:3957077e9775 | 84 | void ADXL345_I2C::setOffset(int axis, char offset) { |
| nimbusgb | 0:3957077e9775 | 85 | |
| nimbusgb | 0:3957077e9775 | 86 | char address = 0; |
| nimbusgb | 0:3957077e9775 | 87 | |
| nimbusgb | 0:3957077e9775 | 88 | if (axis == ADXL345_X) { |
| nimbusgb | 0:3957077e9775 | 89 | address = ADXL345_OFSX_REG; |
| nimbusgb | 0:3957077e9775 | 90 | } else if (axis == ADXL345_Y) { |
| nimbusgb | 0:3957077e9775 | 91 | address = ADXL345_OFSY_REG; |
| nimbusgb | 0:3957077e9775 | 92 | } else if (axis == ADXL345_Z) { |
| nimbusgb | 0:3957077e9775 | 93 | address = ADXL345_OFSZ_REG; |
| nimbusgb | 0:3957077e9775 | 94 | } |
| nimbusgb | 0:3957077e9775 | 95 | |
| nimbusgb | 0:3957077e9775 | 96 | return oneByteWrite(address, offset); |
| nimbusgb | 0:3957077e9775 | 97 | |
| nimbusgb | 0:3957077e9775 | 98 | } |
| nimbusgb | 0:3957077e9775 | 99 | |
| nimbusgb | 0:3957077e9775 | 100 | int ADXL345_I2C::getTapDuration(void) { |
| nimbusgb | 0:3957077e9775 | 101 | |
| nimbusgb | 0:3957077e9775 | 102 | return oneByteRead(ADXL345_DUR_REG)*625; |
| nimbusgb | 0:3957077e9775 | 103 | |
| nimbusgb | 0:3957077e9775 | 104 | } |
| nimbusgb | 0:3957077e9775 | 105 | |
| nimbusgb | 0:3957077e9775 | 106 | void ADXL345_I2C::setTapDuration(int duration_us) { |
| nimbusgb | 0:3957077e9775 | 107 | |
| nimbusgb | 0:3957077e9775 | 108 | int tapDuration = duration_us / 625; |
| nimbusgb | 0:3957077e9775 | 109 | |
| nimbusgb | 0:3957077e9775 | 110 | oneByteWrite(ADXL345_DUR_REG, tapDuration); |
| nimbusgb | 0:3957077e9775 | 111 | |
| nimbusgb | 0:3957077e9775 | 112 | } |
| nimbusgb | 0:3957077e9775 | 113 | |
| nimbusgb | 0:3957077e9775 | 114 | float ADXL345_I2C::getTapLatency(void) { |
| nimbusgb | 0:3957077e9775 | 115 | |
| nimbusgb | 0:3957077e9775 | 116 | return oneByteRead(ADXL345_LATENT_REG)*1.25; |
| nimbusgb | 0:3957077e9775 | 117 | |
| nimbusgb | 0:3957077e9775 | 118 | } |
| nimbusgb | 0:3957077e9775 | 119 | |
| nimbusgb | 0:3957077e9775 | 120 | void ADXL345_I2C::setTapLatency(int latency_ms) { |
| nimbusgb | 0:3957077e9775 | 121 | |
| nimbusgb | 0:3957077e9775 | 122 | int tapLatency = latency_ms / 1.25; |
| nimbusgb | 0:3957077e9775 | 123 | |
| nimbusgb | 0:3957077e9775 | 124 | oneByteWrite(ADXL345_LATENT_REG, tapLatency); |
| nimbusgb | 0:3957077e9775 | 125 | |
| nimbusgb | 0:3957077e9775 | 126 | } |
| nimbusgb | 0:3957077e9775 | 127 | |
| nimbusgb | 0:3957077e9775 | 128 | float ADXL345_I2C::getWindowTime(void) { |
| nimbusgb | 0:3957077e9775 | 129 | |
| nimbusgb | 0:3957077e9775 | 130 | return oneByteRead(ADXL345_WINDOW_REG)*1.25; |
| nimbusgb | 0:3957077e9775 | 131 | |
| nimbusgb | 0:3957077e9775 | 132 | } |
| nimbusgb | 0:3957077e9775 | 133 | |
| nimbusgb | 0:3957077e9775 | 134 | void ADXL345_I2C::setWindowTime(int window_ms) { |
| nimbusgb | 0:3957077e9775 | 135 | |
| nimbusgb | 0:3957077e9775 | 136 | int windowTime = window_ms / 1.25; |
| nimbusgb | 0:3957077e9775 | 137 | |
| nimbusgb | 0:3957077e9775 | 138 | oneByteWrite(ADXL345_WINDOW_REG, windowTime); |
| nimbusgb | 0:3957077e9775 | 139 | |
| nimbusgb | 0:3957077e9775 | 140 | } |
| nimbusgb | 0:3957077e9775 | 141 | |
| nimbusgb | 0:3957077e9775 | 142 | int ADXL345_I2C::getActivityThreshold(void) { |
| nimbusgb | 0:3957077e9775 | 143 | |
| nimbusgb | 0:3957077e9775 | 144 | return oneByteRead(ADXL345_THRESH_ACT_REG); |
| nimbusgb | 0:3957077e9775 | 145 | |
| nimbusgb | 0:3957077e9775 | 146 | } |
| nimbusgb | 0:3957077e9775 | 147 | |
| nimbusgb | 0:3957077e9775 | 148 | void ADXL345_I2C::setActivityThreshold(int threshold) { |
| nimbusgb | 0:3957077e9775 | 149 | |
| nimbusgb | 0:3957077e9775 | 150 | oneByteWrite(ADXL345_THRESH_ACT_REG, threshold); |
| nimbusgb | 0:3957077e9775 | 151 | |
| nimbusgb | 0:3957077e9775 | 152 | } |
| nimbusgb | 0:3957077e9775 | 153 | |
| nimbusgb | 0:3957077e9775 | 154 | int ADXL345_I2C::getInactivityThreshold(void) { |
| nimbusgb | 0:3957077e9775 | 155 | |
| nimbusgb | 0:3957077e9775 | 156 | return oneByteRead(ADXL345_THRESH_INACT_REG); |
| nimbusgb | 0:3957077e9775 | 157 | |
| nimbusgb | 0:3957077e9775 | 158 | } |
| nimbusgb | 0:3957077e9775 | 159 | |
| nimbusgb | 0:3957077e9775 | 160 | void ADXL345_I2C::setInactivityThreshold(int threshold) { |
| nimbusgb | 0:3957077e9775 | 161 | |
| nimbusgb | 0:3957077e9775 | 162 | return oneByteWrite(ADXL345_THRESH_INACT_REG, threshold); |
| nimbusgb | 0:3957077e9775 | 163 | |
| nimbusgb | 0:3957077e9775 | 164 | } |
| nimbusgb | 0:3957077e9775 | 165 | |
| nimbusgb | 0:3957077e9775 | 166 | int ADXL345_I2C::getTimeInactivity(void) { |
| nimbusgb | 0:3957077e9775 | 167 | |
| nimbusgb | 0:3957077e9775 | 168 | return oneByteRead(ADXL345_TIME_INACT_REG); |
| nimbusgb | 0:3957077e9775 | 169 | |
| nimbusgb | 0:3957077e9775 | 170 | } |
| nimbusgb | 0:3957077e9775 | 171 | |
| nimbusgb | 0:3957077e9775 | 172 | void ADXL345_I2C::setTimeInactivity(int timeInactivity) { |
| nimbusgb | 0:3957077e9775 | 173 | |
| nimbusgb | 0:3957077e9775 | 174 | oneByteWrite(ADXL345_TIME_INACT_REG, timeInactivity); |
| nimbusgb | 0:3957077e9775 | 175 | |
| nimbusgb | 0:3957077e9775 | 176 | } |
| nimbusgb | 0:3957077e9775 | 177 | |
| nimbusgb | 0:3957077e9775 | 178 | int ADXL345_I2C::getActivityInactivityControl(void) { |
| nimbusgb | 0:3957077e9775 | 179 | |
| nimbusgb | 0:3957077e9775 | 180 | return oneByteRead(ADXL345_ACT_INACT_CTL_REG); |
| nimbusgb | 0:3957077e9775 | 181 | |
| nimbusgb | 0:3957077e9775 | 182 | } |
| nimbusgb | 0:3957077e9775 | 183 | |
| nimbusgb | 0:3957077e9775 | 184 | void ADXL345_I2C::setActivityInactivityControl(int settings) { |
| nimbusgb | 0:3957077e9775 | 185 | |
| nimbusgb | 0:3957077e9775 | 186 | oneByteWrite(ADXL345_ACT_INACT_CTL_REG, settings); |
| nimbusgb | 0:3957077e9775 | 187 | |
| nimbusgb | 0:3957077e9775 | 188 | } |
| nimbusgb | 0:3957077e9775 | 189 | |
| nimbusgb | 0:3957077e9775 | 190 | int ADXL345_I2C::getFreefallThreshold(void) { |
| nimbusgb | 0:3957077e9775 | 191 | |
| nimbusgb | 0:3957077e9775 | 192 | return oneByteRead(ADXL345_THRESH_FF_REG); |
| nimbusgb | 0:3957077e9775 | 193 | |
| nimbusgb | 0:3957077e9775 | 194 | } |
| nimbusgb | 0:3957077e9775 | 195 | |
| nimbusgb | 0:3957077e9775 | 196 | void ADXL345_I2C::setFreefallThreshold(int threshold) { |
| nimbusgb | 0:3957077e9775 | 197 | |
| nimbusgb | 0:3957077e9775 | 198 | oneByteWrite(ADXL345_THRESH_FF_REG, threshold); |
| nimbusgb | 0:3957077e9775 | 199 | |
| nimbusgb | 0:3957077e9775 | 200 | } |
| nimbusgb | 0:3957077e9775 | 201 | |
| nimbusgb | 0:3957077e9775 | 202 | int ADXL345_I2C::getFreefallTime(void) { |
| nimbusgb | 0:3957077e9775 | 203 | |
| nimbusgb | 0:3957077e9775 | 204 | return oneByteRead(ADXL345_TIME_FF_REG)*5; |
| nimbusgb | 0:3957077e9775 | 205 | |
| nimbusgb | 0:3957077e9775 | 206 | } |
| nimbusgb | 0:3957077e9775 | 207 | |
| nimbusgb | 0:3957077e9775 | 208 | void ADXL345_I2C::setFreefallTime(int freefallTime_ms) { |
| nimbusgb | 0:3957077e9775 | 209 | |
| nimbusgb | 0:3957077e9775 | 210 | int freefallTime = freefallTime_ms / 5; |
| nimbusgb | 0:3957077e9775 | 211 | |
| nimbusgb | 0:3957077e9775 | 212 | oneByteWrite(ADXL345_TIME_FF_REG, freefallTime); |
| nimbusgb | 0:3957077e9775 | 213 | |
| nimbusgb | 0:3957077e9775 | 214 | } |
| nimbusgb | 0:3957077e9775 | 215 | |
| nimbusgb | 0:3957077e9775 | 216 | int ADXL345_I2C::getTapAxisControl(void) { |
| nimbusgb | 0:3957077e9775 | 217 | |
| nimbusgb | 0:3957077e9775 | 218 | return oneByteRead(ADXL345_TAP_AXES_REG); |
| nimbusgb | 0:3957077e9775 | 219 | |
| nimbusgb | 0:3957077e9775 | 220 | } |
| nimbusgb | 0:3957077e9775 | 221 | |
| nimbusgb | 0:3957077e9775 | 222 | void ADXL345_I2C::setTapAxisControl(int settings) { |
| nimbusgb | 0:3957077e9775 | 223 | |
| nimbusgb | 0:3957077e9775 | 224 | oneByteWrite(ADXL345_TAP_AXES_REG, settings); |
| nimbusgb | 0:3957077e9775 | 225 | |
| nimbusgb | 0:3957077e9775 | 226 | } |
| nimbusgb | 0:3957077e9775 | 227 | |
| nimbusgb | 0:3957077e9775 | 228 | int ADXL345_I2C::getTapSource(void) { |
| nimbusgb | 0:3957077e9775 | 229 | |
| nimbusgb | 0:3957077e9775 | 230 | return oneByteRead(ADXL345_ACT_TAP_STATUS_REG); |
| nimbusgb | 0:3957077e9775 | 231 | |
| nimbusgb | 0:3957077e9775 | 232 | } |
| nimbusgb | 0:3957077e9775 | 233 | |
| nimbusgb | 0:3957077e9775 | 234 | void ADXL345_I2C::setPowerMode(char mode) { |
| nimbusgb | 0:3957077e9775 | 235 | |
| nimbusgb | 0:3957077e9775 | 236 | //Get the current register contents, so we don't clobber the rate value. |
| nimbusgb | 0:3957077e9775 | 237 | char registerContents = oneByteRead(ADXL345_BW_RATE_REG); |
| nimbusgb | 0:3957077e9775 | 238 | |
| nimbusgb | 0:3957077e9775 | 239 | registerContents = (mode << 4) | registerContents; |
| nimbusgb | 0:3957077e9775 | 240 | |
| nimbusgb | 0:3957077e9775 | 241 | oneByteWrite(ADXL345_BW_RATE_REG, registerContents); |
| nimbusgb | 0:3957077e9775 | 242 | |
| nimbusgb | 0:3957077e9775 | 243 | } |
| nimbusgb | 0:3957077e9775 | 244 | |
| nimbusgb | 0:3957077e9775 | 245 | int ADXL345_I2C::getPowerControl(void) { |
| nimbusgb | 0:3957077e9775 | 246 | |
| nimbusgb | 0:3957077e9775 | 247 | return oneByteRead(ADXL345_POWER_CTL_REG); |
| nimbusgb | 0:3957077e9775 | 248 | |
| nimbusgb | 0:3957077e9775 | 249 | } |
| nimbusgb | 0:3957077e9775 | 250 | |
| nimbusgb | 0:3957077e9775 | 251 | void ADXL345_I2C::setPowerControl(int settings) { |
| nimbusgb | 0:3957077e9775 | 252 | |
| nimbusgb | 0:3957077e9775 | 253 | oneByteWrite(ADXL345_POWER_CTL_REG, settings); |
| nimbusgb | 0:3957077e9775 | 254 | |
| nimbusgb | 0:3957077e9775 | 255 | } |
| nimbusgb | 0:3957077e9775 | 256 | |
| nimbusgb | 0:3957077e9775 | 257 | int ADXL345_I2C::getInterruptEnableControl(void) { |
| nimbusgb | 0:3957077e9775 | 258 | |
| nimbusgb | 0:3957077e9775 | 259 | return oneByteRead(ADXL345_INT_ENABLE_REG); |
| nimbusgb | 0:3957077e9775 | 260 | |
| nimbusgb | 0:3957077e9775 | 261 | } |
| nimbusgb | 0:3957077e9775 | 262 | |
| nimbusgb | 0:3957077e9775 | 263 | void ADXL345_I2C::setInterruptEnableControl(int settings) { |
| nimbusgb | 0:3957077e9775 | 264 | |
| nimbusgb | 0:3957077e9775 | 265 | oneByteWrite(ADXL345_INT_ENABLE_REG, settings); |
| nimbusgb | 0:3957077e9775 | 266 | |
| nimbusgb | 0:3957077e9775 | 267 | } |
| nimbusgb | 0:3957077e9775 | 268 | |
| nimbusgb | 0:3957077e9775 | 269 | int ADXL345_I2C::getInterruptMappingControl(void) { |
| nimbusgb | 0:3957077e9775 | 270 | |
| nimbusgb | 0:3957077e9775 | 271 | return oneByteRead(ADXL345_INT_MAP_REG); |
| nimbusgb | 0:3957077e9775 | 272 | |
| nimbusgb | 0:3957077e9775 | 273 | } |
| nimbusgb | 0:3957077e9775 | 274 | |
| nimbusgb | 0:3957077e9775 | 275 | void ADXL345_I2C::setInterruptMappingControl(int settings) { |
| nimbusgb | 0:3957077e9775 | 276 | |
| nimbusgb | 0:3957077e9775 | 277 | oneByteWrite(ADXL345_INT_MAP_REG, settings); |
| nimbusgb | 0:3957077e9775 | 278 | |
| nimbusgb | 0:3957077e9775 | 279 | } |
| nimbusgb | 0:3957077e9775 | 280 | |
| nimbusgb | 0:3957077e9775 | 281 | int ADXL345_I2C::getInterruptSource(void){ |
| nimbusgb | 0:3957077e9775 | 282 | |
| nimbusgb | 0:3957077e9775 | 283 | return oneByteRead(ADXL345_INT_SOURCE_REG); |
| nimbusgb | 0:3957077e9775 | 284 | |
| nimbusgb | 0:3957077e9775 | 285 | } |
| nimbusgb | 0:3957077e9775 | 286 | |
| nimbusgb | 0:3957077e9775 | 287 | int ADXL345_I2C::getDataFormatControl(void){ |
| nimbusgb | 0:3957077e9775 | 288 | |
| nimbusgb | 0:3957077e9775 | 289 | return oneByteRead(ADXL345_DATA_FORMAT_REG); |
| nimbusgb | 0:3957077e9775 | 290 | |
| nimbusgb | 0:3957077e9775 | 291 | } |
| nimbusgb | 0:3957077e9775 | 292 | |
| nimbusgb | 0:3957077e9775 | 293 | void ADXL345_I2C::setDataFormatControl(int settings){ |
| nimbusgb | 0:3957077e9775 | 294 | |
| nimbusgb | 0:3957077e9775 | 295 | oneByteWrite(ADXL345_DATA_FORMAT_REG, settings); |
| nimbusgb | 0:3957077e9775 | 296 | |
| nimbusgb | 0:3957077e9775 | 297 | } |
| nimbusgb | 0:3957077e9775 | 298 | |
| nimbusgb | 0:3957077e9775 | 299 | void ADXL345_I2C::setDataRate(int rate) { |
| nimbusgb | 0:3957077e9775 | 300 | |
| nimbusgb | 0:3957077e9775 | 301 | //Get the current register contents, so we don't clobber the power bit. |
| nimbusgb | 0:3957077e9775 | 302 | char registerContents = oneByteRead(ADXL345_BW_RATE_REG); |
| nimbusgb | 0:3957077e9775 | 303 | |
| nimbusgb | 0:3957077e9775 | 304 | registerContents &= 0x10; |
| nimbusgb | 0:3957077e9775 | 305 | registerContents |= rate; |
| nimbusgb | 0:3957077e9775 | 306 | |
| nimbusgb | 0:3957077e9775 | 307 | oneByteWrite(ADXL345_BW_RATE_REG, registerContents); |
| nimbusgb | 0:3957077e9775 | 308 | |
| nimbusgb | 0:3957077e9775 | 309 | } |
| nimbusgb | 0:3957077e9775 | 310 | |
| nimbusgb | 0:3957077e9775 | 311 | int ADXL345_I2C::getAx(){ |
| nimbusgb | 0:3957077e9775 | 312 | |
| nimbusgb | 0:3957077e9775 | 313 | char buffer[2]; |
| nimbusgb | 0:3957077e9775 | 314 | |
| nimbusgb | 0:3957077e9775 | 315 | TwoByteRead(ADXL345_DATAX0_REG, buffer); |
| nimbusgb | 0:3957077e9775 | 316 | |
| nimbusgb | 0:3957077e9775 | 317 | return ((int)buffer[1] << 8 | (int)buffer[0]); |
| nimbusgb | 0:3957077e9775 | 318 | } |
| nimbusgb | 0:3957077e9775 | 319 | |
| nimbusgb | 0:3957077e9775 | 320 | |
| nimbusgb | 0:3957077e9775 | 321 | int ADXL345_I2C::getAy(){ |
| nimbusgb | 0:3957077e9775 | 322 | |
| nimbusgb | 0:3957077e9775 | 323 | char buffer[2]; |
| nimbusgb | 0:3957077e9775 | 324 | |
| nimbusgb | 0:3957077e9775 | 325 | TwoByteRead(ADXL345_DATAY0_REG, buffer); |
| nimbusgb | 0:3957077e9775 | 326 | |
| nimbusgb | 0:3957077e9775 | 327 | return ((int)buffer[1] << 8 | (int)buffer[0]); |
| nimbusgb | 0:3957077e9775 | 328 | } |
| nimbusgb | 0:3957077e9775 | 329 | |
| nimbusgb | 0:3957077e9775 | 330 | int ADXL345_I2C::getAz(){ |
| nimbusgb | 0:3957077e9775 | 331 | |
| nimbusgb | 0:3957077e9775 | 332 | char buffer[2]; |
| nimbusgb | 0:3957077e9775 | 333 | |
| nimbusgb | 0:3957077e9775 | 334 | TwoByteRead(ADXL345_DATAZ0_REG, buffer); |
| nimbusgb | 0:3957077e9775 | 335 | |
| nimbusgb | 0:3957077e9775 | 336 | return ((int)buffer[1] << 8 | (int)buffer[0]); |
| nimbusgb | 0:3957077e9775 | 337 | } |
| nimbusgb | 0:3957077e9775 | 338 | |
| nimbusgb | 0:3957077e9775 | 339 | |
| nimbusgb | 0:3957077e9775 | 340 | |
| nimbusgb | 0:3957077e9775 | 341 | void ADXL345_I2C::getOutput(int* readings){ |
| nimbusgb | 0:3957077e9775 | 342 | |
| nimbusgb | 0:3957077e9775 | 343 | char buffer[2]; |
| nimbusgb | 0:3957077e9775 | 344 | |
| nimbusgb | 0:3957077e9775 | 345 | TwoByteRead(ADXL345_DATAX0_REG, buffer); |
| nimbusgb | 0:3957077e9775 | 346 | readings[0] = (int)buffer[1] << 8 | (int)buffer[0]; |
| nimbusgb | 0:3957077e9775 | 347 | TwoByteRead(ADXL345_DATAY0_REG, buffer); |
| nimbusgb | 0:3957077e9775 | 348 | readings[1] = (int)buffer[1] << 8 | (int)buffer[0]; |
| nimbusgb | 0:3957077e9775 | 349 | TwoByteRead(ADXL345_DATAZ0_REG, buffer); |
| nimbusgb | 0:3957077e9775 | 350 | readings[2] = (int)buffer[1] << 8 | (int)buffer[0]; |
| nimbusgb | 0:3957077e9775 | 351 | |
| nimbusgb | 0:3957077e9775 | 352 | } |
| nimbusgb | 0:3957077e9775 | 353 | |
| nimbusgb | 0:3957077e9775 | 354 | int ADXL345_I2C::getFifoControl(void){ |
| nimbusgb | 0:3957077e9775 | 355 | |
| nimbusgb | 0:3957077e9775 | 356 | return oneByteRead(ADXL345_FIFO_CTL); |
| nimbusgb | 0:3957077e9775 | 357 | |
| nimbusgb | 0:3957077e9775 | 358 | } |
| nimbusgb | 0:3957077e9775 | 359 | |
| nimbusgb | 0:3957077e9775 | 360 | void ADXL345_I2C::setFifoControl(int settings){ |
| nimbusgb | 0:3957077e9775 | 361 | |
| nimbusgb | 0:3957077e9775 | 362 | oneByteWrite(ADXL345_FIFO_STATUS, settings); |
| nimbusgb | 0:3957077e9775 | 363 | |
| nimbusgb | 0:3957077e9775 | 364 | } |
| nimbusgb | 0:3957077e9775 | 365 | |
| nimbusgb | 0:3957077e9775 | 366 | int ADXL345_I2C::getFifoStatus(void){ |
| nimbusgb | 0:3957077e9775 | 367 | |
| nimbusgb | 0:3957077e9775 | 368 | return oneByteRead(ADXL345_FIFO_STATUS); |
| nimbusgb | 0:3957077e9775 | 369 | |
| nimbusgb | 0:3957077e9775 | 370 | } |
| nimbusgb | 0:3957077e9775 | 371 | |
| nimbusgb | 0:3957077e9775 | 372 | char ADXL345_I2C::oneByteRead(char address) { |
| nimbusgb | 0:3957077e9775 | 373 | |
| nimbusgb | 0:3957077e9775 | 374 | |
| nimbusgb | 0:3957077e9775 | 375 | char rx[1]; |
| nimbusgb | 0:3957077e9775 | 376 | char tx[1]; |
| nimbusgb | 0:3957077e9775 | 377 | |
| nimbusgb | 0:3957077e9775 | 378 | // nCS_ = 1; |
| nimbusgb | 0:3957077e9775 | 379 | tx[0]=address; |
| nimbusgb | 0:3957077e9775 | 380 | |
| nimbusgb | 0:3957077e9775 | 381 | |
| nimbusgb | 0:3957077e9775 | 382 | i2c_.write(ADXL345_I2C_WRITE, tx,1); |
| nimbusgb | 0:3957077e9775 | 383 | i2c_.read(ADXL345_I2C_READ,rx,1); |
| nimbusgb | 0:3957077e9775 | 384 | |
| nimbusgb | 0:3957077e9775 | 385 | //nCS_ = 0; |
| nimbusgb | 0:3957077e9775 | 386 | return rx[0]; |
| nimbusgb | 0:3957077e9775 | 387 | |
| nimbusgb | 0:3957077e9775 | 388 | } |
| nimbusgb | 0:3957077e9775 | 389 | |
| nimbusgb | 0:3957077e9775 | 390 | void ADXL345_I2C::oneByteWrite(char address, char data) { |
| nimbusgb | 0:3957077e9775 | 391 | // nCS_ = 1; |
| nimbusgb | 0:3957077e9775 | 392 | char tx[2]; |
| nimbusgb | 0:3957077e9775 | 393 | |
| nimbusgb | 0:3957077e9775 | 394 | tx[0]=address; |
| nimbusgb | 0:3957077e9775 | 395 | tx[1]=data; |
| nimbusgb | 0:3957077e9775 | 396 | |
| nimbusgb | 0:3957077e9775 | 397 | i2c_.write(ADXL345_I2C_WRITE,tx,2); |
| nimbusgb | 0:3957077e9775 | 398 | |
| nimbusgb | 0:3957077e9775 | 399 | //nCS_ = 0; |
| nimbusgb | 0:3957077e9775 | 400 | } |
| nimbusgb | 0:3957077e9775 | 401 | |
| nimbusgb | 0:3957077e9775 | 402 | void ADXL345_I2C::TwoByteRead(char startAddress, char* buffer) { |
| nimbusgb | 0:3957077e9775 | 403 | |
| nimbusgb | 0:3957077e9775 | 404 | |
| nimbusgb | 0:3957077e9775 | 405 | // nCS_ = 1; |
| nimbusgb | 0:3957077e9775 | 406 | //Send address to start reading from. |
| nimbusgb | 0:3957077e9775 | 407 | char tx[1]; |
| nimbusgb | 0:3957077e9775 | 408 | tx[0]=startAddress; |
| nimbusgb | 0:3957077e9775 | 409 | i2c_.write(ADXL345_I2C_WRITE,tx,1); |
| nimbusgb | 0:3957077e9775 | 410 | i2c_.read(ADXL345_I2C_READ,buffer,2); |
| nimbusgb | 0:3957077e9775 | 411 | |
| nimbusgb | 0:3957077e9775 | 412 | //nCS_ = 0; |
| nimbusgb | 0:3957077e9775 | 413 | } |
| nimbusgb | 0:3957077e9775 | 414 | |
| nimbusgb | 0:3957077e9775 | 415 | void ADXL345_I2C::TwoByteWrite(char startAddress, char* buffer) { |
| nimbusgb | 0:3957077e9775 | 416 | |
| nimbusgb | 0:3957077e9775 | 417 | //nCS_ = 1; |
| nimbusgb | 0:3957077e9775 | 418 | //Send address to start reading from. |
| nimbusgb | 0:3957077e9775 | 419 | char tx[1]; |
| nimbusgb | 0:3957077e9775 | 420 | tx[0]=startAddress; |
| nimbusgb | 0:3957077e9775 | 421 | i2c_.write(ADXL345_I2C_WRITE,tx,1); |
| nimbusgb | 0:3957077e9775 | 422 | i2c_.write(ADXL345_I2C_WRITE,buffer,2); |
| nimbusgb | 0:3957077e9775 | 423 | |
| nimbusgb | 0:3957077e9775 | 424 | |
| nimbusgb | 0:3957077e9775 | 425 | //nCS_ = 0; |
| nimbusgb | 0:3957077e9775 | 426 | |
| nimbusgb | 0:3957077e9775 | 427 | } |