Library for using multiple SI1142 sensor
Fork of SI1141 by
SI1143.cpp@10:a89555c4f62a, 2014-06-04 (annotated)
- Committer:
- dmcohen24
- Date:
- Wed Jun 04 23:12:42 2014 +0000
- Revision:
- 10:a89555c4f62a
- Parent:
- 9:31d4e955ee92
Enables multiple Si1142 sensors
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
GAT27 | 2:21381f11a5af | 1 | /** |
GAT27 | 2:21381f11a5af | 2 | * @author Guillermo A Torijano |
GAT27 | 2:21381f11a5af | 3 | * |
GAT27 | 2:21381f11a5af | 4 | * @section LICENSE |
GAT27 | 2:21381f11a5af | 5 | * |
GAT27 | 2:21381f11a5af | 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
GAT27 | 2:21381f11a5af | 7 | * of this software and associated documentation files (the "Software"), to deal |
GAT27 | 2:21381f11a5af | 8 | * in the Software without restriction, including without limitation the rights |
GAT27 | 2:21381f11a5af | 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
GAT27 | 2:21381f11a5af | 10 | * copies of the Software, and to permit persons to whom the Software is |
GAT27 | 2:21381f11a5af | 11 | * furnished to do so, subject to the following conditions: |
GAT27 | 2:21381f11a5af | 12 | * |
GAT27 | 2:21381f11a5af | 13 | * The above copyright notice and this permission notice shall be included in |
GAT27 | 2:21381f11a5af | 14 | * all copies or substantial portions of the Software. |
GAT27 | 2:21381f11a5af | 15 | * |
GAT27 | 2:21381f11a5af | 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
GAT27 | 2:21381f11a5af | 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
GAT27 | 2:21381f11a5af | 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
GAT27 | 2:21381f11a5af | 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
GAT27 | 2:21381f11a5af | 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
GAT27 | 2:21381f11a5af | 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
GAT27 | 2:21381f11a5af | 22 | * THE SOFTWARE. |
GAT27 | 2:21381f11a5af | 23 | * |
GAT27 | 2:21381f11a5af | 24 | * @section DESCRIPTION |
GAT27 | 2:21381f11a5af | 25 | * |
GAT27 | 2:21381f11a5af | 26 | * Parallax SI1143 Gesture Sensor. |
GAT27 | 2:21381f11a5af | 27 | * |
GAT27 | 2:21381f11a5af | 28 | * Datasheet: |
GAT27 | 2:21381f11a5af | 29 | * |
GAT27 | 2:21381f11a5af | 30 | * http://www.silabs.com/Support%20Documents/TechnicalDocs/Si114x.pdf |
GAT27 | 2:21381f11a5af | 31 | */ |
GAT27 | 2:21381f11a5af | 32 | |
GAT27 | 0:18ebb7348150 | 33 | #include "SI1143.h" |
GAT27 | 0:18ebb7348150 | 34 | |
dmcohen24 | 10:a89555c4f62a | 35 | SI1143::SI1143(I2C* comm, PinName vcc, PinName enable, char offset) |
GAT27 | 0:18ebb7348150 | 36 | { |
GAT27 | 0:18ebb7348150 | 37 | wait_ms(30); |
dmcohen24 | 10:a89555c4f62a | 38 | |
dmcohen24 | 10:a89555c4f62a | 39 | on = new DigitalOut(vcc); |
dmcohen24 | 10:a89555c4f62a | 40 | en = new DigitalOut(enable); |
GAT27 | 0:18ebb7348150 | 41 | |
dmcohen24 | 10:a89555c4f62a | 42 | on->write(0); |
dmcohen24 | 10:a89555c4f62a | 43 | en->write(0); |
dmcohen24 | 10:a89555c4f62a | 44 | wait_ms(30); |
dmcohen24 | 10:a89555c4f62a | 45 | |
dmcohen24 | 10:a89555c4f62a | 46 | adrs = IR_ADDRESS; |
dmcohen24 | 10:a89555c4f62a | 47 | i2c_ = comm; |
dmcohen24 | 10:a89555c4f62a | 48 | |
dmcohen24 | 10:a89555c4f62a | 49 | restart(offset); |
GAT27 | 4:af8f820733e0 | 50 | } |
GAT27 | 4:af8f820733e0 | 51 | |
dmcohen24 | 10:a89555c4f62a | 52 | void SI1143::restart(char offset) |
dmcohen24 | 10:a89555c4f62a | 53 | { |
dmcohen24 | 10:a89555c4f62a | 54 | DigitalOut l3(LED3); |
dmcohen24 | 10:a89555c4f62a | 55 | l3 = 0; |
dmcohen24 | 10:a89555c4f62a | 56 | |
dmcohen24 | 10:a89555c4f62a | 57 | wait_ms(30); |
dmcohen24 | 10:a89555c4f62a | 58 | on->write(1); |
dmcohen24 | 10:a89555c4f62a | 59 | wait_ms(30); |
dmcohen24 | 10:a89555c4f62a | 60 | en->write(1); |
GAT27 | 0:18ebb7348150 | 61 | wait_ms(30); |
GAT27 | 0:18ebb7348150 | 62 | |
dmcohen24 | 10:a89555c4f62a | 63 | //printf("%d\r\n",adrs); |
dmcohen24 | 10:a89555c4f62a | 64 | |
dmcohen24 | 10:a89555c4f62a | 65 | command(RESET); |
dmcohen24 | 10:a89555c4f62a | 66 | l3 = 1; |
dmcohen24 | 10:a89555c4f62a | 67 | wait_ms(30); |
dmcohen24 | 8:70933bf445af | 68 | //Do this because you have to |
GAT27 | 5:3fadc61598bc | 69 | write_reg(HW_KEY,HW_KEY_VAL0); |
dmcohen24 | 10:a89555c4f62a | 70 | //Give new address |
dmcohen24 | 10:a89555c4f62a | 71 | write_reg(PARAM_WR, adrs + offset); |
dmcohen24 | 10:a89555c4f62a | 72 | //write_reg(PARAM_WR, ALS_IR_TASK + ALS_VIS_TASK + PS1_TASK + PS2_TASK + PS3_TASK); |
dmcohen24 | 10:a89555c4f62a | 73 | command(PARAM_SET + (I2C_ADDR & 0x1F)); |
dmcohen24 | 10:a89555c4f62a | 74 | |
dmcohen24 | 10:a89555c4f62a | 75 | //set new address |
dmcohen24 | 10:a89555c4f62a | 76 | command(BUSADDR); |
dmcohen24 | 10:a89555c4f62a | 77 | |
dmcohen24 | 10:a89555c4f62a | 78 | adrs = adrs + offset; |
dmcohen24 | 8:70933bf445af | 79 | |
dmcohen24 | 8:70933bf445af | 80 | // Setting up LED Power to FULL JUICE |
dmcohen24 | 10:a89555c4f62a | 81 | write_reg(PS_LED21,0xCC); // Was 0x0A |
dmcohen24 | 7:f1303b85db58 | 82 | write_reg(PS_LED3,0x00); |
dmcohen24 | 8:70933bf445af | 83 | |
dmcohen24 | 8:70933bf445af | 84 | //Activate ALS_IR, ALS_VIS, and PS1 |
dmcohen24 | 10:a89555c4f62a | 85 | write_reg(PARAM_WR, ALS_IR_TASK + ALS_VIS_TASK + PS1_TASK + PS2_TASK); |
dmcohen24 | 8:70933bf445af | 86 | //write_reg(PARAM_WR, ALS_IR_TASK + ALS_VIS_TASK + PS1_TASK + PS2_TASK + PS3_TASK); |
dmcohen24 | 8:70933bf445af | 87 | command(PARAM_SET + (CHLIST & 0x1F)); |
GAT27 | 0:18ebb7348150 | 88 | |
dmcohen24 | 8:70933bf445af | 89 | /* |
dmcohen24 | 8:70933bf445af | 90 | // Set PS_RANGE to high signal range |
dmcohen24 | 8:70933bf445af | 91 | write_reg(PARAM_WR, 0x04); // 0x24 for high signal, 0x04 for normal |
dmcohen24 | 8:70933bf445af | 92 | command(PARAM_SET + (PS_ADC_MISC & 0x1F)); |
dmcohen24 | 8:70933bf445af | 93 | */ |
dmcohen24 | 8:70933bf445af | 94 | //Set PS_ADC_COUNTER to lower time between ADC samples |
dmcohen24 | 10:a89555c4f62a | 95 | write_reg(PARAM_WR, 0x07); |
dmcohen24 | 8:70933bf445af | 96 | command(PARAM_SET + (PS_ADC_COUNTER & 0x1F)); |
dmcohen24 | 8:70933bf445af | 97 | |
dmcohen24 | 8:70933bf445af | 98 | //Turn up the juice on PS ACD GAIN! |
dmcohen24 | 9:31d4e955ee92 | 99 | write_reg(PARAM_WR, 0x00); |
dmcohen24 | 8:70933bf445af | 100 | command(PARAM_SET + (PS_ADC_GAIN & 0x1F)); |
dmcohen24 | 8:70933bf445af | 101 | |
GAT27 | 0:18ebb7348150 | 102 | |
dmcohen24 | 9:31d4e955ee92 | 103 | write_reg(INT_CFG,0x01); // Configure Interrupts |
dmcohen24 | 10:a89555c4f62a | 104 | write_reg(IRQ_ENABLE,0x04); // Enable PS1 (0x04) Enable PS1 & PS2 (0x0C) |
GAT27 | 0:18ebb7348150 | 105 | write_reg(IRQ_MODE1,0); |
GAT27 | 0:18ebb7348150 | 106 | write_reg(IRQ_MODE2,0); |
dmcohen24 | 7:f1303b85db58 | 107 | |
dmcohen24 | 10:a89555c4f62a | 108 | //write_reg(MEAS_RATE,0x94); //0x84 - wakes up every 10 ms |
dmcohen24 | 10:a89555c4f62a | 109 | //write_reg(PS_RATE,0x08); //0x8 - wakes up every time measurement clock wakes up |
dmcohen24 | 9:31d4e955ee92 | 110 | |
dmcohen24 | 7:f1303b85db58 | 111 | //write_reg(PS_ADC_MISC,0x24); |
dmcohen24 | 7:f1303b85db58 | 112 | //write_reg(PS1_ADCMUX,0x03); |
GAT27 | 0:18ebb7348150 | 113 | } |
GAT27 | 0:18ebb7348150 | 114 | |
GAT27 | 0:18ebb7348150 | 115 | void SI1143::command(char cmd) |
GAT27 | 0:18ebb7348150 | 116 | { |
GAT27 | 0:18ebb7348150 | 117 | int val; |
dmcohen24 | 10:a89555c4f62a | 118 | DigitalOut l2(LED2); |
GAT27 | 0:18ebb7348150 | 119 | |
GAT27 | 0:18ebb7348150 | 120 | val = read_reg(RESPONSE,1); |
GAT27 | 0:18ebb7348150 | 121 | while(val!=0) |
GAT27 | 0:18ebb7348150 | 122 | { |
GAT27 | 0:18ebb7348150 | 123 | write_reg(COMMAND,NOP); |
GAT27 | 0:18ebb7348150 | 124 | val = read_reg(RESPONSE,1); |
dmcohen24 | 10:a89555c4f62a | 125 | l2 = 1; |
GAT27 | 0:18ebb7348150 | 126 | } |
dmcohen24 | 10:a89555c4f62a | 127 | l2 = 0; |
GAT27 | 0:18ebb7348150 | 128 | do{ |
GAT27 | 0:18ebb7348150 | 129 | write_reg(COMMAND,cmd); |
GAT27 | 0:18ebb7348150 | 130 | if(cmd==RESET) break; |
GAT27 | 0:18ebb7348150 | 131 | val = read_reg(RESPONSE,1); |
GAT27 | 0:18ebb7348150 | 132 | }while(val==0); |
GAT27 | 0:18ebb7348150 | 133 | } |
GAT27 | 0:18ebb7348150 | 134 | |
GAT27 | 1:28beeb2f209b | 135 | char SI1143::read_reg(/*unsigned*/ char address, int num_data) // Read a register |
GAT27 | 0:18ebb7348150 | 136 | { |
GAT27 | 0:18ebb7348150 | 137 | char tx[1]; |
GAT27 | 0:18ebb7348150 | 138 | char rx[1]; |
GAT27 | 0:18ebb7348150 | 139 | |
GAT27 | 1:28beeb2f209b | 140 | //i2c_->start(); |
GAT27 | 0:18ebb7348150 | 141 | tx[0] = address; |
dmcohen24 | 10:a89555c4f62a | 142 | i2c_->write((adrs << 1) & 0xFE, tx, num_data); |
GAT27 | 0:18ebb7348150 | 143 | wait_ms(1); |
GAT27 | 1:28beeb2f209b | 144 | //i2c_->stop(); |
GAT27 | 0:18ebb7348150 | 145 | |
GAT27 | 1:28beeb2f209b | 146 | //i2c_->start(); |
dmcohen24 | 10:a89555c4f62a | 147 | i2c_->read((adrs << 1) | 0x01, rx, num_data); |
GAT27 | 0:18ebb7348150 | 148 | wait_ms(1); |
GAT27 | 1:28beeb2f209b | 149 | //i2c_->stop(); |
GAT27 | 0:18ebb7348150 | 150 | |
GAT27 | 0:18ebb7348150 | 151 | return rx[0]; |
GAT27 | 0:18ebb7348150 | 152 | } |
GAT27 | 0:18ebb7348150 | 153 | |
GAT27 | 1:28beeb2f209b | 154 | void SI1143::write_reg(char address, char num_data) // Write a resigter |
GAT27 | 1:28beeb2f209b | 155 | { |
GAT27 | 0:18ebb7348150 | 156 | char tx[2]; |
GAT27 | 5:3fadc61598bc | 157 | |
GAT27 | 5:3fadc61598bc | 158 | //i2c_->start(); |
GAT27 | 0:18ebb7348150 | 159 | tx[0] = address; |
GAT27 | 0:18ebb7348150 | 160 | tx[1] = num_data; |
dmcohen24 | 10:a89555c4f62a | 161 | i2c_->write((adrs << 1) & 0xFE, tx, 2); |
GAT27 | 0:18ebb7348150 | 162 | wait_ms(1); |
GAT27 | 1:28beeb2f209b | 163 | //i2c_->stop(); |
GAT27 | 0:18ebb7348150 | 164 | } |
GAT27 | 0:18ebb7348150 | 165 | |
GAT27 | 5:3fadc61598bc | 166 | void SI1143::bias(int ready, int repeat) |
GAT27 | 0:18ebb7348150 | 167 | { |
GAT27 | 5:3fadc61598bc | 168 | wait(ready); |
dmcohen24 | 8:70933bf445af | 169 | //bias1 = get_ps1(repeat); |
dmcohen24 | 8:70933bf445af | 170 | bias1 = 0; |
dmcohen24 | 10:a89555c4f62a | 171 | bias2 = 0; |
GAT27 | 5:3fadc61598bc | 172 | bias3 = get_ps3(repeat); |
GAT27 | 0:18ebb7348150 | 173 | } |
GAT27 | 0:18ebb7348150 | 174 | |
dmcohen24 | 9:31d4e955ee92 | 175 | int SI1143::get_ps1(int repeat) // Read the data for the first LED (Used in forced mode) |
GAT27 | 0:18ebb7348150 | 176 | { |
GAT27 | 5:3fadc61598bc | 177 | int stack = 0; |
GAT27 | 5:3fadc61598bc | 178 | |
GAT27 | 0:18ebb7348150 | 179 | command(PSALS_FORCE); |
GAT27 | 0:18ebb7348150 | 180 | |
GAT27 | 5:3fadc61598bc | 181 | for(int r=repeat; r>0; r=r-1) |
GAT27 | 5:3fadc61598bc | 182 | { |
GAT27 | 5:3fadc61598bc | 183 | LowB = read_reg(PS1_DATA0,1); |
GAT27 | 5:3fadc61598bc | 184 | HighB = read_reg(PS1_DATA1,1); |
GAT27 | 5:3fadc61598bc | 185 | stack = stack + (HighB * 256) + LowB; |
GAT27 | 5:3fadc61598bc | 186 | } |
GAT27 | 5:3fadc61598bc | 187 | PS1 = stack / repeat; |
GAT27 | 0:18ebb7348150 | 188 | |
GAT27 | 0:18ebb7348150 | 189 | if(PS1 > bias1) |
GAT27 | 0:18ebb7348150 | 190 | PS1 = PS1 - bias1; |
GAT27 | 0:18ebb7348150 | 191 | else |
GAT27 | 0:18ebb7348150 | 192 | PS1 = 0; |
GAT27 | 5:3fadc61598bc | 193 | |
GAT27 | 5:3fadc61598bc | 194 | return PS1; |
GAT27 | 5:3fadc61598bc | 195 | } |
GAT27 | 5:3fadc61598bc | 196 | |
dmcohen24 | 9:31d4e955ee92 | 197 | void SI1143::start_ps_auto() |
dmcohen24 | 9:31d4e955ee92 | 198 | { |
dmcohen24 | 9:31d4e955ee92 | 199 | command(PS_AUTO); |
dmcohen24 | 9:31d4e955ee92 | 200 | } |
dmcohen24 | 9:31d4e955ee92 | 201 | |
dmcohen24 | 9:31d4e955ee92 | 202 | int SI1143::read_ps1() // Read the data for the first LED (Used in autonomous mode) |
dmcohen24 | 9:31d4e955ee92 | 203 | { |
dmcohen24 | 9:31d4e955ee92 | 204 | |
dmcohen24 | 9:31d4e955ee92 | 205 | |
dmcohen24 | 9:31d4e955ee92 | 206 | LowB = read_reg(PS1_DATA0,1); |
dmcohen24 | 9:31d4e955ee92 | 207 | HighB = read_reg(PS1_DATA1,1); |
dmcohen24 | 9:31d4e955ee92 | 208 | PS1 = (HighB * 256) + LowB; |
dmcohen24 | 9:31d4e955ee92 | 209 | |
dmcohen24 | 9:31d4e955ee92 | 210 | if(PS1 > bias1) |
dmcohen24 | 9:31d4e955ee92 | 211 | PS1 = PS1 - bias1; |
dmcohen24 | 9:31d4e955ee92 | 212 | else |
dmcohen24 | 9:31d4e955ee92 | 213 | PS1 = 0; |
dmcohen24 | 9:31d4e955ee92 | 214 | |
dmcohen24 | 9:31d4e955ee92 | 215 | return PS1; |
dmcohen24 | 9:31d4e955ee92 | 216 | } |
dmcohen24 | 9:31d4e955ee92 | 217 | |
GAT27 | 5:3fadc61598bc | 218 | int SI1143::get_ps2(int repeat) // Read the data for the second LED |
GAT27 | 5:3fadc61598bc | 219 | { |
GAT27 | 5:3fadc61598bc | 220 | int stack = 0; |
GAT27 | 5:3fadc61598bc | 221 | |
GAT27 | 5:3fadc61598bc | 222 | command(PSALS_FORCE); |
GAT27 | 5:3fadc61598bc | 223 | |
GAT27 | 5:3fadc61598bc | 224 | for(int r=repeat; r>0; r=r-1) |
GAT27 | 5:3fadc61598bc | 225 | { |
GAT27 | 5:3fadc61598bc | 226 | LowB = read_reg(PS2_DATA0,1); |
GAT27 | 5:3fadc61598bc | 227 | HighB = read_reg(PS2_DATA1,1); |
GAT27 | 5:3fadc61598bc | 228 | stack = stack + (HighB * 256) + LowB; |
GAT27 | 5:3fadc61598bc | 229 | } |
GAT27 | 5:3fadc61598bc | 230 | PS2 = stack / repeat; |
GAT27 | 5:3fadc61598bc | 231 | |
GAT27 | 0:18ebb7348150 | 232 | if(PS2 > bias2) |
GAT27 | 0:18ebb7348150 | 233 | PS2 = PS2 - bias2; |
GAT27 | 0:18ebb7348150 | 234 | else |
GAT27 | 0:18ebb7348150 | 235 | PS2 = 0; |
GAT27 | 5:3fadc61598bc | 236 | |
GAT27 | 5:3fadc61598bc | 237 | return PS2; |
GAT27 | 5:3fadc61598bc | 238 | } |
GAT27 | 5:3fadc61598bc | 239 | |
dmcohen24 | 10:a89555c4f62a | 240 | int SI1143::read_ps2() // Read the data for the first LED (Used in autonomous mode) |
dmcohen24 | 10:a89555c4f62a | 241 | { |
dmcohen24 | 10:a89555c4f62a | 242 | |
dmcohen24 | 10:a89555c4f62a | 243 | LowB = read_reg(PS2_DATA0,1); |
dmcohen24 | 10:a89555c4f62a | 244 | HighB = read_reg(PS2_DATA1,1); |
dmcohen24 | 10:a89555c4f62a | 245 | PS2 = (HighB * 256) + LowB; |
dmcohen24 | 10:a89555c4f62a | 246 | |
dmcohen24 | 10:a89555c4f62a | 247 | if(PS2 > bias2) |
dmcohen24 | 10:a89555c4f62a | 248 | PS2 = PS2 - bias2; |
dmcohen24 | 10:a89555c4f62a | 249 | else |
dmcohen24 | 10:a89555c4f62a | 250 | PS2 = 0; |
dmcohen24 | 10:a89555c4f62a | 251 | |
dmcohen24 | 10:a89555c4f62a | 252 | return PS2; |
dmcohen24 | 10:a89555c4f62a | 253 | } |
dmcohen24 | 10:a89555c4f62a | 254 | |
GAT27 | 5:3fadc61598bc | 255 | int SI1143::get_ps3(int repeat) // Read the data for the third LED |
GAT27 | 5:3fadc61598bc | 256 | { |
GAT27 | 5:3fadc61598bc | 257 | int stack = 0; |
GAT27 | 5:3fadc61598bc | 258 | |
GAT27 | 5:3fadc61598bc | 259 | command(PSALS_FORCE); |
GAT27 | 5:3fadc61598bc | 260 | |
GAT27 | 5:3fadc61598bc | 261 | for(int r=repeat; r>0; r=r-1) |
GAT27 | 5:3fadc61598bc | 262 | { |
GAT27 | 5:3fadc61598bc | 263 | LowB = read_reg(PS3_DATA0,1); |
GAT27 | 5:3fadc61598bc | 264 | HighB = read_reg(PS3_DATA1,1); |
GAT27 | 5:3fadc61598bc | 265 | stack = stack + (HighB * 256) + LowB; |
GAT27 | 5:3fadc61598bc | 266 | } |
GAT27 | 5:3fadc61598bc | 267 | PS3 = stack / repeat; |
GAT27 | 5:3fadc61598bc | 268 | |
GAT27 | 0:18ebb7348150 | 269 | if(PS3 > bias3) |
GAT27 | 0:18ebb7348150 | 270 | PS3 = PS3 - bias3; |
GAT27 | 0:18ebb7348150 | 271 | else |
GAT27 | 0:18ebb7348150 | 272 | PS3 = 0; |
GAT27 | 0:18ebb7348150 | 273 | |
GAT27 | 5:3fadc61598bc | 274 | return PS3; |
GAT27 | 0:18ebb7348150 | 275 | } |
GAT27 | 2:21381f11a5af | 276 | |
GAT27 | 5:3fadc61598bc | 277 | int SI1143::get_vis(int repeat) // Read the data for ambient light |
GAT27 | 5:3fadc61598bc | 278 | { |
GAT27 | 5:3fadc61598bc | 279 | int stack = 0; |
GAT27 | 5:3fadc61598bc | 280 | |
GAT27 | 5:3fadc61598bc | 281 | command(PSALS_FORCE); |
GAT27 | 5:3fadc61598bc | 282 | |
GAT27 | 5:3fadc61598bc | 283 | for(int r=repeat; r>0; r=r-1) |
GAT27 | 5:3fadc61598bc | 284 | { |
GAT27 | 5:3fadc61598bc | 285 | LowB = read_reg(ALS_VIS_DATA0,1); |
GAT27 | 5:3fadc61598bc | 286 | HighB = read_reg(ALS_VIS_DATA1,1); |
GAT27 | 5:3fadc61598bc | 287 | VIS = stack + (HighB * 256) + LowB; |
GAT27 | 5:3fadc61598bc | 288 | } |
GAT27 | 5:3fadc61598bc | 289 | VIS = stack / repeat; |
GAT27 | 5:3fadc61598bc | 290 | |
GAT27 | 5:3fadc61598bc | 291 | return VIS; |
GAT27 | 5:3fadc61598bc | 292 | } |
GAT27 | 4:af8f820733e0 | 293 | |
GAT27 | 5:3fadc61598bc | 294 | int SI1143::get_ir(int repeat) // Read the data for infrared light |
GAT27 | 5:3fadc61598bc | 295 | { |
GAT27 | 5:3fadc61598bc | 296 | int stack = 0; |
GAT27 | 5:3fadc61598bc | 297 | |
GAT27 | 5:3fadc61598bc | 298 | command(PSALS_FORCE); |
GAT27 | 5:3fadc61598bc | 299 | |
GAT27 | 5:3fadc61598bc | 300 | for(int r=repeat; r>0; r=r-1) |
GAT27 | 5:3fadc61598bc | 301 | { |
GAT27 | 5:3fadc61598bc | 302 | LowB = read_reg(ALS_IR_DATA0,1); |
GAT27 | 5:3fadc61598bc | 303 | HighB = read_reg(ALS_IR_DATA1,1); |
GAT27 | 5:3fadc61598bc | 304 | IR = stack + (HighB * 256) + LowB; |
GAT27 | 5:3fadc61598bc | 305 | } |
GAT27 | 5:3fadc61598bc | 306 | IR = stack / repeat; |
GAT27 | 5:3fadc61598bc | 307 | |
GAT27 | 5:3fadc61598bc | 308 | return IR; |
GAT27 | 5:3fadc61598bc | 309 | } |
dmcohen24 | 9:31d4e955ee92 | 310 | |
dmcohen24 | 9:31d4e955ee92 | 311 | void SI1143::clear_int() // Clear Interrupt register when an interrupt occurs. |
dmcohen24 | 9:31d4e955ee92 | 312 | { |
dmcohen24 | 9:31d4e955ee92 | 313 | write_reg(IRQ_STATUS, 0x3F); // Writes one to every interrupt status, thereby clearing them |
dmcohen24 | 10:a89555c4f62a | 314 | } |
dmcohen24 | 10:a89555c4f62a | 315 | |
dmcohen24 | 10:a89555c4f62a | 316 | char SI1143::read_PSint() // Clear Interrupt register when an interrupt occurs. |
dmcohen24 | 10:a89555c4f62a | 317 | { |
dmcohen24 | 10:a89555c4f62a | 318 | char tmp; |
dmcohen24 | 10:a89555c4f62a | 319 | char res; |
dmcohen24 | 10:a89555c4f62a | 320 | |
dmcohen24 | 10:a89555c4f62a | 321 | DigitalOut led3a(LED3); |
dmcohen24 | 10:a89555c4f62a | 322 | DigitalOut led4a(LED4); |
dmcohen24 | 10:a89555c4f62a | 323 | |
dmcohen24 | 10:a89555c4f62a | 324 | tmp = read_reg(IRQ_STATUS, 1); // Reads iterrupt register |
dmcohen24 | 10:a89555c4f62a | 325 | if( (tmp & 0x0C) == 0x0C ){ |
dmcohen24 | 10:a89555c4f62a | 326 | res = INT_PS12; |
dmcohen24 | 10:a89555c4f62a | 327 | } |
dmcohen24 | 10:a89555c4f62a | 328 | else if( (tmp & 0x0C) == 0x04 ){ |
dmcohen24 | 10:a89555c4f62a | 329 | res = INT_PS1; |
dmcohen24 | 10:a89555c4f62a | 330 | } |
dmcohen24 | 10:a89555c4f62a | 331 | else if( (tmp & 0x0C) == 0x08 ){ |
dmcohen24 | 10:a89555c4f62a | 332 | res = INT_PS2; |
dmcohen24 | 10:a89555c4f62a | 333 | } |
dmcohen24 | 10:a89555c4f62a | 334 | else { |
dmcohen24 | 10:a89555c4f62a | 335 | res = 0; |
dmcohen24 | 10:a89555c4f62a | 336 | } |
dmcohen24 | 10:a89555c4f62a | 337 | return res; |
dmcohen24 | 10:a89555c4f62a | 338 | |
dmcohen24 | 9:31d4e955ee92 | 339 | } |