IDT Optical Sensors / Mbed 2 deprecated OB1203_IDT

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Dependencies:   mbed OB1203_example_driver

main.cpp@5:ebe305e08430, 2018-05-14 (annotated)

Committer:
laserdad
Date:
Mon May 14 18:49:12 2018 +0000
Revision:
5:ebe305e08430
Parent:
4:3aee2ca931b8
Child:
6:aaa2f8fb5123
added corrected "dataIsNew" functions

Who changed what in which revision?

UserRevisionLine numberNew contents of line
laserdad 0:e9ae48b7f6f6 1 #include "mbed.h"
laserdad 0:e9ae48b7f6f6 2 #include "OB1203.h"
laserdad 0:e9ae48b7f6f6 3 #include "math.h"
laserdad 4:3aee2ca931b8 4 //#include "SoftI2C.h"
laserdad 0:e9ae48b7f6f6 5
laserdad 0:e9ae48b7f6f6 6 #define intb_pin D3
laserdad 0:e9ae48b7f6f6 7
laserdad 1:fb6b2b4d5d8a 8
laserdad 0:e9ae48b7f6f6 9 I2C i2c(I2C_SDA,I2C_SCL);
laserdad 4:3aee2ca931b8 10 //SoftI2C i2c(I2C_SDA,I2C_SCL);
laserdad 0:e9ae48b7f6f6 11 InterruptIn intb(intb_pin);
laserdad 0:e9ae48b7f6f6 12 DigitalOut sda_pullup(D11,1);
laserdad 0:e9ae48b7f6f6 13 DigitalOut scl_pullup(D12,1);
laserdad 0:e9ae48b7f6f6 14 DigitalOut intb_pullup(D13,1);
laserdad 0:e9ae48b7f6f6 15
laserdad 0:e9ae48b7f6f6 16 OB1203 ob1203(&i2c);
laserdad 2:ee175f471ecb 17 Serial pc(USBTX, USBRX,256000);
laserdad 0:e9ae48b7f6f6 18 Timer t;
laserdad 0:e9ae48b7f6f6 19
laserdad 2:ee175f471ecb 20 int sample_delay = 25; //ms
laserdad 1:fb6b2b4d5d8a 21
laserdad 1:fb6b2b4d5d8a 22
laserdad 5:ebe305e08430 23 bool mode = 0; //0 for PS_LS, 1 for PPG
laserdad 5:ebe305e08430 24 bool meas_ps = 1;
laserdad 3:d3a1fc19bee6 25 bool spo2 = 1; //0 for HR, 1 for SpO2
laserdad 0:e9ae48b7f6f6 26 bool intFlagged =0;
laserdad 4:3aee2ca931b8 27 bool afull = 1; //use Afull interrupt--otherwise PPG new data interrupt
laserdad 5:ebe305e08430 28 bool meas_temp = 1;
laserdad 1:fb6b2b4d5d8a 29
laserdad 0:e9ae48b7f6f6 30 void defaultConfig()
laserdad 0:e9ae48b7f6f6 31 {
laserdad 4:3aee2ca931b8 32 meas_temp ? ob1203.temp_en = TEMP_ON : ob1203.temp_en = TEMP_OFF;
laserdad 4:3aee2ca931b8 33
laserdad 4:3aee2ca931b8 34 ob1203.ls_res = LS_RES(0); //2= 18bit 100ms, 0= max res
laserdad 4:3aee2ca931b8 35 ob1203.ls_rate = LS_RATE(4); //2 =100ms, 4 = 500ms
laserdad 4:3aee2ca931b8 36 ob1203.ls_gain = LS_GAIN(3); //gain 3 default (range)
laserdad 1:fb6b2b4d5d8a 37 ob1203.ls_thres_hi = 0x000FFFFF;
laserdad 0:e9ae48b7f6f6 38 ob1203.ls_thres_lo = 0;
laserdad 0:e9ae48b7f6f6 39 ob1203.ls_sai = LS_SAI_OFF;
laserdad 0:e9ae48b7f6f6 40 ob1203.ls_mode = RGB_MODE;
laserdad 0:e9ae48b7f6f6 41 ob1203.ls_en = LS_ON;
laserdad 4:3aee2ca931b8 42
laserdad 0:e9ae48b7f6f6 43 ob1203.ps_sai_en = PS_SAI_OFF;
laserdad 5:ebe305e08430 44 // ob1203.ps_sai_en = PS_SAI_ON;
laserdad 1:fb6b2b4d5d8a 45 if(mode)
laserdad 1:fb6b2b4d5d8a 46 {
laserdad 3:d3a1fc19bee6 47 if (spo2)
laserdad 3:d3a1fc19bee6 48 {
laserdad 3:d3a1fc19bee6 49 ob1203.ppg_ps_mode = SPO2_MODE;
laserdad 3:d3a1fc19bee6 50 }
laserdad 3:d3a1fc19bee6 51 else
laserdad 3:d3a1fc19bee6 52 {
laserdad 3:d3a1fc19bee6 53 ob1203.ppg_ps_mode = HR_MODE;
laserdad 3:d3a1fc19bee6 54 }
laserdad 3:d3a1fc19bee6 55
laserdad 1:fb6b2b4d5d8a 56 }
laserdad 1:fb6b2b4d5d8a 57 else
laserdad 1:fb6b2b4d5d8a 58 {
laserdad 1:fb6b2b4d5d8a 59 ob1203.ppg_ps_mode = PS_MODE;
laserdad 1:fb6b2b4d5d8a 60 }
laserdad 1:fb6b2b4d5d8a 61 ob1203.ps_pulses = PS_PULSES(2);
laserdad 1:fb6b2b4d5d8a 62 // pc.printf("ps_pulses = %02X\r\n",ob1203.ps_pulses);
laserdad 3:d3a1fc19bee6 63 ob1203.ps_pwidth = PS_PWIDTH(4);
laserdad 3:d3a1fc19bee6 64 ob1203.ps_rate = PS_RATE(3);
laserdad 1:fb6b2b4d5d8a 65 // pc.printf("ps_rate = %02X\r\n",ob1203.ps_rate);
laserdad 0:e9ae48b7f6f6 66 ob1203.ps_avg_en = PS_AVG_OFF;
laserdad 0:e9ae48b7f6f6 67 ob1203.ps_can_ana = PS_CAN_ANA_0;
laserdad 0:e9ae48b7f6f6 68 ob1203.ps_digital_can = 0;
laserdad 0:e9ae48b7f6f6 69 ob1203.ps_hys_level = 0;
laserdad 4:3aee2ca931b8 70 meas_ps ? ob1203.ps_current = 0x3FF : ob1203.ps_current = 0x000;
laserdad 4:3aee2ca931b8 71 // ob1203.ps_current = 0;
laserdad 0:e9ae48b7f6f6 72 ob1203.ps_thres_hi = 0xFF;
laserdad 0:e9ae48b7f6f6 73 ob1203.ps_thres_lo = 0x00;
laserdad 0:e9ae48b7f6f6 74
laserdad 0:e9ae48b7f6f6 75 //interrupts
laserdad 0:e9ae48b7f6f6 76 ob1203.ls_int_sel = LS_INT_SEL_W;
laserdad 0:e9ae48b7f6f6 77 ob1203.ls_var_mode = LS_THRES_INT_MODE;
laserdad 0:e9ae48b7f6f6 78 ob1203.ls_int_en = LS_INT_ON;
laserdad 0:e9ae48b7f6f6 79 ob1203.ppg_ps_en = PPG_PS_ON;
laserdad 4:3aee2ca931b8 80
laserdad 0:e9ae48b7f6f6 81 ob1203.ps_logic_mode = PS_INT_READ_CLEARS;
laserdad 0:e9ae48b7f6f6 82 ob1203.ps_int_en = PS_INT_ON;
laserdad 0:e9ae48b7f6f6 83 ob1203.ls_persist = LS_PERSIST(2);
laserdad 0:e9ae48b7f6f6 84 ob1203.ps_persist = PS_PERSIST(2);
laserdad 4:3aee2ca931b8 85 //int
laserdad 4:3aee2ca931b8 86 if(afull)
laserdad 4:3aee2ca931b8 87 {
laserdad 4:3aee2ca931b8 88 ob1203.afull_int_en = AFULL_INT_ON;
laserdad 4:3aee2ca931b8 89 ob1203.ppg_int_en = PPG_INT_OFF;
laserdad 4:3aee2ca931b8 90 }
laserdad 4:3aee2ca931b8 91 else
laserdad 4:3aee2ca931b8 92 {
laserdad 4:3aee2ca931b8 93 ob1203.afull_int_en = AFULL_INT_OFF;
laserdad 4:3aee2ca931b8 94 ob1203.ppg_int_en = PPG_INT_ON;
laserdad 4:3aee2ca931b8 95 }
laserdad 0:e9ae48b7f6f6 96 //PPG
laserdad 4:3aee2ca931b8 97 ob1203.ir_current = 275;
laserdad 3:d3a1fc19bee6 98 if (spo2)
laserdad 3:d3a1fc19bee6 99 {
laserdad 4:3aee2ca931b8 100 // ob1203.r_current = 0x0FF;
laserdad 4:3aee2ca931b8 101 ob1203.r_current = 255;
laserdad 3:d3a1fc19bee6 102 }
laserdad 3:d3a1fc19bee6 103 else
laserdad 3:d3a1fc19bee6 104 {
laserdad 3:d3a1fc19bee6 105 ob1203.r_current = 0;
laserdad 3:d3a1fc19bee6 106 }
laserdad 4:3aee2ca931b8 107 ob1203.ppg_ps_gain = PPG_PS_GAIN_4;
laserdad 0:e9ae48b7f6f6 108 ob1203.ppg_pow_save = PPG_POW_SAVE_OFF;
laserdad 0:e9ae48b7f6f6 109 ob1203.led_flip = LED_FLIP_OFF;
laserdad 0:e9ae48b7f6f6 110 ob1203.ch1_can_ana = PPG_CH1_CAN(0);
laserdad 0:e9ae48b7f6f6 111 ob1203.ch2_can_ana = PPG_CH2_CAN(0);
laserdad 4:3aee2ca931b8 112 ob1203.ppg_avg = PPG_AVG(2); //2^n
laserdad 3:d3a1fc19bee6 113 ob1203.ppg_rate = PPG_RATE(1);
laserdad 3:d3a1fc19bee6 114 ob1203.ppg_pwidth = PPG_PWIDTH(3);
laserdad 0:e9ae48b7f6f6 115 ob1203.ppg_freq = PPG_FREQ_60HZ;
laserdad 2:ee175f471ecb 116 // ob1203.ppg_freq = PPG_FREQ_50HZ;
laserdad 3:d3a1fc19bee6 117
laserdad 0:e9ae48b7f6f6 118 ob1203.fifo_rollover_en = FIFO_ROLL_ON;
laserdad 0:e9ae48b7f6f6 119 ob1203.fifo_afull_samples_left = AFULL_SAMPLES_LEFT(8);
laserdad 0:e9ae48b7f6f6 120
laserdad 0:e9ae48b7f6f6 121 if(mode)
laserdad 0:e9ae48b7f6f6 122 {
laserdad 3:d3a1fc19bee6 123 if(spo2)
laserdad 3:d3a1fc19bee6 124 {
laserdad 3:d3a1fc19bee6 125 ob1203.init_spo2();
laserdad 3:d3a1fc19bee6 126 }
laserdad 3:d3a1fc19bee6 127 else
laserdad 3:d3a1fc19bee6 128 {
laserdad 3:d3a1fc19bee6 129 ob1203.init_hr();
laserdad 3:d3a1fc19bee6 130 }
laserdad 0:e9ae48b7f6f6 131 }
laserdad 0:e9ae48b7f6f6 132 else
laserdad 0:e9ae48b7f6f6 133 {
laserdad 5:ebe305e08430 134 meas_ps ? ob1203.init_ps_rgb() : ob1203.init_rgb();
laserdad 0:e9ae48b7f6f6 135 }
laserdad 0:e9ae48b7f6f6 136 }
laserdad 0:e9ae48b7f6f6 137
laserdad 1:fb6b2b4d5d8a 138 void regDump(uint8_t Addr, uint8_t startByte, uint8_t endByte)
laserdad 1:fb6b2b4d5d8a 139 {
laserdad 1:fb6b2b4d5d8a 140 /*print the values of up to 20 registers--buffer limit, e.g.*/
laserdad 1:fb6b2b4d5d8a 141 char regData[20];
laserdad 1:fb6b2b4d5d8a 142 int numBytes;
laserdad 1:fb6b2b4d5d8a 143 if (endByte>=startByte) {
laserdad 1:fb6b2b4d5d8a 144 numBytes = (endByte-startByte+1) < 20 ? (endByte-startByte+1) : 20;
laserdad 1:fb6b2b4d5d8a 145 } else {
laserdad 1:fb6b2b4d5d8a 146 numBytes=1;
laserdad 1:fb6b2b4d5d8a 147 }
laserdad 1:fb6b2b4d5d8a 148
laserdad 1:fb6b2b4d5d8a 149 regData[0] = startByte;
laserdad 1:fb6b2b4d5d8a 150 i2c.write(Addr,regData,1,true);
laserdad 1:fb6b2b4d5d8a 151 i2c.read(Addr, regData, numBytes);
laserdad 1:fb6b2b4d5d8a 152 for(int n=0; n<numBytes; n++) {
laserdad 1:fb6b2b4d5d8a 153 pc.printf("%02X, %02X \r\n", startByte+n, regData[n]);
laserdad 1:fb6b2b4d5d8a 154 }
laserdad 1:fb6b2b4d5d8a 155 }
laserdad 1:fb6b2b4d5d8a 156
laserdad 0:e9ae48b7f6f6 157
laserdad 0:e9ae48b7f6f6 158 void intEvent(void)
laserdad 0:e9ae48b7f6f6 159 {
laserdad 0:e9ae48b7f6f6 160 intFlagged = 1;
laserdad 0:e9ae48b7f6f6 161 }
laserdad 0:e9ae48b7f6f6 162
laserdad 0:e9ae48b7f6f6 163 int main()
laserdad 0:e9ae48b7f6f6 164 {
laserdad 4:3aee2ca931b8 165 int numInts = 0;
laserdad 4:3aee2ca931b8 166 uint32_t running_avg = 65;
laserdad 3:d3a1fc19bee6 167 char avg_ptr = 0;
laserdad 4:3aee2ca931b8 168 int baseline_ptr = 0;
laserdad 4:3aee2ca931b8 169 uint32_t running_baseline = 850;
laserdad 3:d3a1fc19bee6 170 int first = 1;
laserdad 3:d3a1fc19bee6 171 uint32_t IRavg = 0;
laserdad 3:d3a1fc19bee6 172 uint32_t Ravg = 0;
laserdad 3:d3a1fc19bee6 173 uint32_t IRprev = 0;
laserdad 3:d3a1fc19bee6 174 uint32_t Rprev = 0;
laserdad 3:d3a1fc19bee6 175 uint32_t prevAvg = 0;
laserdad 3:d3a1fc19bee6 176 uint32_t IR_avg_buffer[running_avg];
laserdad 3:d3a1fc19bee6 177 uint32_t R_avg_buffer[running_avg];
laserdad 4:3aee2ca931b8 178 uint32_t IR_baseline_buffer[running_baseline];
laserdad 4:3aee2ca931b8 179 uint32_t R_baseline_buffer[running_baseline];
laserdad 4:3aee2ca931b8 180 uint32_t IRbaseline_prev=0;;
laserdad 4:3aee2ca931b8 181 uint32_t Rbaseline_prev=0;;
laserdad 4:3aee2ca931b8 182 uint32_t IRbaseline=0;
laserdad 4:3aee2ca931b8 183 uint32_t Rbaseline=0;
laserdad 4:3aee2ca931b8 184 uint32_t prevBaseline=0;
laserdad 2:ee175f471ecb 185 i2c.frequency( 400000 );
laserdad 0:e9ae48b7f6f6 186 char valid;
laserdad 4:3aee2ca931b8 187 uint32_t ps_ls_data[7];
laserdad 2:ee175f471ecb 188 char samples2Read = 4; //samples, e.g. 4 samples * 3 bytes = 12 bytes (or 2 SpO2 samples)
laserdad 2:ee175f471ecb 189 char fifoBuffer[samples2Read*3];
laserdad 0:e9ae48b7f6f6 190 uint32_t ppgData[samples2Read];
laserdad 0:e9ae48b7f6f6 191
laserdad 1:fb6b2b4d5d8a 192
laserdad 1:fb6b2b4d5d8a 193 pc.printf("register settings\r\n");
laserdad 1:fb6b2b4d5d8a 194 regDump(OB1203_ADDR,0,19);
laserdad 1:fb6b2b4d5d8a 195 regDump(OB1203_ADDR,20,39);
laserdad 1:fb6b2b4d5d8a 196 regDump(OB1203_ADDR,40,59);
laserdad 1:fb6b2b4d5d8a 197 regDump(OB1203_ADDR,60,77);
laserdad 1:fb6b2b4d5d8a 198
laserdad 1:fb6b2b4d5d8a 199 pc.printf("do initial config\r\n");
laserdad 0:e9ae48b7f6f6 200 defaultConfig(); //rgb ps
laserdad 1:fb6b2b4d5d8a 201
laserdad 1:fb6b2b4d5d8a 202 pc.printf("print new register config\r\n");
laserdad 1:fb6b2b4d5d8a 203 regDump(OB1203_ADDR,0,19);
laserdad 1:fb6b2b4d5d8a 204 regDump(OB1203_ADDR,20,39);
laserdad 1:fb6b2b4d5d8a 205 regDump(OB1203_ADDR,40,59);
laserdad 1:fb6b2b4d5d8a 206 regDump(OB1203_ADDR,60,77);
laserdad 1:fb6b2b4d5d8a 207
laserdad 0:e9ae48b7f6f6 208
laserdad 0:e9ae48b7f6f6 209 intb.fall(&intEvent);
laserdad 3:d3a1fc19bee6 210 t.start();
laserdad 5:ebe305e08430 211
laserdad 0:e9ae48b7f6f6 212 while(1)
laserdad 0:e9ae48b7f6f6 213 {
laserdad 1:fb6b2b4d5d8a 214 if(mode)
laserdad 0:e9ae48b7f6f6 215 {
laserdad 2:ee175f471ecb 216 if(!intb.read())
laserdad 2:ee175f471ecb 217 {
laserdad 4:3aee2ca931b8 218 if(!afull)
laserdad 4:3aee2ca931b8 219 {
laserdad 4:3aee2ca931b8 220 numInts++; //get data every other interrupt if ppg new data interrupt mode
laserdad 4:3aee2ca931b8 221 }
laserdad 4:3aee2ca931b8 222 else
laserdad 4:3aee2ca931b8 223 {
laserdad 4:3aee2ca931b8 224 numInts = samples2Read;
laserdad 4:3aee2ca931b8 225 }
laserdad 2:ee175f471ecb 226 intFlagged = 1;
laserdad 4:3aee2ca931b8 227 if( (numInts < samples2Read) && !afull)
laserdad 4:3aee2ca931b8 228 {
laserdad 4:3aee2ca931b8 229 ob1203.get_status();
laserdad 4:3aee2ca931b8 230 }
laserdad 4:3aee2ca931b8 231 else if(intFlagged && (numInts==samples2Read) )
laserdad 3:d3a1fc19bee6 232 {
laserdad 4:3aee2ca931b8 233 numInts = 0;
laserdad 4:3aee2ca931b8 234 ob1203.getFifoSamples(samples2Read,fifoBuffer);
laserdad 4:3aee2ca931b8 235 // for (int n=0;n<samples2Read*3;n++)
laserdad 4:3aee2ca931b8 236 // {
laserdad 4:3aee2ca931b8 237 // pc.printf("%02X ",fifoBuffer[n]);
laserdad 4:3aee2ca931b8 238 // }
laserdad 4:3aee2ca931b8 239 // pc.printf("\r\n");
laserdad 4:3aee2ca931b8 240 ob1203.parseFifoSamples(samples2Read,fifoBuffer,ppgData);
laserdad 4:3aee2ca931b8 241 // for (int n=0;n<samples2Read;n++)
laserdad 4:3aee2ca931b8 242 // {
laserdad 4:3aee2ca931b8 243 // pc.printf("%d ",ppgData[n]);
laserdad 4:3aee2ca931b8 244 // }
laserdad 4:3aee2ca931b8 245 // pc.printf("\r\n");
laserdad 4:3aee2ca931b8 246 if(first) //populate average and baseline buffers the first time we run
laserdad 3:d3a1fc19bee6 247 {
laserdad 4:3aee2ca931b8 248 for(int n=0;n<running_avg;n++)
laserdad 4:3aee2ca931b8 249 {
laserdad 4:3aee2ca931b8 250 IR_avg_buffer[n] = ppgData[0];
laserdad 4:3aee2ca931b8 251 IRavg += IR_avg_buffer[n];
laserdad 4:3aee2ca931b8 252 if(spo2)
laserdad 4:3aee2ca931b8 253 {
laserdad 4:3aee2ca931b8 254 R_avg_buffer[n] = ppgData[1];
laserdad 4:3aee2ca931b8 255 Ravg += R_avg_buffer[n];
laserdad 4:3aee2ca931b8 256 }
laserdad 4:3aee2ca931b8 257
laserdad 4:3aee2ca931b8 258 }
laserdad 4:3aee2ca931b8 259 for( int n=0;n<running_baseline;n++)
laserdad 4:3aee2ca931b8 260 {
laserdad 4:3aee2ca931b8 261 // IR_baseline_buffer[n] = ppgData[0];
laserdad 4:3aee2ca931b8 262 IR_baseline_buffer[n] = 0;
laserdad 4:3aee2ca931b8 263 if(spo2)
laserdad 4:3aee2ca931b8 264 {
laserdad 4:3aee2ca931b8 265 // R_baseline_buffer[n] = ppgData[1];
laserdad 4:3aee2ca931b8 266 R_baseline_buffer[n] = 0;
laserdad 4:3aee2ca931b8 267 }
laserdad 4:3aee2ca931b8 268 }
laserdad 4:3aee2ca931b8 269 first = 0;
laserdad 4:3aee2ca931b8 270 // IRbaseline = running_baseline*ppgData[0];
laserdad 4:3aee2ca931b8 271 // Rbaseline = running_baseline*ppgData[1];
laserdad 4:3aee2ca931b8 272 }
laserdad 4:3aee2ca931b8 273
laserdad 4:3aee2ca931b8 274 // IRbaseline = running_baseline*ppgData[0];
laserdad 4:3aee2ca931b8 275 for (int n=0;n<samples2Read/2;n++)
laserdad 4:3aee2ca931b8 276 {
laserdad 4:3aee2ca931b8 277 ( avg_ptr+1 == running_avg ) ? avg_ptr = 0 : avg_ptr++;
laserdad 4:3aee2ca931b8 278 ( baseline_ptr+1 == running_baseline) ? baseline_ptr = 0 : baseline_ptr++;
laserdad 4:3aee2ca931b8 279 IRprev = IR_avg_buffer[avg_ptr]; //load the sample you are about to write over
laserdad 4:3aee2ca931b8 280 IR_avg_buffer[avg_ptr] = ppgData[2*n]; //load the new sample in the buffer
laserdad 4:3aee2ca931b8 281 IRavg += (IR_avg_buffer[avg_ptr] - IRprev); //update the average by removing the old sample and adding the new
laserdad 4:3aee2ca931b8 282
laserdad 4:3aee2ca931b8 283 IRbaseline_prev = IR_baseline_buffer[baseline_ptr]; //load the sample you are about to write over
laserdad 4:3aee2ca931b8 284 IR_baseline_buffer[baseline_ptr] = ppgData[2*n]; //load the new sample in the buffer
laserdad 4:3aee2ca931b8 285 IRbaseline += (IR_baseline_buffer[baseline_ptr] - IRbaseline_prev); //update the average by removing the old sample and adding the new
laserdad 4:3aee2ca931b8 286
laserdad 3:d3a1fc19bee6 287 if(spo2)
laserdad 3:d3a1fc19bee6 288 {
laserdad 4:3aee2ca931b8 289 Rprev = R_avg_buffer[avg_ptr];
laserdad 4:3aee2ca931b8 290 R_avg_buffer[avg_ptr] = ppgData[2*n+1];
laserdad 4:3aee2ca931b8 291 Ravg += (R_avg_buffer[avg_ptr] - Rprev);
laserdad 4:3aee2ca931b8 292 // pc.printf("%d, %d, %d\r\n",t.read_us(),ppgData[2*n],ppgData[2*n+1]);
laserdad 4:3aee2ca931b8 293 // pc.printf("%d, %d, %d, %d\r\n",IRavg/running_avg,Ravg/running_avg, IR_avg_buffer[avg_ptr],R_avg_buffer[avg_ptr]);
laserdad 4:3aee2ca931b8 294
laserdad 4:3aee2ca931b8 295 Rbaseline_prev = R_baseline_buffer[baseline_ptr];
laserdad 4:3aee2ca931b8 296 R_baseline_buffer[baseline_ptr] = ppgData[2*n+1];
laserdad 4:3aee2ca931b8 297 Rbaseline += (R_baseline_buffer[baseline_ptr] - Rbaseline_prev);
laserdad 4:3aee2ca931b8 298
laserdad 4:3aee2ca931b8 299
laserdad 4:3aee2ca931b8 300 pc.printf("%d,%d\r\n",IRavg/running_avg,Ravg/running_avg);
laserdad 4:3aee2ca931b8 301 // pc.printf("%d,%d\r\n",IRavg/running_avg-IRbaseline/running_baseline, Ravg/running_avg-Rbaseline/running_baseline);
laserdad 4:3aee2ca931b8 302
laserdad 4:3aee2ca931b8 303 // pc.printf("%d,%d,%d,%d\r\n",Ravg/running_avg,Rbaseline/running_baseline,Rbaseline_prev,Ravg/running_avg-Rbaseline/running_baseline);
laserdad 3:d3a1fc19bee6 304 }
laserdad 4:3aee2ca931b8 305 else
laserdad 4:3aee2ca931b8 306 {
laserdad 4:3aee2ca931b8 307 ( avg_ptr+1 == running_avg ) ? avg_ptr = 0 : avg_ptr++;
laserdad 4:3aee2ca931b8 308 ( baseline_ptr+1 == running_baseline) ? baseline_ptr = 0 : baseline_ptr++;
laserdad 4:3aee2ca931b8 309 IRprev = IR_avg_buffer[avg_ptr];
laserdad 4:3aee2ca931b8 310 IR_avg_buffer[avg_ptr] = ppgData[2*n+1];
laserdad 4:3aee2ca931b8 311 prevAvg = IRavg;
laserdad 4:3aee2ca931b8 312 IRavg += (IR_avg_buffer[avg_ptr] - IRprev);
laserdad 4:3aee2ca931b8 313
laserdad 4:3aee2ca931b8 314 IRbaseline_prev = IR_baseline_buffer[baseline_ptr]; //load the sample you are about to write over
laserdad 4:3aee2ca931b8 315 IR_baseline_buffer[baseline_ptr] = ppgData[2*n]; //load the new sample in the buffer
laserdad 4:3aee2ca931b8 316 prevBaseline = IRbaseline;
laserdad 4:3aee2ca931b8 317 IRbaseline += (IR_baseline_buffer[baseline_ptr] - IRbaseline_prev); //update the average by removing the old sample and adding the new
laserdad 4:3aee2ca931b8 318
laserdad 4:3aee2ca931b8 319 pc.printf("%d\r\n%d\r\n",prevAvg/running_avg-prevBaseline/running_baseline,IRavg/running_avg-IRbaseline/running_baseline);
laserdad 4:3aee2ca931b8 320
laserdad 4:3aee2ca931b8 321 // pc.printf("%d\r\n%d\r\n",ppgData[2*n],ppgData[2*n+1]);
laserdad 4:3aee2ca931b8 322
laserdad 4:3aee2ca931b8 323 }
laserdad 3:d3a1fc19bee6 324 }
laserdad 4:3aee2ca931b8 325 intFlagged = 0;
laserdad 3:d3a1fc19bee6 326 }
laserdad 4:3aee2ca931b8 327 } //end if !intb
laserdad 4:3aee2ca931b8 328 }// end mode
laserdad 0:e9ae48b7f6f6 329 else
laserdad 0:e9ae48b7f6f6 330 {
laserdad 1:fb6b2b4d5d8a 331 wait_ms(sample_delay);
laserdad 5:ebe305e08430 332 if( meas_ps ? ob1203.psIsNew() : ob1203.lsIsNew() )
laserdad 1:fb6b2b4d5d8a 333 {
laserdad 5:ebe305e08430 334 meas_ps ? valid = ob1203.get_ps_ls_data(ps_ls_data) : valid = ob1203.get_ls_data(ps_ls_data);
laserdad 5:ebe305e08430 335 if (meas_temp)
laserdad 5:ebe305e08430 336 {
laserdad 5:ebe305e08430 337 ob1203.setMainConfig();
laserdad 5:ebe305e08430 338 }
laserdad 4:3aee2ca931b8 339 // pc.printf("%d %d %d %d %d %d\r\n",ps_ls_data[0],ps_ls_data[1],ps_ls_data[2],ps_ls_data[3],ps_ls_data[4],ps_ls_data[5]);
laserdad 5:ebe305e08430 340 pc.printf("%d %d %d %d %d %d %d\r\n",ps_ls_data[0],ps_ls_data[1],ps_ls_data[2],ps_ls_data[3],ps_ls_data[4],ps_ls_data[5],ps_ls_data[6]);
laserdad 4:3aee2ca931b8 341
laserdad 1:fb6b2b4d5d8a 342 }
laserdad 2:ee175f471ecb 343 // else
laserdad 2:ee175f471ecb 344 // {
laserdad 2:ee175f471ecb 345 // pc.printf("status = %04X\r\n",ob1203.get_status() );
laserdad 2:ee175f471ecb 346 // }
laserdad 0:e9ae48b7f6f6 347 }
laserdad 1:fb6b2b4d5d8a 348 }//end while
laserdad 1:fb6b2b4d5d8a 349 }//end main