Jon Buckman / LDC1000

TI LDC1000 library.

ldc1000.cpp@0:b9daf55d7586, 2017-04-05 (annotated)

Committer:
jonebuckman
Date:
Wed Apr 05 20:34:42 2017 +0000
Revision:
0:b9daf55d7586
First release.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jonebuckman 0:b9daf55d7586 1 /**
jonebuckman 0:b9daf55d7586 2 * @file ldc1000.cpp
jonebuckman 0:b9daf55d7586 3 *
jonebuckman 0:b9daf55d7586 4 * @author Jon Buckman
jonebuckman 0:b9daf55d7586 5 *
jonebuckman 0:b9daf55d7586 6 * @section LICENSE
jonebuckman 0:b9daf55d7586 7 *
jonebuckman 0:b9daf55d7586 8 * Copyright (c) 2014 Jon Buckman
jonebuckman 0:b9daf55d7586 9 *
jonebuckman 0:b9daf55d7586 10 * This program is free software: you can redistribute it and/or modify
jonebuckman 0:b9daf55d7586 11 * it under the terms of the GNU General Public License as published by
jonebuckman 0:b9daf55d7586 12 * the Free Software Foundation, either version 3 of the License, or
jonebuckman 0:b9daf55d7586 13 * (at your option) any later version.
jonebuckman 0:b9daf55d7586 14 *
jonebuckman 0:b9daf55d7586 15 * This program is distributed in the hope that it will be useful,
jonebuckman 0:b9daf55d7586 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
jonebuckman 0:b9daf55d7586 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
jonebuckman 0:b9daf55d7586 18 * GNU General Public License for more details.
jonebuckman 0:b9daf55d7586 19 *
jonebuckman 0:b9daf55d7586 20 * You should have received a copy of the GNU General Public License
jonebuckman 0:b9daf55d7586 21 * along with this program. If not, see <http://www.gnu.org/licenses/>.
jonebuckman 0:b9daf55d7586 22 *
jonebuckman 0:b9daf55d7586 23 * The above copyright notice and this permission notice shall be included in
jonebuckman 0:b9daf55d7586 24 * all copies or substantial portions of the Software.
jonebuckman 0:b9daf55d7586 25 *
jonebuckman 0:b9daf55d7586 26 * @section DESCRIPTION
jonebuckman 0:b9daf55d7586 27 *
jonebuckman 0:b9daf55d7586 28 * LDC1000 Inductance to Digital Converter from Texas Instruments.
jonebuckman 0:b9daf55d7586 29 *
jonebuckman 0:b9daf55d7586 30 * Datasheet:
jonebuckman 0:b9daf55d7586 31 *
jonebuckman 0:b9daf55d7586 32 * http://www.ti.com/lit/ds/symlink/ldc1000.pdf
jonebuckman 0:b9daf55d7586 33 */
jonebuckman 0:b9daf55d7586 34
jonebuckman 0:b9daf55d7586 35 /**
jonebuckman 0:b9daf55d7586 36 * Includes
jonebuckman 0:b9daf55d7586 37 */
jonebuckman 0:b9daf55d7586 38 #include "ldc1000.h"
jonebuckman 0:b9daf55d7586 39
jonebuckman 0:b9daf55d7586 40 /**
jonebuckman 0:b9daf55d7586 41 * Defines
jonebuckman 0:b9daf55d7586 42 *
jonebuckman 0:b9daf55d7586 43 * (Note that all defines here start with an underscore, e.g. '_LDC1000_MODE_UNKNOWN',
jonebuckman 0:b9daf55d7586 44 * and are local to this library. The defines in the ldc1000.h file do not start
jonebuckman 0:b9daf55d7586 45 * with the underscore, and can be used by code to access this library.)
jonebuckman 0:b9daf55d7586 46 */
jonebuckman 0:b9daf55d7586 47
jonebuckman 0:b9daf55d7586 48 typedef enum {
jonebuckman 0:b9daf55d7586 49 _LDC1000_MODE_UNKNOWN,
jonebuckman 0:b9daf55d7586 50 _LDC1000_MODE_POWER_DOWN,
jonebuckman 0:b9daf55d7586 51 _LDC1000_MODE_STANDBY,
jonebuckman 0:b9daf55d7586 52 } LDC1000_Mode_Type;
jonebuckman 0:b9daf55d7586 53
jonebuckman 0:b9daf55d7586 54 /**
jonebuckman 0:b9daf55d7586 55 * Registers
jonebuckman 0:b9daf55d7586 56 */
jonebuckman 0:b9daf55d7586 57 #define _LDC1000_DEVICE_ID 0x00
jonebuckman 0:b9daf55d7586 58 #define _LDC1000_RP_MAX 0x01
jonebuckman 0:b9daf55d7586 59 #define _LDC1000_RP_MIN 0x02
jonebuckman 0:b9daf55d7586 60 #define _LDC1000_SENSOR_FREQ 0x03
jonebuckman 0:b9daf55d7586 61 #define _LDC1000_LDC_CONFIG 0x04
jonebuckman 0:b9daf55d7586 62 #define _LDC1000_CLK_CONFIG 0x05
jonebuckman 0:b9daf55d7586 63 #define _LDC1000_CMP_THLD_HI_LSB 0x06
jonebuckman 0:b9daf55d7586 64 #define _LDC1000_CMP_THLD_HI_MSB 0x07
jonebuckman 0:b9daf55d7586 65 #define _LDC1000_CMP_THLD_LO_LSB 0x08
jonebuckman 0:b9daf55d7586 66 #define _LDC1000_CMP_THLD_LO_MSB 0x09
jonebuckman 0:b9daf55d7586 67 #define _LDC1000_INTB_PIN_CONFIG 0x0A
jonebuckman 0:b9daf55d7586 68 #define _LDC1000_PWR_CONFIG 0x0B
jonebuckman 0:b9daf55d7586 69 #define _LDC1000_STATUS 0x20
jonebuckman 0:b9daf55d7586 70 #define _LDC1000_PRX_DATA_LSB 0x21
jonebuckman 0:b9daf55d7586 71 #define _LDC1000_PRX_DATA_MSB 0x22
jonebuckman 0:b9daf55d7586 72 #define _LDC1000_FREQ_CNT_DATA_LSB 0x23
jonebuckman 0:b9daf55d7586 73 #define _LDC1000_FREQ_CNT_DATA_MIDB 0x24
jonebuckman 0:b9daf55d7586 74 #define _LDC1000_FREQ_CNT_DATA_MSB 0x25
jonebuckman 0:b9daf55d7586 75
jonebuckman 0:b9daf55d7586 76 /**
jonebuckman 0:b9daf55d7586 77 * LDC Configuration Masks
jonebuckman 0:b9daf55d7586 78 */
jonebuckman 0:b9daf55d7586 79 #define _LDC1000_LDC_CONFIG_MASK_AMP (0x03<<3)
jonebuckman 0:b9daf55d7586 80 #define _LDC1000_LDC_CONFIG_MASK_RESP (0x07<<0)
jonebuckman 0:b9daf55d7586 81 #define _LDC1000_CLK_CONFIG_MASK_SEL (0x01<<1)
jonebuckman 0:b9daf55d7586 82 #define _LDC1000_CLK_CONFIG_MASK_PD (0x01<<0)
jonebuckman 0:b9daf55d7586 83 #define _LDC1000_INTB_PIN_CONFIG_MASK_MODE (0x07<<0)
jonebuckman 0:b9daf55d7586 84 #define _LDC1000_STATUS_MASK (0x08<<4)
jonebuckman 0:b9daf55d7586 85 #define _LDC1000_PWR_CONFIG_MASK (0x01<<0)
jonebuckman 0:b9daf55d7586 86
jonebuckman 0:b9daf55d7586 87 /**
jonebuckman 0:b9daf55d7586 88 * LDC SPI
jonebuckman 0:b9daf55d7586 89 */
jonebuckman 0:b9daf55d7586 90 #define _LDC1000_SPI_CMD_RD_REG 0x80
jonebuckman 0:b9daf55d7586 91 #define _LDC1000_SPI_CMD_WR_REG 0x00
jonebuckman 0:b9daf55d7586 92 #define _LDC1000_REG_ADDRESS_MASK 0x7f
jonebuckman 0:b9daf55d7586 93 #define _LDC1000_SPI_CMD_NOP 0xff
jonebuckman 0:b9daf55d7586 94 #define _LDC1000_SPI_MAX_DATA_RATE 10000000
jonebuckman 0:b9daf55d7586 95
jonebuckman 0:b9daf55d7586 96 /**
jonebuckman 0:b9daf55d7586 97 * LDC Timing
jonebuckman 0:b9daf55d7586 98 */
jonebuckman 0:b9daf55d7586 99 #define _LDC1000_TIMING_Tundef2pd_us 100000 // 100mS
jonebuckman 0:b9daf55d7586 100 #define _LDC1000_TIMING_Tstby2a_us 130 // 130uS
jonebuckman 0:b9daf55d7586 101 #define _LDC1000_TIMING_Thce_us 10 // 10uS
jonebuckman 0:b9daf55d7586 102 #define _LDC1000_TIMING_Tpd2stby_us 4500 // 4.5mS worst case
jonebuckman 0:b9daf55d7586 103 #define _LDC1000_TIMING_Tpece2csn_us 4 // 4uS
jonebuckman 0:b9daf55d7586 104
jonebuckman 0:b9daf55d7586 105 /**
jonebuckman 0:b9daf55d7586 106 * Methods
jonebuckman 0:b9daf55d7586 107 */
jonebuckman 0:b9daf55d7586 108 LDC1000::LDC1000(PinName mosi,
jonebuckman 0:b9daf55d7586 109 PinName miso,
jonebuckman 0:b9daf55d7586 110 PinName sck,
jonebuckman 0:b9daf55d7586 111 PinName csn,
jonebuckman 0:b9daf55d7586 112 PinName irq) : spi_(mosi, miso, sck), nCS_(csn), nIRQ_(irq) {
jonebuckman 0:b9daf55d7586 113
jonebuckman 0:b9daf55d7586 114 mode = _LDC1000_MODE_UNKNOWN;
jonebuckman 0:b9daf55d7586 115
jonebuckman 0:b9daf55d7586 116 nCS_ = 1;
jonebuckman 0:b9daf55d7586 117
jonebuckman 0:b9daf55d7586 118 spi_.frequency(_LDC1000_SPI_MAX_DATA_RATE/5); // 2Mbit, 1/5th the maximum transfer rate for the SPI bus
jonebuckman 0:b9daf55d7586 119 spi_.format(8,0); // 8-bit, ClockPhase = 0, ClockPolarity = 0
jonebuckman 0:b9daf55d7586 120
jonebuckman 0:b9daf55d7586 121 wait_us(_LDC1000_TIMING_Tundef2pd_us); // Wait for Power-on reset
jonebuckman 0:b9daf55d7586 122
jonebuckman 0:b9daf55d7586 123 setRegister(_LDC1000_PWR_CONFIG, 0); // Power Down
jonebuckman 0:b9daf55d7586 124
jonebuckman 0:b9daf55d7586 125 //
jonebuckman 0:b9daf55d7586 126 // Setup default configuration
jonebuckman 0:b9daf55d7586 127 //
jonebuckman 0:b9daf55d7586 128 setSensorFrequency(179);
jonebuckman 0:b9daf55d7586 129
jonebuckman 0:b9daf55d7586 130 mode = _LDC1000_MODE_POWER_DOWN;
jonebuckman 0:b9daf55d7586 131
jonebuckman 0:b9daf55d7586 132 }
jonebuckman 0:b9daf55d7586 133
jonebuckman 0:b9daf55d7586 134
jonebuckman 0:b9daf55d7586 135 int LDC1000::getDeviceID(void) {
jonebuckman 0:b9daf55d7586 136
jonebuckman 0:b9daf55d7586 137 int value = getRegister(_LDC1000_DEVICE_ID);
jonebuckman 0:b9daf55d7586 138
jonebuckman 0:b9daf55d7586 139 return (value);
jonebuckman 0:b9daf55d7586 140
jonebuckman 0:b9daf55d7586 141 }
jonebuckman 0:b9daf55d7586 142
jonebuckman 0:b9daf55d7586 143 void LDC1000::setSensorFrequency(int frequency) {
jonebuckman 0:b9daf55d7586 144
jonebuckman 0:b9daf55d7586 145 if ( ( frequency < LDC1000_MIN_SENSOR_FREQUENCY ) || ( frequency > LDC1000_MAX_SENSOR_FREQUENCY ) ) {
jonebuckman 0:b9daf55d7586 146
jonebuckman 0:b9daf55d7586 147 error( "LDC1000: Invalid Sensor Frequency setting %d\r\n", frequency );
jonebuckman 0:b9daf55d7586 148 return;
jonebuckman 0:b9daf55d7586 149
jonebuckman 0:b9daf55d7586 150 }
jonebuckman 0:b9daf55d7586 151
jonebuckman 0:b9daf55d7586 152 setRegister(_LDC1000_SENSOR_FREQ, frequency);
jonebuckman 0:b9daf55d7586 153
jonebuckman 0:b9daf55d7586 154 }
jonebuckman 0:b9daf55d7586 155
jonebuckman 0:b9daf55d7586 156
jonebuckman 0:b9daf55d7586 157 int LDC1000::getSensorFrequency(void) {
jonebuckman 0:b9daf55d7586 158
jonebuckman 0:b9daf55d7586 159 int value = getRegister(_LDC1000_SENSOR_FREQ);
jonebuckman 0:b9daf55d7586 160
jonebuckman 0:b9daf55d7586 161 return (value);
jonebuckman 0:b9daf55d7586 162
jonebuckman 0:b9daf55d7586 163 }
jonebuckman 0:b9daf55d7586 164
jonebuckman 0:b9daf55d7586 165
jonebuckman 0:b9daf55d7586 166 void LDC1000::setRpMaximum(int rp) {
jonebuckman 0:b9daf55d7586 167
jonebuckman 0:b9daf55d7586 168 if ( ( rp < 0 ) || ( rp > 0x1f ) ) {
jonebuckman 0:b9daf55d7586 169
jonebuckman 0:b9daf55d7586 170 error( "LDC1000: Invalid Rp maximum setting %d\r\n", rp );
jonebuckman 0:b9daf55d7586 171 return;
jonebuckman 0:b9daf55d7586 172
jonebuckman 0:b9daf55d7586 173 }
jonebuckman 0:b9daf55d7586 174
jonebuckman 0:b9daf55d7586 175 setRegister(_LDC1000_RP_MAX, rp);
jonebuckman 0:b9daf55d7586 176
jonebuckman 0:b9daf55d7586 177 }
jonebuckman 0:b9daf55d7586 178
jonebuckman 0:b9daf55d7586 179
jonebuckman 0:b9daf55d7586 180 int LDC1000::getRpMaximum(void) {
jonebuckman 0:b9daf55d7586 181
jonebuckman 0:b9daf55d7586 182 int value = getRegister(_LDC1000_RP_MAX);
jonebuckman 0:b9daf55d7586 183
jonebuckman 0:b9daf55d7586 184 return (value);
jonebuckman 0:b9daf55d7586 185
jonebuckman 0:b9daf55d7586 186 }
jonebuckman 0:b9daf55d7586 187
jonebuckman 0:b9daf55d7586 188
jonebuckman 0:b9daf55d7586 189 void LDC1000::setRpMinimum(int rp) {
jonebuckman 0:b9daf55d7586 190
jonebuckman 0:b9daf55d7586 191 if ( ( rp < 0x20 ) || ( rp > 0x3f ) ) {
jonebuckman 0:b9daf55d7586 192
jonebuckman 0:b9daf55d7586 193 error( "LDC1000: Invalid Rp minimum setting %d\r\n", rp );
jonebuckman 0:b9daf55d7586 194 return;
jonebuckman 0:b9daf55d7586 195
jonebuckman 0:b9daf55d7586 196 }
jonebuckman 0:b9daf55d7586 197
jonebuckman 0:b9daf55d7586 198 setRegister(_LDC1000_RP_MIN, rp);
jonebuckman 0:b9daf55d7586 199
jonebuckman 0:b9daf55d7586 200 }
jonebuckman 0:b9daf55d7586 201
jonebuckman 0:b9daf55d7586 202
jonebuckman 0:b9daf55d7586 203 int LDC1000::getRpMinimum(void) {
jonebuckman 0:b9daf55d7586 204
jonebuckman 0:b9daf55d7586 205 int value = getRegister(_LDC1000_RP_MIN);
jonebuckman 0:b9daf55d7586 206
jonebuckman 0:b9daf55d7586 207 return (value);
jonebuckman 0:b9daf55d7586 208
jonebuckman 0:b9daf55d7586 209 }
jonebuckman 0:b9daf55d7586 210
jonebuckman 0:b9daf55d7586 211
jonebuckman 0:b9daf55d7586 212 void LDC1000::setOscAmplitude(int oscamp) {
jonebuckman 0:b9daf55d7586 213
jonebuckman 0:b9daf55d7586 214 if ( ( oscamp < 0 ) || ( oscamp > 2 ) ) {
jonebuckman 0:b9daf55d7586 215
jonebuckman 0:b9daf55d7586 216 error( "LDC1000: Invalid oscillation amplitude setting %d\r\n", oscamp );
jonebuckman 0:b9daf55d7586 217 return;
jonebuckman 0:b9daf55d7586 218
jonebuckman 0:b9daf55d7586 219 }
jonebuckman 0:b9daf55d7586 220
jonebuckman 0:b9daf55d7586 221 int value = getRegister(_LDC1000_LDC_CONFIG) & ~_LDC1000_LDC_CONFIG_MASK_AMP;
jonebuckman 0:b9daf55d7586 222
jonebuckman 0:b9daf55d7586 223 value |= oscamp;
jonebuckman 0:b9daf55d7586 224
jonebuckman 0:b9daf55d7586 225 setRegister(_LDC1000_LDC_CONFIG, value);
jonebuckman 0:b9daf55d7586 226
jonebuckman 0:b9daf55d7586 227 }
jonebuckman 0:b9daf55d7586 228
jonebuckman 0:b9daf55d7586 229
jonebuckman 0:b9daf55d7586 230 int LDC1000::getOscAmplitude(void) {
jonebuckman 0:b9daf55d7586 231
jonebuckman 0:b9daf55d7586 232 int value = getRegister(_LDC1000_LDC_CONFIG) & ~_LDC1000_LDC_CONFIG_MASK_AMP;
jonebuckman 0:b9daf55d7586 233
jonebuckman 0:b9daf55d7586 234 return (value);
jonebuckman 0:b9daf55d7586 235
jonebuckman 0:b9daf55d7586 236 }
jonebuckman 0:b9daf55d7586 237
jonebuckman 0:b9daf55d7586 238
jonebuckman 0:b9daf55d7586 239 void LDC1000::setResponseTime(int resp) {
jonebuckman 0:b9daf55d7586 240
jonebuckman 0:b9daf55d7586 241 if ( ( resp < 2 ) || ( resp > 7 ) ) {
jonebuckman 0:b9daf55d7586 242
jonebuckman 0:b9daf55d7586 243 error( "LDC1000: Invalid response time setting %d\r\n", resp );
jonebuckman 0:b9daf55d7586 244 return;
jonebuckman 0:b9daf55d7586 245
jonebuckman 0:b9daf55d7586 246 }
jonebuckman 0:b9daf55d7586 247
jonebuckman 0:b9daf55d7586 248 int value = getRegister(_LDC1000_LDC_CONFIG) & ~_LDC1000_LDC_CONFIG_MASK_RESP;
jonebuckman 0:b9daf55d7586 249
jonebuckman 0:b9daf55d7586 250 value |= resp;
jonebuckman 0:b9daf55d7586 251
jonebuckman 0:b9daf55d7586 252 setRegister(_LDC1000_LDC_CONFIG, value);
jonebuckman 0:b9daf55d7586 253
jonebuckman 0:b9daf55d7586 254 }
jonebuckman 0:b9daf55d7586 255
jonebuckman 0:b9daf55d7586 256
jonebuckman 0:b9daf55d7586 257 int LDC1000::getResponseTime(void) {
jonebuckman 0:b9daf55d7586 258
jonebuckman 0:b9daf55d7586 259 int value = getRegister(_LDC1000_LDC_CONFIG) & ~_LDC1000_LDC_CONFIG_MASK_RESP;
jonebuckman 0:b9daf55d7586 260
jonebuckman 0:b9daf55d7586 261 return (value);
jonebuckman 0:b9daf55d7586 262
jonebuckman 0:b9daf55d7586 263 }
jonebuckman 0:b9daf55d7586 264
jonebuckman 0:b9daf55d7586 265
jonebuckman 0:b9daf55d7586 266 void LDC1000::setClockSelect(int sel) {
jonebuckman 0:b9daf55d7586 267
jonebuckman 0:b9daf55d7586 268 int value = getRegister(_LDC1000_CLK_CONFIG) & ~_LDC1000_CLK_CONFIG_MASK_SEL;
jonebuckman 0:b9daf55d7586 269
jonebuckman 0:b9daf55d7586 270 value |= sel;
jonebuckman 0:b9daf55d7586 271
jonebuckman 0:b9daf55d7586 272 setRegister(_LDC1000_CLK_CONFIG, value);
jonebuckman 0:b9daf55d7586 273
jonebuckman 0:b9daf55d7586 274 }
jonebuckman 0:b9daf55d7586 275
jonebuckman 0:b9daf55d7586 276
jonebuckman 0:b9daf55d7586 277 int LDC1000::getClockSelect(void) {
jonebuckman 0:b9daf55d7586 278
jonebuckman 0:b9daf55d7586 279 int value = getRegister(_LDC1000_CLK_CONFIG) & ~_LDC1000_CLK_CONFIG_MASK_SEL;
jonebuckman 0:b9daf55d7586 280
jonebuckman 0:b9daf55d7586 281 return (value);
jonebuckman 0:b9daf55d7586 282
jonebuckman 0:b9daf55d7586 283 }
jonebuckman 0:b9daf55d7586 284
jonebuckman 0:b9daf55d7586 285
jonebuckman 0:b9daf55d7586 286 void LDC1000::setClockTimeBase(int pd) {
jonebuckman 0:b9daf55d7586 287
jonebuckman 0:b9daf55d7586 288 int value = getRegister(_LDC1000_CLK_CONFIG) & ~_LDC1000_CLK_CONFIG_MASK_PD;
jonebuckman 0:b9daf55d7586 289
jonebuckman 0:b9daf55d7586 290 value |= pd;
jonebuckman 0:b9daf55d7586 291
jonebuckman 0:b9daf55d7586 292 setRegister(_LDC1000_CLK_CONFIG, value);
jonebuckman 0:b9daf55d7586 293
jonebuckman 0:b9daf55d7586 294 }
jonebuckman 0:b9daf55d7586 295
jonebuckman 0:b9daf55d7586 296
jonebuckman 0:b9daf55d7586 297 int LDC1000::getClockTimeBase(void) {
jonebuckman 0:b9daf55d7586 298
jonebuckman 0:b9daf55d7586 299 int value = getRegister(_LDC1000_CLK_CONFIG) & ~_LDC1000_CLK_CONFIG_MASK_PD;
jonebuckman 0:b9daf55d7586 300
jonebuckman 0:b9daf55d7586 301 return (value);
jonebuckman 0:b9daf55d7586 302
jonebuckman 0:b9daf55d7586 303 }
jonebuckman 0:b9daf55d7586 304
jonebuckman 0:b9daf55d7586 305
jonebuckman 0:b9daf55d7586 306 void LDC1000::setComparatorThresholdHighLSB(int data) {
jonebuckman 0:b9daf55d7586 307
jonebuckman 0:b9daf55d7586 308 setRegister(_LDC1000_CMP_THLD_HI_LSB, data);
jonebuckman 0:b9daf55d7586 309
jonebuckman 0:b9daf55d7586 310 }
jonebuckman 0:b9daf55d7586 311
jonebuckman 0:b9daf55d7586 312
jonebuckman 0:b9daf55d7586 313 int LDC1000::getComparatorThresholdHighLSB(void) {
jonebuckman 0:b9daf55d7586 314
jonebuckman 0:b9daf55d7586 315 int value = getRegister(_LDC1000_CMP_THLD_HI_LSB);
jonebuckman 0:b9daf55d7586 316
jonebuckman 0:b9daf55d7586 317 return (value);
jonebuckman 0:b9daf55d7586 318
jonebuckman 0:b9daf55d7586 319 }
jonebuckman 0:b9daf55d7586 320
jonebuckman 0:b9daf55d7586 321
jonebuckman 0:b9daf55d7586 322 void LDC1000::setComparatorThresholdHighMSB(int data) {
jonebuckman 0:b9daf55d7586 323
jonebuckman 0:b9daf55d7586 324 setRegister(_LDC1000_CMP_THLD_HI_MSB, data);
jonebuckman 0:b9daf55d7586 325
jonebuckman 0:b9daf55d7586 326 }
jonebuckman 0:b9daf55d7586 327
jonebuckman 0:b9daf55d7586 328
jonebuckman 0:b9daf55d7586 329 int LDC1000::getComparatorThresholdHighMSB(void) {
jonebuckman 0:b9daf55d7586 330
jonebuckman 0:b9daf55d7586 331 int value = getRegister(_LDC1000_CMP_THLD_HI_MSB);
jonebuckman 0:b9daf55d7586 332
jonebuckman 0:b9daf55d7586 333 return (value);
jonebuckman 0:b9daf55d7586 334
jonebuckman 0:b9daf55d7586 335 }
jonebuckman 0:b9daf55d7586 336
jonebuckman 0:b9daf55d7586 337
jonebuckman 0:b9daf55d7586 338 void LDC1000::setComparatorThresholdLowLSB(int data) {
jonebuckman 0:b9daf55d7586 339
jonebuckman 0:b9daf55d7586 340 setRegister(_LDC1000_CMP_THLD_LO_LSB, data);
jonebuckman 0:b9daf55d7586 341
jonebuckman 0:b9daf55d7586 342 }
jonebuckman 0:b9daf55d7586 343
jonebuckman 0:b9daf55d7586 344
jonebuckman 0:b9daf55d7586 345 int LDC1000::getComparatorThresholdLowLSB(void) {
jonebuckman 0:b9daf55d7586 346
jonebuckman 0:b9daf55d7586 347 int value = getRegister(_LDC1000_CMP_THLD_LO_LSB);
jonebuckman 0:b9daf55d7586 348
jonebuckman 0:b9daf55d7586 349 return (value);
jonebuckman 0:b9daf55d7586 350
jonebuckman 0:b9daf55d7586 351 }
jonebuckman 0:b9daf55d7586 352
jonebuckman 0:b9daf55d7586 353
jonebuckman 0:b9daf55d7586 354 void LDC1000::setINTBPin(int mode) {
jonebuckman 0:b9daf55d7586 355
jonebuckman 0:b9daf55d7586 356 if ( ( mode < 0 ) || ( mode > 4 ) || ( mode == 3 ) ) {
jonebuckman 0:b9daf55d7586 357
jonebuckman 0:b9daf55d7586 358 error( "LDC1000: Invalid INTB pin setting %d\r\n", mode );
jonebuckman 0:b9daf55d7586 359 return;
jonebuckman 0:b9daf55d7586 360
jonebuckman 0:b9daf55d7586 361 }
jonebuckman 0:b9daf55d7586 362
jonebuckman 0:b9daf55d7586 363 int value = getRegister(_LDC1000_INTB_PIN_CONFIG) & ~_LDC1000_INTB_PIN_CONFIG_MASK_MODE;
jonebuckman 0:b9daf55d7586 364
jonebuckman 0:b9daf55d7586 365 value |= mode;
jonebuckman 0:b9daf55d7586 366
jonebuckman 0:b9daf55d7586 367 setRegister(_LDC1000_INTB_PIN_CONFIG, value);
jonebuckman 0:b9daf55d7586 368
jonebuckman 0:b9daf55d7586 369 }
jonebuckman 0:b9daf55d7586 370
jonebuckman 0:b9daf55d7586 371
jonebuckman 0:b9daf55d7586 372 int LDC1000::getINTBPin(void) {
jonebuckman 0:b9daf55d7586 373
jonebuckman 0:b9daf55d7586 374 int value = getRegister(_LDC1000_INTB_PIN_CONFIG) & ~_LDC1000_INTB_PIN_CONFIG_MASK_MODE;
jonebuckman 0:b9daf55d7586 375
jonebuckman 0:b9daf55d7586 376 return (value);
jonebuckman 0:b9daf55d7586 377
jonebuckman 0:b9daf55d7586 378 }
jonebuckman 0:b9daf55d7586 379
jonebuckman 0:b9daf55d7586 380
jonebuckman 0:b9daf55d7586 381 void LDC1000::setPower(int data) {
jonebuckman 0:b9daf55d7586 382
jonebuckman 0:b9daf55d7586 383 setRegister(_LDC1000_PWR_CONFIG, data & ~_LDC1000_PWR_CONFIG_MASK);
jonebuckman 0:b9daf55d7586 384
jonebuckman 0:b9daf55d7586 385 }
jonebuckman 0:b9daf55d7586 386
jonebuckman 0:b9daf55d7586 387
jonebuckman 0:b9daf55d7586 388 int LDC1000::getPower(void) {
jonebuckman 0:b9daf55d7586 389
jonebuckman 0:b9daf55d7586 390 int value = getRegister(_LDC1000_PWR_CONFIG) & ~_LDC1000_PWR_CONFIG_MASK;
jonebuckman 0:b9daf55d7586 391
jonebuckman 0:b9daf55d7586 392 return (value);
jonebuckman 0:b9daf55d7586 393
jonebuckman 0:b9daf55d7586 394 }
jonebuckman 0:b9daf55d7586 395
jonebuckman 0:b9daf55d7586 396
jonebuckman 0:b9daf55d7586 397 int LDC1000::getStatus(void) {
jonebuckman 0:b9daf55d7586 398
jonebuckman 0:b9daf55d7586 399 int value = getRegister(_LDC1000_STATUS) & ~_LDC1000_STATUS_MASK;
jonebuckman 0:b9daf55d7586 400
jonebuckman 0:b9daf55d7586 401 return (value);
jonebuckman 0:b9daf55d7586 402
jonebuckman 0:b9daf55d7586 403 }
jonebuckman 0:b9daf55d7586 404
jonebuckman 0:b9daf55d7586 405
jonebuckman 0:b9daf55d7586 406 int LDC1000::getProximityDataLSB(void) {
jonebuckman 0:b9daf55d7586 407
jonebuckman 0:b9daf55d7586 408 int value = getRegister(_LDC1000_PRX_DATA_LSB);
jonebuckman 0:b9daf55d7586 409
jonebuckman 0:b9daf55d7586 410 return (value);
jonebuckman 0:b9daf55d7586 411
jonebuckman 0:b9daf55d7586 412 }
jonebuckman 0:b9daf55d7586 413
jonebuckman 0:b9daf55d7586 414
jonebuckman 0:b9daf55d7586 415 int LDC1000::getProximityDataMSB(void) {
jonebuckman 0:b9daf55d7586 416
jonebuckman 0:b9daf55d7586 417 int value = getRegister(_LDC1000_PRX_DATA_MSB);
jonebuckman 0:b9daf55d7586 418
jonebuckman 0:b9daf55d7586 419 return (value);
jonebuckman 0:b9daf55d7586 420
jonebuckman 0:b9daf55d7586 421 }
jonebuckman 0:b9daf55d7586 422
jonebuckman 0:b9daf55d7586 423
jonebuckman 0:b9daf55d7586 424 int LDC1000::getFrequencyCounterLSB(void) {
jonebuckman 0:b9daf55d7586 425
jonebuckman 0:b9daf55d7586 426 int value = getRegister(_LDC1000_FREQ_CNT_DATA_LSB);
jonebuckman 0:b9daf55d7586 427
jonebuckman 0:b9daf55d7586 428 return (value);
jonebuckman 0:b9daf55d7586 429
jonebuckman 0:b9daf55d7586 430 }
jonebuckman 0:b9daf55d7586 431
jonebuckman 0:b9daf55d7586 432
jonebuckman 0:b9daf55d7586 433 int LDC1000::getFrequencyCounterMIDSB(void) {
jonebuckman 0:b9daf55d7586 434
jonebuckman 0:b9daf55d7586 435 int value = getRegister(_LDC1000_FREQ_CNT_DATA_MIDB);
jonebuckman 0:b9daf55d7586 436
jonebuckman 0:b9daf55d7586 437 return (value);
jonebuckman 0:b9daf55d7586 438
jonebuckman 0:b9daf55d7586 439 }
jonebuckman 0:b9daf55d7586 440
jonebuckman 0:b9daf55d7586 441
jonebuckman 0:b9daf55d7586 442 int LDC1000::getFrequencyCounterMSB(void) {
jonebuckman 0:b9daf55d7586 443
jonebuckman 0:b9daf55d7586 444 int value = getRegister(_LDC1000_FREQ_CNT_DATA_MSB);
jonebuckman 0:b9daf55d7586 445
jonebuckman 0:b9daf55d7586 446 return (value);
jonebuckman 0:b9daf55d7586 447
jonebuckman 0:b9daf55d7586 448 }
jonebuckman 0:b9daf55d7586 449
jonebuckman 0:b9daf55d7586 450
jonebuckman 0:b9daf55d7586 451 void LDC1000::setRegister(int regAddress, int regData) {
jonebuckman 0:b9daf55d7586 452
jonebuckman 0:b9daf55d7586 453 int cn = (_LDC1000_SPI_CMD_WR_REG | (regAddress & _LDC1000_REG_ADDRESS_MASK));
jonebuckman 0:b9daf55d7586 454
jonebuckman 0:b9daf55d7586 455 nCS_ = 0;
jonebuckman 0:b9daf55d7586 456
jonebuckman 0:b9daf55d7586 457 int status = spi_.write(cn);
jonebuckman 0:b9daf55d7586 458
jonebuckman 0:b9daf55d7586 459 spi_.write(regData & 0xFF);
jonebuckman 0:b9daf55d7586 460
jonebuckman 0:b9daf55d7586 461 nCS_ = 1;
jonebuckman 0:b9daf55d7586 462
jonebuckman 0:b9daf55d7586 463 wait_us( _LDC1000_TIMING_Tpece2csn_us );
jonebuckman 0:b9daf55d7586 464
jonebuckman 0:b9daf55d7586 465 }
jonebuckman 0:b9daf55d7586 466
jonebuckman 0:b9daf55d7586 467
jonebuckman 0:b9daf55d7586 468 int LDC1000::getRegister(int regAddress) {
jonebuckman 0:b9daf55d7586 469
jonebuckman 0:b9daf55d7586 470 int cn = (_LDC1000_SPI_CMD_RD_REG | (regAddress & _LDC1000_REG_ADDRESS_MASK));
jonebuckman 0:b9daf55d7586 471
jonebuckman 0:b9daf55d7586 472 nCS_ = 0;
jonebuckman 0:b9daf55d7586 473
jonebuckman 0:b9daf55d7586 474 int status = spi_.write(cn);
jonebuckman 0:b9daf55d7586 475
jonebuckman 0:b9daf55d7586 476 int dn = spi_.write(_LDC1000_SPI_CMD_NOP);
jonebuckman 0:b9daf55d7586 477
jonebuckman 0:b9daf55d7586 478 nCS_ = 1;
jonebuckman 0:b9daf55d7586 479
jonebuckman 0:b9daf55d7586 480 return dn;
jonebuckman 0:b9daf55d7586 481
jonebuckman 0:b9daf55d7586 482 }
jonebuckman 0:b9daf55d7586 483