Brandon Yee / Mbed 2 deprecated Slingshot

Slingshot Controller

Dependencies:   ADXL345 DebounceIn USBDevice mbed

ADXL345/ADXL345.cpp@1:2721dc2acc2c, 2012-10-17 (annotated)

Committer:
Brandon
Date:
Wed Oct 17 16:33:04 2012 +0000
Revision:
1:2721dc2acc2c
Parent:
0:cf17ea89fd09 
Updated comments, added names, cleaned old code.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Brandon 0:cf17ea89fd09 1 /**
Brandon 0:cf17ea89fd09 2 * @author Aaron Berk
Brandon 0:cf17ea89fd09 3 *
Brandon 0:cf17ea89fd09 4 * @section LICENSE
Brandon 0:cf17ea89fd09 5 *
Brandon 0:cf17ea89fd09 6 * Copyright (c) 2010 ARM Limited
Brandon 0:cf17ea89fd09 7 *
Brandon 0:cf17ea89fd09 8 * Permission is hereby granted, free of charge, to any person obtaining a copy
Brandon 0:cf17ea89fd09 9 * of this software and associated documentation files (the "Software"), to deal
Brandon 0:cf17ea89fd09 10 * in the Software without restriction, including without limitation the rights
Brandon 0:cf17ea89fd09 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
Brandon 0:cf17ea89fd09 12 * copies of the Software, and to permit persons to whom the Software is
Brandon 0:cf17ea89fd09 13 * furnished to do so, subject to the following conditions:
Brandon 0:cf17ea89fd09 14 *
Brandon 0:cf17ea89fd09 15 * The above copyright notice and this permission notice shall be included in
Brandon 0:cf17ea89fd09 16 * all copies or substantial portions of the Software.
Brandon 0:cf17ea89fd09 17 *
Brandon 0:cf17ea89fd09 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
Brandon 0:cf17ea89fd09 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
Brandon 0:cf17ea89fd09 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
Brandon 0:cf17ea89fd09 21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
Brandon 0:cf17ea89fd09 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Brandon 0:cf17ea89fd09 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
Brandon 0:cf17ea89fd09 24 * THE SOFTWARE.
Brandon 0:cf17ea89fd09 25 *
Brandon 0:cf17ea89fd09 26 * @section DESCRIPTION
Brandon 0:cf17ea89fd09 27 *
Brandon 0:cf17ea89fd09 28 * ADXL345, triple axis, digital interface, accelerometer.
Brandon 0:cf17ea89fd09 29 *
Brandon 0:cf17ea89fd09 30 * Datasheet:
Brandon 0:cf17ea89fd09 31 *
Brandon 0:cf17ea89fd09 32 * http://www.analog.com/static/imported-files/data_sheets/ADXL345.pdf
Brandon 0:cf17ea89fd09 33 */
Brandon 0:cf17ea89fd09 34
Brandon 0:cf17ea89fd09 35 /**
Brandon 0:cf17ea89fd09 36 * Includes
Brandon 0:cf17ea89fd09 37 */
Brandon 0:cf17ea89fd09 38 #include "ADXL345.h"
Brandon 0:cf17ea89fd09 39
Brandon 0:cf17ea89fd09 40 ADXL345::ADXL345(PinName mosi,
Brandon 0:cf17ea89fd09 41 PinName miso,
Brandon 0:cf17ea89fd09 42 PinName sck,
Brandon 0:cf17ea89fd09 43 PinName cs) : spi_(mosi, miso, sck), nCS_(cs) {
Brandon 0:cf17ea89fd09 44
Brandon 0:cf17ea89fd09 45 //2MHz, allowing us to use the fastest data rates.
Brandon 0:cf17ea89fd09 46 spi_.frequency(2000000);
Brandon 0:cf17ea89fd09 47 spi_.format(8,3);
Brandon 0:cf17ea89fd09 48
Brandon 0:cf17ea89fd09 49 nCS_ = 1;
Brandon 0:cf17ea89fd09 50
Brandon 0:cf17ea89fd09 51 wait_us(500);
Brandon 0:cf17ea89fd09 52
Brandon 0:cf17ea89fd09 53 }
Brandon 0:cf17ea89fd09 54
Brandon 0:cf17ea89fd09 55 int ADXL345::getDevId(void) {
Brandon 0:cf17ea89fd09 56
Brandon 0:cf17ea89fd09 57 return oneByteRead(ADXL345_DEVID_REG);
Brandon 0:cf17ea89fd09 58
Brandon 0:cf17ea89fd09 59 }
Brandon 0:cf17ea89fd09 60
Brandon 0:cf17ea89fd09 61 int ADXL345::getTapThreshold(void) {
Brandon 0:cf17ea89fd09 62
Brandon 0:cf17ea89fd09 63 return oneByteRead(ADXL345_THRESH_TAP_REG);
Brandon 0:cf17ea89fd09 64
Brandon 0:cf17ea89fd09 65 }
Brandon 0:cf17ea89fd09 66
Brandon 0:cf17ea89fd09 67 void ADXL345::setTapThreshold(int threshold) {
Brandon 0:cf17ea89fd09 68
Brandon 0:cf17ea89fd09 69 oneByteWrite(ADXL345_THRESH_TAP_REG, threshold);
Brandon 0:cf17ea89fd09 70
Brandon 0:cf17ea89fd09 71 }
Brandon 0:cf17ea89fd09 72
Brandon 0:cf17ea89fd09 73 int ADXL345::getOffset(int axis) {
Brandon 0:cf17ea89fd09 74
Brandon 0:cf17ea89fd09 75 int address = 0;
Brandon 0:cf17ea89fd09 76
Brandon 0:cf17ea89fd09 77 if (axis == ADXL345_X) {
Brandon 0:cf17ea89fd09 78 address = ADXL345_OFSX_REG;
Brandon 0:cf17ea89fd09 79 } else if (axis == ADXL345_Y) {
Brandon 0:cf17ea89fd09 80 address = ADXL345_OFSY_REG;
Brandon 0:cf17ea89fd09 81 } else if (axis == ADXL345_Z) {
Brandon 0:cf17ea89fd09 82 address = ADXL345_OFSZ_REG;
Brandon 0:cf17ea89fd09 83 }
Brandon 0:cf17ea89fd09 84
Brandon 0:cf17ea89fd09 85 return oneByteRead(address);
Brandon 0:cf17ea89fd09 86
Brandon 0:cf17ea89fd09 87 }
Brandon 0:cf17ea89fd09 88
Brandon 0:cf17ea89fd09 89 void ADXL345::setOffset(int axis, char offset) {
Brandon 0:cf17ea89fd09 90
Brandon 0:cf17ea89fd09 91 int address = 0;
Brandon 0:cf17ea89fd09 92
Brandon 0:cf17ea89fd09 93 if (axis == ADXL345_X) {
Brandon 0:cf17ea89fd09 94 address = ADXL345_OFSX_REG;
Brandon 0:cf17ea89fd09 95 } else if (axis == ADXL345_Y) {
Brandon 0:cf17ea89fd09 96 address = ADXL345_OFSY_REG;
Brandon 0:cf17ea89fd09 97 } else if (axis == ADXL345_Z) {
Brandon 0:cf17ea89fd09 98 address = ADXL345_OFSZ_REG;
Brandon 0:cf17ea89fd09 99 }
Brandon 0:cf17ea89fd09 100
Brandon 0:cf17ea89fd09 101 return oneByteWrite(address, offset);
Brandon 0:cf17ea89fd09 102
Brandon 0:cf17ea89fd09 103 }
Brandon 0:cf17ea89fd09 104
Brandon 0:cf17ea89fd09 105 int ADXL345::getTapDuration(void) {
Brandon 0:cf17ea89fd09 106
Brandon 0:cf17ea89fd09 107 return oneByteRead(ADXL345_DUR_REG)*625;
Brandon 0:cf17ea89fd09 108
Brandon 0:cf17ea89fd09 109 }
Brandon 0:cf17ea89fd09 110
Brandon 0:cf17ea89fd09 111 void ADXL345::setTapDuration(int duration_us) {
Brandon 0:cf17ea89fd09 112
Brandon 0:cf17ea89fd09 113 int tapDuration = duration_us / 625;
Brandon 0:cf17ea89fd09 114
Brandon 0:cf17ea89fd09 115 oneByteWrite(ADXL345_DUR_REG, tapDuration);
Brandon 0:cf17ea89fd09 116
Brandon 0:cf17ea89fd09 117 }
Brandon 0:cf17ea89fd09 118
Brandon 0:cf17ea89fd09 119 float ADXL345::getTapLatency(void) {
Brandon 0:cf17ea89fd09 120
Brandon 0:cf17ea89fd09 121 return oneByteRead(ADXL345_LATENT_REG)*1.25;
Brandon 0:cf17ea89fd09 122
Brandon 0:cf17ea89fd09 123 }
Brandon 0:cf17ea89fd09 124
Brandon 0:cf17ea89fd09 125 void ADXL345::setTapLatency(int latency_ms) {
Brandon 0:cf17ea89fd09 126
Brandon 0:cf17ea89fd09 127 int tapLatency = latency_ms / 1.25;
Brandon 0:cf17ea89fd09 128
Brandon 0:cf17ea89fd09 129 oneByteWrite(ADXL345_LATENT_REG, tapLatency);
Brandon 0:cf17ea89fd09 130
Brandon 0:cf17ea89fd09 131 }
Brandon 0:cf17ea89fd09 132
Brandon 0:cf17ea89fd09 133 float ADXL345::getWindowTime(void) {
Brandon 0:cf17ea89fd09 134
Brandon 0:cf17ea89fd09 135 return oneByteRead(ADXL345_WINDOW_REG)*1.25;
Brandon 0:cf17ea89fd09 136
Brandon 0:cf17ea89fd09 137 }
Brandon 0:cf17ea89fd09 138
Brandon 0:cf17ea89fd09 139 void ADXL345::setWindowTime(int window_ms) {
Brandon 0:cf17ea89fd09 140
Brandon 0:cf17ea89fd09 141 int windowTime = window_ms / 1.25;
Brandon 0:cf17ea89fd09 142
Brandon 0:cf17ea89fd09 143 oneByteWrite(ADXL345_WINDOW_REG, windowTime);
Brandon 0:cf17ea89fd09 144
Brandon 0:cf17ea89fd09 145 }
Brandon 0:cf17ea89fd09 146
Brandon 0:cf17ea89fd09 147 int ADXL345::getActivityThreshold(void) {
Brandon 0:cf17ea89fd09 148
Brandon 0:cf17ea89fd09 149 return oneByteRead(ADXL345_THRESH_ACT_REG);
Brandon 0:cf17ea89fd09 150
Brandon 0:cf17ea89fd09 151 }
Brandon 0:cf17ea89fd09 152
Brandon 0:cf17ea89fd09 153 void ADXL345::setActivityThreshold(int threshold) {
Brandon 0:cf17ea89fd09 154
Brandon 0:cf17ea89fd09 155 oneByteWrite(ADXL345_THRESH_ACT_REG, threshold);
Brandon 0:cf17ea89fd09 156
Brandon 0:cf17ea89fd09 157 }
Brandon 0:cf17ea89fd09 158
Brandon 0:cf17ea89fd09 159 int ADXL345::getInactivityThreshold(void) {
Brandon 0:cf17ea89fd09 160
Brandon 0:cf17ea89fd09 161 return oneByteRead(ADXL345_THRESH_INACT_REG);
Brandon 0:cf17ea89fd09 162
Brandon 0:cf17ea89fd09 163 }
Brandon 0:cf17ea89fd09 164
Brandon 0:cf17ea89fd09 165 void ADXL345::setInactivityThreshold(int threshold) {
Brandon 0:cf17ea89fd09 166
Brandon 0:cf17ea89fd09 167 return oneByteWrite(ADXL345_THRESH_INACT_REG, threshold);
Brandon 0:cf17ea89fd09 168
Brandon 0:cf17ea89fd09 169 }
Brandon 0:cf17ea89fd09 170
Brandon 0:cf17ea89fd09 171 int ADXL345::getTimeInactivity(void) {
Brandon 0:cf17ea89fd09 172
Brandon 0:cf17ea89fd09 173 return oneByteRead(ADXL345_TIME_INACT_REG);
Brandon 0:cf17ea89fd09 174
Brandon 0:cf17ea89fd09 175 }
Brandon 0:cf17ea89fd09 176
Brandon 0:cf17ea89fd09 177 void ADXL345::setTimeInactivity(int timeInactivity) {
Brandon 0:cf17ea89fd09 178
Brandon 0:cf17ea89fd09 179 oneByteWrite(ADXL345_TIME_INACT_REG, timeInactivity);
Brandon 0:cf17ea89fd09 180
Brandon 0:cf17ea89fd09 181 }
Brandon 0:cf17ea89fd09 182
Brandon 0:cf17ea89fd09 183 int ADXL345::getActivityInactivityControl(void) {
Brandon 0:cf17ea89fd09 184
Brandon 0:cf17ea89fd09 185 return oneByteRead(ADXL345_ACT_INACT_CTL_REG);
Brandon 0:cf17ea89fd09 186
Brandon 0:cf17ea89fd09 187 }
Brandon 0:cf17ea89fd09 188
Brandon 0:cf17ea89fd09 189 void ADXL345::setActivityInactivityControl(int settings) {
Brandon 0:cf17ea89fd09 190
Brandon 0:cf17ea89fd09 191 oneByteWrite(ADXL345_ACT_INACT_CTL_REG, settings);
Brandon 0:cf17ea89fd09 192
Brandon 0:cf17ea89fd09 193 }
Brandon 0:cf17ea89fd09 194
Brandon 0:cf17ea89fd09 195 int ADXL345::getFreefallThreshold(void) {
Brandon 0:cf17ea89fd09 196
Brandon 0:cf17ea89fd09 197 return oneByteRead(ADXL345_THRESH_FF_REG);
Brandon 0:cf17ea89fd09 198
Brandon 0:cf17ea89fd09 199 }
Brandon 0:cf17ea89fd09 200
Brandon 0:cf17ea89fd09 201 void ADXL345::setFreefallThreshold(int threshold) {
Brandon 0:cf17ea89fd09 202
Brandon 0:cf17ea89fd09 203 oneByteWrite(ADXL345_THRESH_FF_REG, threshold);
Brandon 0:cf17ea89fd09 204
Brandon 0:cf17ea89fd09 205 }
Brandon 0:cf17ea89fd09 206
Brandon 0:cf17ea89fd09 207 int ADXL345::getFreefallTime(void) {
Brandon 0:cf17ea89fd09 208
Brandon 0:cf17ea89fd09 209 return oneByteRead(ADXL345_TIME_FF_REG)*5;
Brandon 0:cf17ea89fd09 210
Brandon 0:cf17ea89fd09 211 }
Brandon 0:cf17ea89fd09 212
Brandon 0:cf17ea89fd09 213 void ADXL345::setFreefallTime(int freefallTime_ms) {
Brandon 0:cf17ea89fd09 214
Brandon 0:cf17ea89fd09 215 int freefallTime = freefallTime_ms / 5;
Brandon 0:cf17ea89fd09 216
Brandon 0:cf17ea89fd09 217 oneByteWrite(ADXL345_TIME_FF_REG, freefallTime);
Brandon 0:cf17ea89fd09 218
Brandon 0:cf17ea89fd09 219 }
Brandon 0:cf17ea89fd09 220
Brandon 0:cf17ea89fd09 221 int ADXL345::getTapAxisControl(void) {
Brandon 0:cf17ea89fd09 222
Brandon 0:cf17ea89fd09 223 return oneByteRead(ADXL345_TAP_AXES_REG);
Brandon 0:cf17ea89fd09 224
Brandon 0:cf17ea89fd09 225 }
Brandon 0:cf17ea89fd09 226
Brandon 0:cf17ea89fd09 227 void ADXL345::setTapAxisControl(int settings) {
Brandon 0:cf17ea89fd09 228
Brandon 0:cf17ea89fd09 229 oneByteWrite(ADXL345_TAP_AXES_REG, settings);
Brandon 0:cf17ea89fd09 230
Brandon 0:cf17ea89fd09 231 }
Brandon 0:cf17ea89fd09 232
Brandon 0:cf17ea89fd09 233 int ADXL345::getTapSource(void) {
Brandon 0:cf17ea89fd09 234
Brandon 0:cf17ea89fd09 235 return oneByteRead(ADXL345_ACT_TAP_STATUS_REG);
Brandon 0:cf17ea89fd09 236
Brandon 0:cf17ea89fd09 237 }
Brandon 0:cf17ea89fd09 238
Brandon 0:cf17ea89fd09 239 void ADXL345::setPowerMode(char mode) {
Brandon 0:cf17ea89fd09 240
Brandon 0:cf17ea89fd09 241 //Get the current register contents, so we don't clobber the rate value.
Brandon 0:cf17ea89fd09 242 char registerContents = oneByteRead(ADXL345_BW_RATE_REG);
Brandon 0:cf17ea89fd09 243
Brandon 0:cf17ea89fd09 244 registerContents = (mode << 4) | registerContents;
Brandon 0:cf17ea89fd09 245
Brandon 0:cf17ea89fd09 246 oneByteWrite(ADXL345_BW_RATE_REG, registerContents);
Brandon 0:cf17ea89fd09 247
Brandon 0:cf17ea89fd09 248 }
Brandon 0:cf17ea89fd09 249
Brandon 0:cf17ea89fd09 250 int ADXL345::getPowerControl(void) {
Brandon 0:cf17ea89fd09 251
Brandon 0:cf17ea89fd09 252 return oneByteRead(ADXL345_POWER_CTL_REG);
Brandon 0:cf17ea89fd09 253
Brandon 0:cf17ea89fd09 254 }
Brandon 0:cf17ea89fd09 255
Brandon 0:cf17ea89fd09 256 void ADXL345::setPowerControl(int settings) {
Brandon 0:cf17ea89fd09 257
Brandon 0:cf17ea89fd09 258 oneByteWrite(ADXL345_POWER_CTL_REG, settings);
Brandon 0:cf17ea89fd09 259
Brandon 0:cf17ea89fd09 260 }
Brandon 0:cf17ea89fd09 261
Brandon 0:cf17ea89fd09 262 int ADXL345::getInterruptEnableControl(void) {
Brandon 0:cf17ea89fd09 263
Brandon 0:cf17ea89fd09 264 return oneByteRead(ADXL345_INT_ENABLE_REG);
Brandon 0:cf17ea89fd09 265
Brandon 0:cf17ea89fd09 266 }
Brandon 0:cf17ea89fd09 267
Brandon 0:cf17ea89fd09 268 void ADXL345::setInterruptEnableControl(int settings) {
Brandon 0:cf17ea89fd09 269
Brandon 0:cf17ea89fd09 270 oneByteWrite(ADXL345_INT_ENABLE_REG, settings);
Brandon 0:cf17ea89fd09 271
Brandon 0:cf17ea89fd09 272 }
Brandon 0:cf17ea89fd09 273
Brandon 0:cf17ea89fd09 274 int ADXL345::getInterruptMappingControl(void) {
Brandon 0:cf17ea89fd09 275
Brandon 0:cf17ea89fd09 276 return oneByteRead(ADXL345_INT_MAP_REG);
Brandon 0:cf17ea89fd09 277
Brandon 0:cf17ea89fd09 278 }
Brandon 0:cf17ea89fd09 279
Brandon 0:cf17ea89fd09 280 void ADXL345::setInterruptMappingControl(int settings) {
Brandon 0:cf17ea89fd09 281
Brandon 0:cf17ea89fd09 282 oneByteWrite(ADXL345_INT_MAP_REG, settings);
Brandon 0:cf17ea89fd09 283
Brandon 0:cf17ea89fd09 284 }
Brandon 0:cf17ea89fd09 285
Brandon 0:cf17ea89fd09 286 int ADXL345::getInterruptSource(void){
Brandon 0:cf17ea89fd09 287
Brandon 0:cf17ea89fd09 288 return oneByteRead(ADXL345_INT_SOURCE_REG);
Brandon 0:cf17ea89fd09 289
Brandon 0:cf17ea89fd09 290 }
Brandon 0:cf17ea89fd09 291
Brandon 0:cf17ea89fd09 292 int ADXL345::getDataFormatControl(void){
Brandon 0:cf17ea89fd09 293
Brandon 0:cf17ea89fd09 294 return oneByteRead(ADXL345_DATA_FORMAT_REG);
Brandon 0:cf17ea89fd09 295
Brandon 0:cf17ea89fd09 296 }
Brandon 0:cf17ea89fd09 297
Brandon 0:cf17ea89fd09 298 void ADXL345::setDataFormatControl(int settings){
Brandon 0:cf17ea89fd09 299
Brandon 0:cf17ea89fd09 300 oneByteWrite(ADXL345_DATA_FORMAT_REG, settings);
Brandon 0:cf17ea89fd09 301
Brandon 0:cf17ea89fd09 302 }
Brandon 0:cf17ea89fd09 303
Brandon 0:cf17ea89fd09 304 void ADXL345::setDataRate(int rate) {
Brandon 0:cf17ea89fd09 305
Brandon 0:cf17ea89fd09 306 //Get the current register contents, so we don't clobber the power bit.
Brandon 0:cf17ea89fd09 307 char registerContents = oneByteRead(ADXL345_BW_RATE_REG);
Brandon 0:cf17ea89fd09 308
Brandon 0:cf17ea89fd09 309 registerContents &= 0x10;
Brandon 0:cf17ea89fd09 310 registerContents |= rate;
Brandon 0:cf17ea89fd09 311
Brandon 0:cf17ea89fd09 312 oneByteWrite(ADXL345_BW_RATE_REG, registerContents);
Brandon 0:cf17ea89fd09 313
Brandon 0:cf17ea89fd09 314 }
Brandon 0:cf17ea89fd09 315
Brandon 0:cf17ea89fd09 316 void ADXL345::getOutput(int* readings){
Brandon 0:cf17ea89fd09 317
Brandon 0:cf17ea89fd09 318 char buffer[6];
Brandon 0:cf17ea89fd09 319
Brandon 0:cf17ea89fd09 320 multiByteRead(ADXL345_DATAX0_REG, buffer, 6);
Brandon 0:cf17ea89fd09 321
Brandon 0:cf17ea89fd09 322 readings[0] = (int)buffer[1] << 8 | (int)buffer[0];
Brandon 0:cf17ea89fd09 323 readings[1] = (int)buffer[3] << 8 | (int)buffer[2];
Brandon 0:cf17ea89fd09 324 readings[2] = (int)buffer[5] << 8 | (int)buffer[4];
Brandon 0:cf17ea89fd09 325
Brandon 0:cf17ea89fd09 326 }
Brandon 0:cf17ea89fd09 327
Brandon 0:cf17ea89fd09 328 int ADXL345::getFifoControl(void){
Brandon 0:cf17ea89fd09 329
Brandon 0:cf17ea89fd09 330 return oneByteRead(ADXL345_FIFO_CTL);
Brandon 0:cf17ea89fd09 331
Brandon 0:cf17ea89fd09 332 }
Brandon 0:cf17ea89fd09 333
Brandon 0:cf17ea89fd09 334 void ADXL345::setFifoControl(int settings){
Brandon 0:cf17ea89fd09 335
Brandon 0:cf17ea89fd09 336 oneByteWrite(ADXL345_FIFO_STATUS, settings);
Brandon 0:cf17ea89fd09 337
Brandon 0:cf17ea89fd09 338 }
Brandon 0:cf17ea89fd09 339
Brandon 0:cf17ea89fd09 340 int ADXL345::getFifoStatus(void){
Brandon 0:cf17ea89fd09 341
Brandon 0:cf17ea89fd09 342 return oneByteRead(ADXL345_FIFO_STATUS);
Brandon 0:cf17ea89fd09 343
Brandon 0:cf17ea89fd09 344 }
Brandon 0:cf17ea89fd09 345
Brandon 0:cf17ea89fd09 346 int ADXL345::oneByteRead(int address) {
Brandon 0:cf17ea89fd09 347
Brandon 0:cf17ea89fd09 348 int tx = (ADXL345_SPI_READ | (address & 0x3F));
Brandon 0:cf17ea89fd09 349 int rx = 0;
Brandon 0:cf17ea89fd09 350
Brandon 0:cf17ea89fd09 351 nCS_ = 0;
Brandon 0:cf17ea89fd09 352 //Send address to read from.
Brandon 0:cf17ea89fd09 353 spi_.write(tx);
Brandon 0:cf17ea89fd09 354 //Read back contents of address.
Brandon 0:cf17ea89fd09 355 rx = spi_.write(0x00);
Brandon 0:cf17ea89fd09 356 nCS_ = 1;
Brandon 0:cf17ea89fd09 357
Brandon 0:cf17ea89fd09 358 return rx;
Brandon 0:cf17ea89fd09 359
Brandon 0:cf17ea89fd09 360 }
Brandon 0:cf17ea89fd09 361
Brandon 0:cf17ea89fd09 362 void ADXL345::oneByteWrite(int address, char data) {
Brandon 0:cf17ea89fd09 363
Brandon 0:cf17ea89fd09 364 int tx = (ADXL345_SPI_WRITE | (address & 0x3F));
Brandon 0:cf17ea89fd09 365
Brandon 0:cf17ea89fd09 366 nCS_ = 0;
Brandon 0:cf17ea89fd09 367 //Send address to write to.
Brandon 0:cf17ea89fd09 368 spi_.write(tx);
Brandon 0:cf17ea89fd09 369 //Send data to be written.
Brandon 0:cf17ea89fd09 370 spi_.write(data);
Brandon 0:cf17ea89fd09 371 nCS_ = 1;
Brandon 0:cf17ea89fd09 372
Brandon 0:cf17ea89fd09 373 }
Brandon 0:cf17ea89fd09 374
Brandon 0:cf17ea89fd09 375 void ADXL345::multiByteRead(int startAddress, char* buffer, int size) {
Brandon 0:cf17ea89fd09 376
Brandon 0:cf17ea89fd09 377 int tx = (ADXL345_SPI_READ | ADXL345_MULTI_BYTE | (startAddress & 0x3F));
Brandon 0:cf17ea89fd09 378
Brandon 0:cf17ea89fd09 379 nCS_ = 0;
Brandon 0:cf17ea89fd09 380 //Send address to start reading from.
Brandon 0:cf17ea89fd09 381 spi_.write(tx);
Brandon 0:cf17ea89fd09 382
Brandon 0:cf17ea89fd09 383 for (int i = 0; i < size; i++) {
Brandon 0:cf17ea89fd09 384 buffer[i] = spi_.write(0x00);
Brandon 0:cf17ea89fd09 385 }
Brandon 0:cf17ea89fd09 386
Brandon 0:cf17ea89fd09 387 nCS_ = 1;
Brandon 0:cf17ea89fd09 388
Brandon 0:cf17ea89fd09 389 }
Brandon 0:cf17ea89fd09 390
Brandon 0:cf17ea89fd09 391 void ADXL345::multiByteWrite(int startAddress, char* buffer, int size) {
Brandon 0:cf17ea89fd09 392
Brandon 0:cf17ea89fd09 393 int tx = (ADXL345_SPI_WRITE | ADXL345_MULTI_BYTE | (startAddress & 0x3F));
Brandon 0:cf17ea89fd09 394
Brandon 0:cf17ea89fd09 395 nCS_ = 0;
Brandon 0:cf17ea89fd09 396 //Send address to start reading from.
Brandon 0:cf17ea89fd09 397 spi_.write(tx);
Brandon 0:cf17ea89fd09 398
Brandon 0:cf17ea89fd09 399 for (int i = 0; i < size; i++) {
Brandon 0:cf17ea89fd09 400 buffer[i] = spi_.write(0x00);
Brandon 0:cf17ea89fd09 401 }
Brandon 0:cf17ea89fd09 402
Brandon 0:cf17ea89fd09 403 nCS_ = 1;
Brandon 0:cf17ea89fd09 404
Brandon 0:cf17ea89fd09 405 }