nikita teggi / Mbed 2 deprecated merged_code2_3rd_nov_2017

Changes done in ECG and BT

Dependencies:   SDFileSystem ds3231 eeprom_Nikita mbed testUniGraphic_150217

Fork of merged_code2_20sept_2017_4th_oct_2017 by nikita teggi

bp.cpp@8:adf2ba7e6412, 2017-04-28 (annotated)

Committer:
nidhinvarghese
Date:
Fri Apr 28 10:05:29 2017 +0000
Revision:
8:adf2ba7e6412
Parent:
5:a3ea7c82b7e1
Child:
10:aeff3309002a
New Display code(Nik) updated with New BP code (Nid); Changes in Main.cpp, sdcard.cpp, sdcard.h, bp.cpp, bp.h; Code working without hang. ; BP result screen need modification.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nidhinvarghese 8:adf2ba7e6412 1
nikitateggi 3:9a06c2bed650 2 //BP Optimised Program for Averaging the received value from PPG and ECG & Check for SD card Storage//
nikitateggi 3:9a06c2bed650 3
nikitateggi 3:9a06c2bed650 4
nikitateggi 3:9a06c2bed650 5 /** ECG ADS1291 Test program.
nikitateggi 3:9a06c2bed650 6 ADS1291 is a single channel ECG chip
nikitateggi 3:9a06c2bed650 7 with a 24 bit Sigma-Delta ADC
nikitateggi 3:9a06c2bed650 8 */
nidhinvarghese 8:adf2ba7e6412 9
nidhinvarghese 8:adf2ba7e6412 10 /*
nikitateggi 3:9a06c2bed650 11 #include "mbed.h"
nikitateggi 3:9a06c2bed650 12 #include "MAX30102.h" // BP ADD
nikitateggi 3:9a06c2bed650 13 #include <string.h>
nikitateggi 3:9a06c2bed650 14 #include <stdio.h>
nikitateggi 3:9a06c2bed650 15 #include "ds3231.h"
nikitateggi 3:9a06c2bed650 16 #include "SDFileSystem.h"
nikitateggi 3:9a06c2bed650 17 #include "rtc.h"
nikitateggi 3:9a06c2bed650 18 #include "sdcard.h"
nikitateggi 3:9a06c2bed650 19 #include "ec_bp.h"
nikitateggi 3:9a06c2bed650 20 #include "bp.h"
nikitateggi 3:9a06c2bed650 21 #include "display_modules.h"
nikitateggi 3:9a06c2bed650 22
nikitateggi 3:9a06c2bed650 23
nikitateggi 3:9a06c2bed650 24 Serial bc(USBTX,USBRX);
nikitateggi 3:9a06c2bed650 25 DigitalIn INTR(PTC7);
nikitateggi 3:9a06c2bed650 26
nikitateggi 3:9a06c2bed650 27
nikitateggi 3:9a06c2bed650 28
suhasini 5:a3ea7c82b7e1 29 void bp() {
nikitateggi 3:9a06c2bed650 30
nikitateggi 3:9a06c2bed650 31 //------------------BP ADD------------------------------//{
suhasini 5:a3ea7c82b7e1 32 //int location; // BP ADD
nikitateggi 3:9a06c2bed650 33 int32_t n_red_buffer_length = 1500; //data length
nikitateggi 3:9a06c2bed650 34 uint32_t aun_red_buffer[1500]; //Red LED sensor data, set to 500
nikitateggi 3:9a06c2bed650 35 uint32_t red_value;
nikitateggi 3:9a06c2bed650 36 uint32_t ecg_value;
nikitateggi 3:9a06c2bed650 37 uint8_t uch_dummy;
nikitateggi 3:9a06c2bed650 38 uint32_t ecg_buf[1000];
nikitateggi 3:9a06c2bed650 39 int32_t ecg_buffer_length = 1000;
nikitateggi 3:9a06c2bed650 40 float SBP, DBP, PWV, delta_t;
nikitateggi 3:9a06c2bed650 41 int d = 210;
nikitateggi 3:9a06c2bed650 42
suhasini 5:a3ea7c82b7e1 43 uint32_t un_min, un_max, ecg_min, ecg_max ; //variables to calculate the on-board LED brightness that reflects the heartbeats
suhasini 5:a3ea7c82b7e1 44 //int i, j;
nikitateggi 3:9a06c2bed650 45 float ecg_location, ppg_location;
suhasini 5:a3ea7c82b7e1 46 //int32_t n_brightness;
nikitateggi 3:9a06c2bed650 47
suhasini 5:a3ea7c82b7e1 48 // n_brightness=0;
nikitateggi 3:9a06c2bed650 49 un_min=0x3FFFF;
nikitateggi 3:9a06c2bed650 50 un_max=0;
nikitateggi 3:9a06c2bed650 51 ecg_min = 0xFFFFFF;
nikitateggi 3:9a06c2bed650 52 ecg_max = 0;
nikitateggi 3:9a06c2bed650 53 //---------------- BP ADD-----------------------------//}
nikitateggi 3:9a06c2bed650 54
nikitateggi 3:9a06c2bed650 55
nikitateggi 3:9a06c2bed650 56 //time_t epoch_time;
nikitateggi 3:9a06c2bed650 57 //int fp;
nikitateggi 3:9a06c2bed650 58 int concatenate_value1 = 0;
nikitateggi 3:9a06c2bed650 59 //uint32_t ecg_buf[1500];
nikitateggi 3:9a06c2bed650 60 //int32_t ecg_der[1500];
nikitateggi 3:9a06c2bed650 61 //int buff1[15]= {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
suhasini 5:a3ea7c82b7e1 62 //int32_t sample_sum; // static int32_t avg[1500];
suhasini 5:a3ea7c82b7e1 63 //int32_t count = 0; int32_t fs = 500; int32_t w=0,w1=0;
nikitateggi 3:9a06c2bed650 64
nikitateggi 3:9a06c2bed650 65 unsigned char chk = 1;
nikitateggi 3:9a06c2bed650 66 bc.baud(baud_rate);
nikitateggi 3:9a06c2bed650 67 // mySpi.frequency(freq) ;
nikitateggi 3:9a06c2bed650 68 // mySpi.format(bits, mode) ;
nikitateggi 3:9a06c2bed650 69 freqset();
nikitateggi 3:9a06c2bed650 70 // Ds3231 rtc(PTC11, PTC10); //sda,scl2yy
nikitateggi 3:9a06c2bed650 71
nikitateggi 3:9a06c2bed650 72 //------------------BP ADD---------------------------// {
nikitateggi 3:9a06c2bed650 73 while(bc.readable()==0)
nikitateggi 3:9a06c2bed650 74 {
nikitateggi 3:9a06c2bed650 75 bc.printf("\x1B[2J"); //clear terminal program screen
nikitateggi 3:9a06c2bed650 76 bc.printf("Press any key to start conversion\n\r");
nikitateggi 3:9a06c2bed650 77 wait(1);
nikitateggi 3:9a06c2bed650 78 }
nikitateggi 3:9a06c2bed650 79 wait(5);
nikitateggi 3:9a06c2bed650 80 bc.printf("Start of capture, Remain CALM and Donot MOVE\n");
nikitateggi 3:9a06c2bed650 81 wait(2);
nikitateggi 3:9a06c2bed650 82 //-------------------BP ADD---------------------------//}
nikitateggi 3:9a06c2bed650 83
nikitateggi 3:9a06c2bed650 84 setupfunc();
nikitateggi 3:9a06c2bed650 85 ecgsetupfunc();
nikitateggi 3:9a06c2bed650 86 //--------------- BP ADD------------------------------------//{
nikitateggi 3:9a06c2bed650 87 maxim_max30102_reset(); // PPG reset
nikitateggi 3:9a06c2bed650 88 maxim_max30102_init(); // PPG ADC register Initialise
nikitateggi 3:9a06c2bed650 89 //---------------BP ADD ----------------------------------// }
nikitateggi 3:9a06c2bed650 90
nikitateggi 3:9a06c2bed650 91
nikitateggi 3:9a06c2bed650 92 chk = 1;
nikitateggi 3:9a06c2bed650 93 bc.printf("rawecg......................\n");
nikitateggi 3:9a06c2bed650 94 for(int i=0; i<N_ECG; i++)
nikitateggi 3:9a06c2bed650 95 {
nikitateggi 3:9a06c2bed650 96
nikitateggi 3:9a06c2bed650 97 concatenate_value1=readvalue();
nikitateggi 3:9a06c2bed650 98 ecg_buf[i] = concatenate_value1;
nikitateggi 3:9a06c2bed650 99
nikitateggi 3:9a06c2bed650 100 bc.printf( "%d\n", concatenate_value1);
nikitateggi 3:9a06c2bed650 101 maxim_max30102_read_reg(0,&uch_dummy);
nikitateggi 3:9a06c2bed650 102 while(INTR.read()==1);
nikitateggi 3:9a06c2bed650 103 maxim_max30102_read_fifo((aun_red_buffer+i));
nikitateggi 3:9a06c2bed650 104 //bc.printf( "%d\n", concatenate_value1);
nikitateggi 3:9a06c2bed650 105 // bc.printf("%d\n",aun_red_buffer[i]);
nikitateggi 3:9a06c2bed650 106 //sd_write(concatenate_value); - -- BP ADD commented
nikitateggi 3:9a06c2bed650 107 //printf( "%d\n", concatenate_value); -- BP ADD commented
nikitateggi 3:9a06c2bed650 108 // bc.printf("loop2");
nikitateggi 3:9a06c2bed650 109 }
nikitateggi 3:9a06c2bed650 110
nikitateggi 3:9a06c2bed650 111 for (int w=1000; w < n_red_buffer_length; w++) // for reading extra 500 PPG samples.
nikitateggi 3:9a06c2bed650 112 {
nikitateggi 3:9a06c2bed650 113 //bc.printf("loop2");
nikitateggi 3:9a06c2bed650 114 while(INTR.read()==1);
nikitateggi 3:9a06c2bed650 115 maxim_max30102_read_fifo((aun_red_buffer+w));
nikitateggi 3:9a06c2bed650 116 }
nikitateggi 3:9a06c2bed650 117
nikitateggi 3:9a06c2bed650 118
nikitateggi 3:9a06c2bed650 119 //sd_close(); -- BP ADD commented
nikitateggi 3:9a06c2bed650 120
nikitateggi 3:9a06c2bed650 121 int32_t ecg_n_denom;
nikitateggi 3:9a06c2bed650 122
nikitateggi 3:9a06c2bed650 123 // 4 pt Moving Average ECG
nikitateggi 3:9a06c2bed650 124 bc.printf("PRINTING ECG 4 POINT IN DECIMAL........\n");
nikitateggi 3:9a06c2bed650 125 for(int y=0; y<996; y++){
nikitateggi 3:9a06c2bed650 126 ecg_n_denom= ( ecg_buf[y]+ ecg_buf[y+1]+ ecg_buf[y+2]+ ecg_buf[y+3]);
nikitateggi 3:9a06c2bed650 127 ecg_buf[y]= ecg_n_denom/(int32_t)4;
nikitateggi 3:9a06c2bed650 128 }
nikitateggi 3:9a06c2bed650 129 for( int l= 0; l<1000; l++){
nikitateggi 3:9a06c2bed650 130 bc.printf("%d\n",ecg_buf[l]); //PRINTING ecg AFTER AVERAGING
nikitateggi 3:9a06c2bed650 131 }
nikitateggi 3:9a06c2bed650 132 bc.printf("PRINTING PPG IN DECIMAL (after averaging)........\n");
nikitateggi 3:9a06c2bed650 133 int32_t ppg_n_denom;
nikitateggi 3:9a06c2bed650 134 // 4 pt Moving Average PPG
nikitateggi 3:9a06c2bed650 135 for(int f=0; f<1496; f++){
nikitateggi 3:9a06c2bed650 136 ppg_n_denom= ( aun_red_buffer[f]+aun_red_buffer[f+1]+ aun_red_buffer[f+2]+ aun_red_buffer[f+3]);
nikitateggi 3:9a06c2bed650 137 aun_red_buffer[f]= ppg_n_denom/(int32_t)4;
nikitateggi 3:9a06c2bed650 138 }
nikitateggi 3:9a06c2bed650 139 for( int b = 0; b<1500; b++){
nikitateggi 3:9a06c2bed650 140 bc.printf("%d\n",aun_red_buffer[b]);
nikitateggi 3:9a06c2bed650 141 }
nikitateggi 3:9a06c2bed650 142
nikitateggi 3:9a06c2bed650 143
nikitateggi 3:9a06c2bed650 144 for(int f=0; f<ecg_buffer_length; f++)
nikitateggi 3:9a06c2bed650 145 {
nikitateggi 3:9a06c2bed650 146 if(ecg_min > ecg_buf[f])
nikitateggi 3:9a06c2bed650 147 ecg_min = ecg_buf[f]; //update signal min
nikitateggi 3:9a06c2bed650 148 if(ecg_max < ecg_buf[f])
nikitateggi 3:9a06c2bed650 149 {
nikitateggi 3:9a06c2bed650 150 ecg_max=ecg_buf[f]; //update signal max
nikitateggi 3:9a06c2bed650 151 ecg_location = f+1;
nikitateggi 3:9a06c2bed650 152 }
nikitateggi 3:9a06c2bed650 153 }
nikitateggi 3:9a06c2bed650 154 bc.printf( "ecg_location = %f\n", ecg_location);
nikitateggi 3:9a06c2bed650 155
nikitateggi 3:9a06c2bed650 156 for(int g = ecg_location; g < (ecg_location+400); g++) // Peak detect changed to 400 samples from 500 samples
nikitateggi 3:9a06c2bed650 157 {
nikitateggi 3:9a06c2bed650 158 if(un_min>aun_red_buffer[g])
nikitateggi 3:9a06c2bed650 159 un_min=aun_red_buffer[g]; //update signal min
nikitateggi 3:9a06c2bed650 160 if(un_max<aun_red_buffer[g])
nikitateggi 3:9a06c2bed650 161 {
nikitateggi 3:9a06c2bed650 162 un_max=aun_red_buffer[g]; //update signal max
nikitateggi 3:9a06c2bed650 163 ppg_location = g+1;
nikitateggi 3:9a06c2bed650 164 }
nikitateggi 3:9a06c2bed650 165 }
nikitateggi 3:9a06c2bed650 166 bc.printf( "ppg_location = %f\n", ppg_location);
nikitateggi 3:9a06c2bed650 167
nikitateggi 3:9a06c2bed650 168 delta_t = (2*(ppg_location - ecg_location))/1000;
nikitateggi 3:9a06c2bed650 169 bc.printf( "delta_t = %f\n", delta_t);
nikitateggi 3:9a06c2bed650 170
nikitateggi 3:9a06c2bed650 171 PWV = d/delta_t;
nikitateggi 3:9a06c2bed650 172 bc.printf( "PWV = %f\n", PWV);
nikitateggi 3:9a06c2bed650 173
nikitateggi 3:9a06c2bed650 174 SBP = 0.0508955*PWV+62.559;
nikitateggi 3:9a06c2bed650 175 DBP = 0.0494*PWV + 17.480;
nikitateggi 3:9a06c2bed650 176
nikitateggi 3:9a06c2bed650 177
nikitateggi 3:9a06c2bed650 178 bc.printf( "SBP = %f\n", SBP);
nikitateggi 3:9a06c2bed650 179 bc.printf( "DBP = %f\n", DBP);
nikitateggi 3:9a06c2bed650 180
nikitateggi 3:9a06c2bed650 181 screen_bp1(SBP,DBP);
nidhinvarghese 8:adf2ba7e6412 182 */
nikitateggi 3:9a06c2bed650 183
nikitateggi 3:9a06c2bed650 184 //-----------------WRITE ECG &PPG
suhasini 5:a3ea7c82b7e1 185 /*
nikitateggi 3:9a06c2bed650 186 sd_open_BPfile(1);
nikitateggi 3:9a06c2bed650 187 for (int w=0; w < 1000; w++)
nikitateggi 3:9a06c2bed650 188 {
nikitateggi 3:9a06c2bed650 189 ecg_value = ecg_buf[w];
nikitateggi 3:9a06c2bed650 190 sd_write(ecg_value);
nikitateggi 3:9a06c2bed650 191 }
nikitateggi 3:9a06c2bed650 192
nikitateggi 3:9a06c2bed650 193
nikitateggi 3:9a06c2bed650 194
nikitateggi 3:9a06c2bed650 195 for (int w=0; w < n_red_buffer_length; w++)
nikitateggi 3:9a06c2bed650 196 {
nikitateggi 3:9a06c2bed650 197 red_value = aun_red_buffer[w];
nikitateggi 3:9a06c2bed650 198 sd_write(red_value);
nikitateggi 3:9a06c2bed650 199 }
suhasini 5:a3ea7c82b7e1 200 sd_close();*/
nikitateggi 3:9a06c2bed650 201
nikitateggi 3:9a06c2bed650 202 //----------- FINISHED WRITING ECG & PPG TO SD CARD
nikitateggi 3:9a06c2bed650 203
nikitateggi 3:9a06c2bed650 204
nikitateggi 3:9a06c2bed650 205
nikitateggi 3:9a06c2bed650 206
nidhinvarghese 8:adf2ba7e6412 207 //} // End of main function
nidhinvarghese 8:adf2ba7e6412 208
nidhinvarghese 8:adf2ba7e6412 209
nidhinvarghese 8:adf2ba7e6412 210 //-----------------------------------------------NEW BP code starts--------------------------------///
nidhinvarghese 8:adf2ba7e6412 211
nidhinvarghese 8:adf2ba7e6412 212 #include "mbed.h"
nidhinvarghese 8:adf2ba7e6412 213 #include "MAX30102.h" // BP ADD
nidhinvarghese 8:adf2ba7e6412 214 #include <string.h>
nidhinvarghese 8:adf2ba7e6412 215 #include <stdio.h>
nidhinvarghese 8:adf2ba7e6412 216 //#include <iostream>
nidhinvarghese 8:adf2ba7e6412 217 #include "ds3231.h"
nidhinvarghese 8:adf2ba7e6412 218 #include "SDFileSystem.h"
nidhinvarghese 8:adf2ba7e6412 219 #include "rtc.h"
nidhinvarghese 8:adf2ba7e6412 220 #include "sdcard.h"
nidhinvarghese 8:adf2ba7e6412 221 #include "ec_bp.h"
nidhinvarghese 8:adf2ba7e6412 222 #include "bp.h"
nidhinvarghese 8:adf2ba7e6412 223 #include "display_modules.h"
nidhinvarghese 8:adf2ba7e6412 224
nidhinvarghese 8:adf2ba7e6412 225 using namespace std;
nidhinvarghese 8:adf2ba7e6412 226
nidhinvarghese 8:adf2ba7e6412 227 Serial bc(USBTX,USBRX);
nidhinvarghese 8:adf2ba7e6412 228 DigitalIn INTR(PTC7);
nidhinvarghese 8:adf2ba7e6412 229
nidhinvarghese 8:adf2ba7e6412 230 Timer t;
nidhinvarghese 8:adf2ba7e6412 231
nidhinvarghese 8:adf2ba7e6412 232 //FILE *ecg;
nidhinvarghese 8:adf2ba7e6412 233 //FILE *ppg;
nidhinvarghese 8:adf2ba7e6412 234
nidhinvarghese 8:adf2ba7e6412 235 void bp(int pid) {
nidhinvarghese 8:adf2ba7e6412 236 uint8_t uch_dummy;
nidhinvarghese 8:adf2ba7e6412 237 uint32_t ppgdata;
nidhinvarghese 8:adf2ba7e6412 238
nidhinvarghese 8:adf2ba7e6412 239 //int dummyconcat = 700000;
nidhinvarghese 8:adf2ba7e6412 240 int concatenate_value2 = 0;
nidhinvarghese 8:adf2ba7e6412 241 unsigned char chk = 1;
nidhinvarghese 8:adf2ba7e6412 242
nidhinvarghese 8:adf2ba7e6412 243 int drum11[64];
nidhinvarghese 8:adf2ba7e6412 244 uint32_t drum21[64];
nidhinvarghese 8:adf2ba7e6412 245
nidhinvarghese 8:adf2ba7e6412 246 // Variables for file operations
nidhinvarghese 8:adf2ba7e6412 247 // uint32_t amax=0;
nidhinvarghese 8:adf2ba7e6412 248 //uint32_t bmax = 0;
nidhinvarghese 8:adf2ba7e6412 249 //uint32_t a;
nidhinvarghese 8:adf2ba7e6412 250 //uint32_t b;
nidhinvarghese 8:adf2ba7e6412 251
nidhinvarghese 8:adf2ba7e6412 252 //int aloc = 0;
nidhinvarghese 8:adf2ba7e6412 253 //int bloc = 0;
nidhinvarghese 8:adf2ba7e6412 254 //int samples = 0;
nidhinvarghese 8:adf2ba7e6412 255
nidhinvarghese 8:adf2ba7e6412 256 bc.baud(baud_rate);
nidhinvarghese 8:adf2ba7e6412 257
nidhinvarghese 8:adf2ba7e6412 258 freqset(); // setting the frequency
nidhinvarghese 8:adf2ba7e6412 259 setupfunc();
nidhinvarghese 8:adf2ba7e6412 260 ecgsetupfunc();
nidhinvarghese 8:adf2ba7e6412 261
nidhinvarghese 8:adf2ba7e6412 262 maxim_max30102_reset(); // PPG reset
nidhinvarghese 8:adf2ba7e6412 263 wait_ms(20);
nidhinvarghese 8:adf2ba7e6412 264 maxim_max30102_init();
nidhinvarghese 8:adf2ba7e6412 265
nidhinvarghese 8:adf2ba7e6412 266 chk = 1;
nidhinvarghese 8:adf2ba7e6412 267
nidhinvarghese 8:adf2ba7e6412 268 wait(2);
nidhinvarghese 8:adf2ba7e6412 269 //bc.printf("BP start\n");
nidhinvarghese 8:adf2ba7e6412 270
nidhinvarghese 8:adf2ba7e6412 271 for(int i=0; i<500; i++)
nidhinvarghese 8:adf2ba7e6412 272 {
nidhinvarghese 8:adf2ba7e6412 273
nidhinvarghese 8:adf2ba7e6412 274 concatenate_value2= readvalue();
nidhinvarghese 8:adf2ba7e6412 275
nidhinvarghese 8:adf2ba7e6412 276 maxim_max30102_read_reg(0,&uch_dummy);
nidhinvarghese 8:adf2ba7e6412 277 while(INTR.read()==1);
nidhinvarghese 8:adf2ba7e6412 278 maxim_max30102_read_fifo(&ppgdata);
nidhinvarghese 8:adf2ba7e6412 279
nidhinvarghese 8:adf2ba7e6412 280 }
nidhinvarghese 8:adf2ba7e6412 281
nidhinvarghese 8:adf2ba7e6412 282
nidhinvarghese 8:adf2ba7e6412 283 sd_open_BP_ECGfile(pid) ; // sd_open_BP_ECGfile(123) draft file for testing
nidhinvarghese 8:adf2ba7e6412 284 sd_open_BP_PPGfile(pid) ; // sd_open_BP_PPGfile(123) draft file for testing
nidhinvarghese 8:adf2ba7e6412 285
nidhinvarghese 8:adf2ba7e6412 286 FILE *ecg = NULL;
nidhinvarghese 8:adf2ba7e6412 287 FILE *ppg = NULL;
nidhinvarghese 8:adf2ba7e6412 288 int *drum_ecg = NULL; // pointers to ecg buffer
nidhinvarghese 8:adf2ba7e6412 289 uint32_t *drum_ppg = NULL; // pointer to ppg buffer
nidhinvarghese 8:adf2ba7e6412 290
nidhinvarghese 8:adf2ba7e6412 291 drum_ecg = drum11;
nidhinvarghese 8:adf2ba7e6412 292 drum_ppg = drum21;
nidhinvarghese 8:adf2ba7e6412 293
nidhinvarghese 8:adf2ba7e6412 294 for(int j =0 ; j<16; j++) // changed to 16 from 8
nidhinvarghese 8:adf2ba7e6412 295 {
nidhinvarghese 8:adf2ba7e6412 296 for(int i=0; i<64; i++)
nidhinvarghese 8:adf2ba7e6412 297 {
nidhinvarghese 8:adf2ba7e6412 298 concatenate_value2 = readvalue();
nidhinvarghese 8:adf2ba7e6412 299 drum11[i]=concatenate_value2; //drum11[i]=concatenate_value2; drum11[i]=dummyconcat;
nidhinvarghese 8:adf2ba7e6412 300
nidhinvarghese 8:adf2ba7e6412 301 maxim_max30102_read_reg(0,&uch_dummy);
nidhinvarghese 8:adf2ba7e6412 302 while(INTR.read()==1);
nidhinvarghese 8:adf2ba7e6412 303 maxim_max30102_read_fifo(&ppgdata);
nidhinvarghese 8:adf2ba7e6412 304 drum21[i]=ppgdata;
nidhinvarghese 8:adf2ba7e6412 305 }
nidhinvarghese 8:adf2ba7e6412 306
nidhinvarghese 8:adf2ba7e6412 307 ecg = sd_BP_ecgwrite(drum_ecg); //
nidhinvarghese 8:adf2ba7e6412 308 ppg = sd_BP_ppgwrite(drum_ppg);
nidhinvarghese 8:adf2ba7e6412 309
nidhinvarghese 8:adf2ba7e6412 310
nidhinvarghese 8:adf2ba7e6412 311 }
nidhinvarghese 8:adf2ba7e6412 312
nidhinvarghese 8:adf2ba7e6412 313 for(int j =0 ; j<10; j++) // changed to 16 from 8
nidhinvarghese 8:adf2ba7e6412 314 {
nidhinvarghese 8:adf2ba7e6412 315 for(int i=0; i<64; i++)
nidhinvarghese 8:adf2ba7e6412 316 {
nidhinvarghese 8:adf2ba7e6412 317 maxim_max30102_read_reg(0,&uch_dummy);
nidhinvarghese 8:adf2ba7e6412 318 while(INTR.read()==1);
nidhinvarghese 8:adf2ba7e6412 319 maxim_max30102_read_fifo(&ppgdata);
nidhinvarghese 8:adf2ba7e6412 320 drum21[i]=ppgdata;
nidhinvarghese 8:adf2ba7e6412 321 }
nidhinvarghese 8:adf2ba7e6412 322
nidhinvarghese 8:adf2ba7e6412 323 ppg = sd_BP_ppgwrite (drum_ppg);
nidhinvarghese 8:adf2ba7e6412 324
nidhinvarghese 8:adf2ba7e6412 325 }
nidhinvarghese 8:adf2ba7e6412 326 fclose(ecg);
nidhinvarghese 8:adf2ba7e6412 327 fclose(ppg);
nidhinvarghese 8:adf2ba7e6412 328
nidhinvarghese 8:adf2ba7e6412 329 maxim_max30102_reset();
nidhinvarghese 8:adf2ba7e6412 330
nidhinvarghese 8:adf2ba7e6412 331 //-----Reading from file starts //
nidhinvarghese 8:adf2ba7e6412 332
nidhinvarghese 8:adf2ba7e6412 333 //std::ifstream ec1("/sd/123_BP_ECG.csv");
nidhinvarghese 8:adf2ba7e6412 334 //std::ifstream pp1("/sd/123_BP_PPG.csv");
nidhinvarghese 8:adf2ba7e6412 335
nidhinvarghese 8:adf2ba7e6412 336 int eloc = 0;
nidhinvarghese 8:adf2ba7e6412 337 int ploc = 0;
nidhinvarghese 8:adf2ba7e6412 338
nidhinvarghese 8:adf2ba7e6412 339
nidhinvarghese 8:adf2ba7e6412 340 eloc = sd_BP_ECGMAX(pid); // eloc = sd_BP_ECGMAX(123);
nidhinvarghese 8:adf2ba7e6412 341 ploc = sd_BP_PPGMAX(pid); // ploc = sd_BP_PPGMAX(123);
nidhinvarghese 8:adf2ba7e6412 342
nidhinvarghese 8:adf2ba7e6412 343 //bc.printf("The ECG max is at : %d", eloc);
nidhinvarghese 8:adf2ba7e6412 344 //bc.printf("The PPG Max is at : %d", ploc);
nidhinvarghese 8:adf2ba7e6412 345
nidhinvarghese 8:adf2ba7e6412 346 float PWV = 0;
nidhinvarghese 8:adf2ba7e6412 347 int d = 210000;
nidhinvarghese 8:adf2ba7e6412 348 int delta_t = 0;
nidhinvarghese 8:adf2ba7e6412 349 float SBP = 0;
nidhinvarghese 8:adf2ba7e6412 350 float DBP = 0;
nidhinvarghese 8:adf2ba7e6412 351
nidhinvarghese 8:adf2ba7e6412 352 delta_t = (2*(ploc - eloc));
nidhinvarghese 8:adf2ba7e6412 353 PWV = d/delta_t;
nidhinvarghese 8:adf2ba7e6412 354
nidhinvarghese 8:adf2ba7e6412 355 SBP = 0.0508955*PWV+62.559;
nidhinvarghese 8:adf2ba7e6412 356 DBP = (0.0494*PWV + 17.480)+10;
nidhinvarghese 8:adf2ba7e6412 357
nidhinvarghese 8:adf2ba7e6412 358 screen_bp1(SBP,DBP);
nidhinvarghese 8:adf2ba7e6412 359
nidhinvarghese 8:adf2ba7e6412 360 }