MH / Mbed OS MAX30003WING_monitorhealth_customboard_batterycode

battery_code

Dependencies:   MAX30003 max32630fthr DS1307

main.cpp@23:288c5d1babd1, 2021-08-03 (annotated)

Committer:
kidecha_rahul
Date:
Tue Aug 03 19:39:42 2021 +0000
Revision:
23:288c5d1babd1
Parent:
22:07eec382c267
Child:
24:98332ec40aff
832021;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kidecha_rahul 23:288c5d1babd1 1
parthsagar2010 8:6b9359f81cc0 2 #include "MAX30003.h"
coreyharris 0:38c49bc37c7c 3 #include "mbed.h"
coreyharris 0:38c49bc37c7c 4 #include "max32630fthr.h"
kidecha_rahul 23:288c5d1babd1 5 #include "ds1307.h"
parthsagar2010 11:300afaf2696b 6 //#include <BufferedSerial.h>
kidecha_rahul 23:288c5d1babd1 7 #include <string>
parthsagar2010 10:54aa50490b15 8 //#include <Serial.h>
kidecha_rahul 23:288c5d1babd1 9
kidecha_rahul 18:101042d225ef 10 #define TARGET_TX_PIN P3_1
kidecha_rahul 18:101042d225ef 11 #define TARGET_RX_PIN P3_0
kidecha_rahul 23:288c5d1babd1 12
kidecha_rahul 23:288c5d1babd1 13
kidecha_rahul 22:07eec382c267 14 //Timer timer_fast;
kidecha_rahul 23:288c5d1babd1 15 Timer t;
coreyharris 0:38c49bc37c7c 16 MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
kidecha_rahul 23:288c5d1babd1 17
kidecha_rahul 23:288c5d1babd1 18 void task_fast(void);
kidecha_rahul 18:101042d225ef 19 //DigitalOut ledA(LED2);
kidecha_rahul 23:288c5d1babd1 20
kidecha_rahul 23:288c5d1babd1 21 DigitalOut S0(P4_0);
kidecha_rahul 23:288c5d1babd1 22 DigitalOut S1(P5_6);
kidecha_rahul 23:288c5d1babd1 23 //DigitalOut S2(P7_2);
kidecha_rahul 23:288c5d1babd1 24 //DigitalOut S3(P7_2);
kidecha_rahul 19:7a084dc2f09d 25
kidecha_rahul 22:07eec382c267 26 //channel feedback
kidecha_rahul 23:288c5d1babd1 27 DigitalIn A(P6_0); //P17
kidecha_rahul 23:288c5d1babd1 28 DigitalIn B(P3_5); //P18
kidecha_rahul 23:288c5d1babd1 29 DigitalIn C(P3_4); //P19
kidecha_rahul 21:193a10530741 30
kidecha_rahul 23:288c5d1babd1 31
coreyharris 0:38c49bc37c7c 32 void ecg_config(MAX30003 &ecgAFE);
parthsagar2010 11:300afaf2696b 33 //BufferedSerial pc(P3_1,P3_0); // Use USB debug probe for serial link static Unbuffered
parthsagar2010 15:0356e9454a60 34 static BufferedSerial pc(TARGET_TX_PIN, TARGET_RX_PIN, 230400); // 230400 works well
kidecha_rahul 23:288c5d1babd1 35
parthsagar2010 10:54aa50490b15 36 //Serial uart_1(USBTX, USBRX); // Use USB debug probe for serial link static Unbuffered
parthsagar2010 10:54aa50490b15 37 //
parthsagar2010 10:54aa50490b15 38 //Serial pc(P3_1,P3_0);
coreyharris 0:38c49bc37c7c 39 volatile bool ecgFIFOIntFlag = 0;
kidecha_rahul 23:288c5d1babd1 40 volatile bool timerflag = 0;
kidecha_rahul 23:288c5d1babd1 41
parthsagar2010 11:300afaf2696b 42 FileHandle *mbed::mbed_override_console(int fd)
parthsagar2010 11:300afaf2696b 43 {
parthsagar2010 11:300afaf2696b 44 return &pc;
parthsagar2010 11:300afaf2696b 45 }
kidecha_rahul 23:288c5d1babd1 46
parthsagar2010 8:6b9359f81cc0 47 void ecgFIFO_callback_1() { // Triggered when the ECG FIFO is about to be full
coreyharris 0:38c49bc37c7c 48
coreyharris 0:38c49bc37c7c 49 ecgFIFOIntFlag = 1;
coreyharris 0:38c49bc37c7c 50 }
kidecha_rahul 23:288c5d1babd1 51
kidecha_rahul 23:288c5d1babd1 52 time_t asUnixTime(int year, int mon, int mday, int hour, int min, int sec) {
kidecha_rahul 23:288c5d1babd1 53 struct tm t;
kidecha_rahul 23:288c5d1babd1 54 t.tm_year = year - 1900;
kidecha_rahul 23:288c5d1babd1 55 t.tm_mon = mon - 1; // convert to 0 based month
kidecha_rahul 23:288c5d1babd1 56 t.tm_mday = mday;
kidecha_rahul 23:288c5d1babd1 57 t.tm_hour = hour;
kidecha_rahul 23:288c5d1babd1 58 t.tm_min = min;
kidecha_rahul 23:288c5d1babd1 59 t.tm_sec = sec;
kidecha_rahul 23:288c5d1babd1 60 t.tm_isdst = -1; // Is Daylight saving time on? 1 = yes, 0 = no, -1 = unknown
kidecha_rahul 23:288c5d1babd1 61
kidecha_rahul 23:288c5d1babd1 62 return mktime(&t); // returns seconds elapsed since January 1, 1970 (begin of the Epoch)
kidecha_rahul 23:288c5d1babd1 63 }
parthsagar2010 11:300afaf2696b 64 int main(void)
coreyharris 3:420d5efbd967 65 {
kidecha_rahul 23:288c5d1babd1 66 uint16_t tic=0;
kidecha_rahul 23:288c5d1babd1 67
kidecha_rahul 23:288c5d1babd1 68 /* S1S0
kidecha_rahul 23:288c5d1babd1 69 00 - C0
kidecha_rahul 23:288c5d1babd1 70 01 - C1
kidecha_rahul 23:288c5d1babd1 71 10 - C2
kidecha_rahul 23:288c5d1babd1 72 11 - C3 */
kidecha_rahul 23:288c5d1babd1 73
kidecha_rahul 23:288c5d1babd1 74
kidecha_rahul 23:288c5d1babd1 75 S0=0; //C0
kidecha_rahul 23:288c5d1babd1 76 S1=0;
kidecha_rahul 23:288c5d1babd1 77 // S2=0;
kidecha_rahul 23:288c5d1babd1 78 // S3=0;
kidecha_rahul 19:7a084dc2f09d 79
kidecha_rahul 23:288c5d1babd1 80
kidecha_rahul 23:288c5d1babd1 81
parthsagar2010 11:300afaf2696b 82 // Constants
coreyharris 4:06e258ff0b97 83 const int EINT_STATUS_MASK = 1 << 23;
coreyharris 6:86ac850c718d 84 const int FIFO_OVF_MASK = 0x7;
coreyharris 6:86ac850c718d 85 const int FIFO_VALID_SAMPLE_MASK = 0x0;
coreyharris 6:86ac850c718d 86 const int FIFO_FAST_SAMPLE_MASK = 0x1;
coreyharris 6:86ac850c718d 87 const int ETAG_BITS_MASK = 0x7;
kidecha_rahul 17:f0008ebb1040 88
kidecha_rahul 23:288c5d1babd1 89 // timer_fast.start();
parthsagar2010 15:0356e9454a60 90 DigitalOut rLed(LED2, LED_ON);
parthsagar2010 10:54aa50490b15 91 // pc.baud(9600);
coreyharris 3:420d5efbd967 92
parthsagar2010 11:300afaf2696b 93 //pc.set_baud(115200); // Baud rate = 115200
parthsagar2010 11:300afaf2696b 94 //pc.set_format(
parthsagar2010 11:300afaf2696b 95 // /* bits */ 8,
parthsagar2010 11:300afaf2696b 96 // /* parity */ BufferedSerial::None,
parthsagar2010 11:300afaf2696b 97 // /* stop bit */ 1 //1
parthsagar2010 11:300afaf2696b 98 //);
parthsagar2010 10:54aa50490b15 99 //uart_1.baud(115200);
kidecha_rahul 23:288c5d1babd1 100
kidecha_rahul 23:288c5d1babd1 101 //--------------------------------- ECG Initialization ---------------------------------------------//
coreyharris 1:86843c27cc81 102 InterruptIn ecgFIFO_int(P5_4); // Config P5_4 as int. in for the
parthsagar2010 8:6b9359f81cc0 103 ecgFIFO_int.fall(&ecgFIFO_callback_1); // ecg FIFO interrupt at falling edge
coreyharris 0:38c49bc37c7c 104
coreyharris 1:86843c27cc81 105 SPI spiBus(SPI2_MOSI, SPI2_MISO, SPI2_SCK); // SPI bus, P5_1 = MOSI,
coreyharris 1:86843c27cc81 106 // P5_2 = MISO, P5_0 = SCK
parthsagar2010 10:54aa50490b15 107
coreyharris 4:06e258ff0b97 108 MAX30003 ecgAFE(spiBus, P5_3); // New MAX30003 on spiBus, CS = P5_3
parthsagar2010 8:6b9359f81cc0 109
coreyharris 4:06e258ff0b97 110 ecg_config(ecgAFE); // Config ECG
parthsagar2010 12:10b49ad3c492 111
coreyharris 0:38c49bc37c7c 112
coreyharris 4:06e258ff0b97 113 ecgAFE.writeRegister( MAX30003::SYNCH , 0);
coreyharris 0:38c49bc37c7c 114
kidecha_rahul 23:288c5d1babd1 115 //-------------------------------------------------------------------------------------------------//
kidecha_rahul 23:288c5d1babd1 116
coreyharris 4:06e258ff0b97 117 uint32_t ecgFIFO, readECGSamples, idx, ETAG[32], status;
coreyharris 1:86843c27cc81 118 int16_t ecgSample[32];
parthsagar2010 9:24ecf16eab0f 119 //bool timerflag = false;
kidecha_rahul 23:288c5d1babd1 120 int16_t ecgSample_1sec[256];
kidecha_rahul 23:288c5d1babd1 121 // uint8_t ecg_1 = 0;
kidecha_rahul 23:288c5d1babd1 122 // uint8_t ecg_2 = 0;
parthsagar2010 10:54aa50490b15 123 uint16_t onesec_counter = 0;
parthsagar2010 10:54aa50490b15 124 uint16_t onesec_counter_temp = 0;
parthsagar2010 10:54aa50490b15 125
kidecha_rahul 22:07eec382c267 126 // int16_t sample = 300;
kidecha_rahul 23:288c5d1babd1 127 // uint8_t final[10];
parthsagar2010 12:10b49ad3c492 128
parthsagar2010 10:54aa50490b15 129 uint16_t checksum_ = 0;
parthsagar2010 10:54aa50490b15 130 uint16_t mod_checksum = 0;
parthsagar2010 10:54aa50490b15 131
parthsagar2010 10:54aa50490b15 132 uint8_t p_1 = 0;
parthsagar2010 10:54aa50490b15 133 uint8_t p_2 = 0;
parthsagar2010 10:54aa50490b15 134 uint8_t p_3 = 0;
parthsagar2010 10:54aa50490b15 135 uint8_t p_4 = 0;
kidecha_rahul 18:101042d225ef 136 // uint8_t channel_num= 1;
kidecha_rahul 20:2e999e6568c1 137 uint8_t channel_num[1]= {0};
parthsagar2010 10:54aa50490b15 138 uint8_t data_len_1 = 0;
parthsagar2010 10:54aa50490b15 139 uint8_t data_len_2 = 0;
parthsagar2010 12:10b49ad3c492 140 uint32_t packet_1 = 0;
parthsagar2010 10:54aa50490b15 141 uint8_t cksm_1 = 0;
parthsagar2010 10:54aa50490b15 142 uint8_t cksm_2 = 0;
parthsagar2010 10:54aa50490b15 143 uint8_t header_device_id[3] = {0,0,210};
kidecha_rahul 23:288c5d1babd1 144 //uint8_t header_device_id[3] = {0,0,1}; //for rahul
parthsagar2010 10:54aa50490b15 145 uint8_t header_packet_type[2] = {0,2};
parthsagar2010 10:54aa50490b15 146
parthsagar2010 10:54aa50490b15 147 uint8_t ending[5] = {'@','#','%','!','7'};
parthsagar2010 10:54aa50490b15 148
parthsagar2010 15:0356e9454a60 149 bool flip = true;
kidecha_rahul 23:288c5d1babd1 150 int sampleps = 0;
parthsagar2010 15:0356e9454a60 151
kidecha_rahul 23:288c5d1babd1 152 char buf[20];
parthsagar2010 15:0356e9454a60 153 // pc.write("Welcome",8*sizeof(char));
parthsagar2010 15:0356e9454a60 154 // printf("In the main loop"); //printf("In the main loop");
kidecha_rahul 23:288c5d1babd1 155 bool flag_first = false;
kidecha_rahul 23:288c5d1babd1 156 bool timestamp_reader = false;
kidecha_rahul 17:f0008ebb1040 157
kidecha_rahul 17:f0008ebb1040 158
kidecha_rahul 23:288c5d1babd1 159 //---------------------------------software RTC Start---------------------------------------------//
kidecha_rahul 23:288c5d1babd1 160 do
kidecha_rahul 23:288c5d1babd1 161 {
kidecha_rahul 23:288c5d1babd1 162 if (pc.readable())
kidecha_rahul 23:288c5d1babd1 163 {
kidecha_rahul 23:288c5d1babd1 164 scanf("%s",buf);
kidecha_rahul 23:288c5d1babd1 165 //printf("The entered string is %s : \n ",buf);*/
kidecha_rahul 23:288c5d1babd1 166 // buf[20] = 1621297647;
kidecha_rahul 23:288c5d1babd1 167 packet_1 = atoi(buf);
kidecha_rahul 23:288c5d1babd1 168 set_time(packet_1);
parthsagar2010 12:10b49ad3c492 169
kidecha_rahul 23:288c5d1babd1 170 if ((packet_1 % 60) == 0)
kidecha_rahul 23:288c5d1babd1 171 {
kidecha_rahul 23:288c5d1babd1 172 for (int u = 0;u<3;u++)
kidecha_rahul 23:288c5d1babd1 173 {
kidecha_rahul 23:288c5d1babd1 174 if (pc.readable())
kidecha_rahul 23:288c5d1babd1 175 {
kidecha_rahul 23:288c5d1babd1 176 scanf("%s",buf);
kidecha_rahul 23:288c5d1babd1 177 printf("Entered the minute string %s : \n ",buf);
kidecha_rahul 23:288c5d1babd1 178
kidecha_rahul 23:288c5d1babd1 179 packet_1 = atoi(buf);
kidecha_rahul 23:288c5d1babd1 180 set_time(packet_1);
kidecha_rahul 23:288c5d1babd1 181 }
kidecha_rahul 23:288c5d1babd1 182 }
kidecha_rahul 23:288c5d1babd1 183 timestamp_reader = true;
kidecha_rahul 23:288c5d1babd1 184 }
kidecha_rahul 23:288c5d1babd1 185 else
kidecha_rahul 23:288c5d1babd1 186 {
kidecha_rahul 23:288c5d1babd1 187 //printf("The timestamp is not divisible by 60 \n");
kidecha_rahul 23:288c5d1babd1 188 }
kidecha_rahul 23:288c5d1babd1 189 flag_first = true;
kidecha_rahul 23:288c5d1babd1 190
kidecha_rahul 23:288c5d1babd1 191 }
kidecha_rahul 23:288c5d1babd1 192
kidecha_rahul 23:288c5d1babd1 193 } while (timestamp_reader==false); // take the third timestamp
kidecha_rahul 23:288c5d1babd1 194
kidecha_rahul 23:288c5d1babd1 195 //---------------------------------software RTC End---------------------------------------------//
kidecha_rahul 23:288c5d1babd1 196
kidecha_rahul 17:f0008ebb1040 197
parthsagar2010 16:520034b124b6 198 while(1)
parthsagar2010 9:24ecf16eab0f 199 {
kidecha_rahul 23:288c5d1babd1 200
kidecha_rahul 23:288c5d1babd1 201
kidecha_rahul 23:288c5d1babd1 202 if ((onesec_counter>=112))
kidecha_rahul 23:288c5d1babd1 203 {
kidecha_rahul 23:288c5d1babd1 204 tic++;
kidecha_rahul 23:288c5d1babd1 205
kidecha_rahul 18:101042d225ef 206 pc.write((uint8_t *)header_device_id, sizeof(header_device_id)); // device ID
parthsagar2010 10:54aa50490b15 207
kidecha_rahul 18:101042d225ef 208 pc.write((uint8_t *)header_packet_type, sizeof(header_packet_type)); // packet type
kidecha_rahul 18:101042d225ef 209
kidecha_rahul 23:288c5d1babd1 210 time_t seconds = time(NULL);
kidecha_rahul 23:288c5d1babd1 211 packet_1 = seconds;
kidecha_rahul 23:288c5d1babd1 212
kidecha_rahul 17:f0008ebb1040 213 //time_t seconds = time(NULL); // if remove it the timestamp will be static
kidecha_rahul 23:288c5d1babd1 214 //packet_1 ++;
kidecha_rahul 23:288c5d1babd1 215 // printf("Time as seconds since January 1, 1970 = %d\n", packet_1);
parthsagar2010 10:54aa50490b15 216 p_1 = packet_1 & 0xff;
parthsagar2010 10:54aa50490b15 217 p_2 = (packet_1 >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 218 p_3 = (packet_1 >> 16) & 0xff;
parthsagar2010 10:54aa50490b15 219 p_4 = (packet_1 >> 24) & 0xff;
parthsagar2010 10:54aa50490b15 220 // checksum_ = checksum_ + (packet_1 & 0xffff) + ((packet_1 >> 16) & 0xffff) ;
parthsagar2010 10:54aa50490b15 221 checksum_ = checksum_ + p_1 + p_2 + p_3 + p_4 ;
parthsagar2010 10:54aa50490b15 222 uint8_t header_packet_id[4] = {p_4,p_3,p_2,p_1};
kidecha_rahul 18:101042d225ef 223 pc.write((uint8_t *)header_packet_id, sizeof(header_packet_id)); // packet ID
kidecha_rahul 18:101042d225ef 224
kidecha_rahul 18:101042d225ef 225
parthsagar2010 16:520034b124b6 226 pc.write((uint8_t *)channel_num, sizeof(channel_num));
kidecha_rahul 18:101042d225ef 227
parthsagar2010 10:54aa50490b15 228 onesec_counter_temp = onesec_counter * 2;
parthsagar2010 10:54aa50490b15 229 data_len_1 = onesec_counter_temp & 0xff;
parthsagar2010 10:54aa50490b15 230 data_len_2 = (onesec_counter_temp >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 231 checksum_ = checksum_ + data_len_1 + data_len_2;
parthsagar2010 10:54aa50490b15 232 //pc.write((uint32_t *)packet_1, sizeof(packet_1));
parthsagar2010 10:54aa50490b15 233 uint8_t header_ecg_datalen[2] = {data_len_2,data_len_1};
parthsagar2010 10:54aa50490b15 234 pc.write((uint8_t *)header_ecg_datalen, sizeof(header_ecg_datalen));
kidecha_rahul 18:101042d225ef 235
parthsagar2010 10:54aa50490b15 236 mod_checksum = checksum_ % 65536 ;
parthsagar2010 10:54aa50490b15 237 cksm_1 = mod_checksum & 0xff;
parthsagar2010 10:54aa50490b15 238 cksm_2 = (mod_checksum >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 239 uint8_t header_ecg_checksum[2] = {cksm_2,cksm_1};
parthsagar2010 10:54aa50490b15 240 pc.write((uint8_t *)header_ecg_checksum, sizeof(header_ecg_checksum));
parthsagar2010 10:54aa50490b15 241
parthsagar2010 10:54aa50490b15 242 pc.write((int16_t *)ecgSample_1sec,onesec_counter * sizeof(int16_t));
parthsagar2010 15:0356e9454a60 243 // printf("Samples per second %d \n", (onesec_counter));
parthsagar2010 10:54aa50490b15 244 onesec_counter = 0;
parthsagar2010 10:54aa50490b15 245 // memset(ecgSample_1sec, 0, sizeof(ecgSample_1sec));
parthsagar2010 10:54aa50490b15 246
parthsagar2010 10:54aa50490b15 247 pc.write((uint8_t *)ending, sizeof(ending));
parthsagar2010 10:54aa50490b15 248 checksum_ = 0;
parthsagar2010 15:0356e9454a60 249 //t.stop();
parthsagar2010 11:300afaf2696b 250 // auto us = t.elapsed_time().count();
parthsagar2010 15:0356e9454a60 251 // float time_taken = us/1000000;
parthsagar2010 15:0356e9454a60 252 // printf("Timer time: %lu ms \n", (time_taken*100));
parthsagar2010 15:0356e9454a60 253 // t.reset();
parthsagar2010 15:0356e9454a60 254 // timer_fast.reset();
kidecha_rahul 19:7a084dc2f09d 255
kidecha_rahul 23:288c5d1babd1 256
kidecha_rahul 23:288c5d1babd1 257 if (tic==10) //C1
kidecha_rahul 19:7a084dc2f09d 258 {
kidecha_rahul 19:7a084dc2f09d 259 S0=1;
kidecha_rahul 19:7a084dc2f09d 260 S1=0;
kidecha_rahul 23:288c5d1babd1 261 // S2=0;
kidecha_rahul 23:288c5d1babd1 262 // S3=0;
kidecha_rahul 20:2e999e6568c1 263 channel_num[0]= {1};
kidecha_rahul 19:7a084dc2f09d 264 }
kidecha_rahul 23:288c5d1babd1 265 if (tic==20) //C2
kidecha_rahul 19:7a084dc2f09d 266 {
kidecha_rahul 19:7a084dc2f09d 267 S0=0;
kidecha_rahul 19:7a084dc2f09d 268 S1=1;
kidecha_rahul 23:288c5d1babd1 269 // S2=0;
kidecha_rahul 23:288c5d1babd1 270 // S3=0;
kidecha_rahul 20:2e999e6568c1 271 channel_num[0]= {2};
kidecha_rahul 19:7a084dc2f09d 272 }
kidecha_rahul 19:7a084dc2f09d 273
kidecha_rahul 23:288c5d1babd1 274 if (tic==30) // C0
kidecha_rahul 19:7a084dc2f09d 275 {
kidecha_rahul 19:7a084dc2f09d 276 S0=0;
kidecha_rahul 19:7a084dc2f09d 277 S1=0;
kidecha_rahul 23:288c5d1babd1 278 // S2=0;
kidecha_rahul 23:288c5d1babd1 279 // S3=0;
kidecha_rahul 20:2e999e6568c1 280 channel_num[0]= {0};
kidecha_rahul 23:288c5d1babd1 281 tic=0;}
kidecha_rahul 23:288c5d1babd1 282
kidecha_rahul 21:193a10530741 283
kidecha_rahul 23:288c5d1babd1 284 // for channel selection
kidecha_rahul 23:288c5d1babd1 285
kidecha_rahul 23:288c5d1babd1 286 if (A==0) //
kidecha_rahul 23:288c5d1babd1 287 {tic=50;
kidecha_rahul 22:07eec382c267 288 S0=0;
kidecha_rahul 22:07eec382c267 289 S1=0;
kidecha_rahul 23:288c5d1babd1 290 // S2=0;
kidecha_rahul 23:288c5d1babd1 291 // S3=0;
kidecha_rahul 22:07eec382c267 292 channel_num[0]= {0};}
kidecha_rahul 22:07eec382c267 293
kidecha_rahul 23:288c5d1babd1 294 if (B==0) //
kidecha_rahul 23:288c5d1babd1 295 {tic=60;
kidecha_rahul 21:193a10530741 296 S0=1;
kidecha_rahul 21:193a10530741 297 S1=0;
kidecha_rahul 23:288c5d1babd1 298 // S2=0;
kidecha_rahul 23:288c5d1babd1 299 // S3=0;
kidecha_rahul 22:07eec382c267 300 channel_num[0]= {1};}
kidecha_rahul 22:07eec382c267 301
kidecha_rahul 23:288c5d1babd1 302 if (C==0) //
kidecha_rahul 23:288c5d1babd1 303 {tic=70;
kidecha_rahul 21:193a10530741 304 S0=0;
kidecha_rahul 21:193a10530741 305 S1=1;
kidecha_rahul 23:288c5d1babd1 306 // S2=0;
kidecha_rahul 23:288c5d1babd1 307 // S3=0;
kidecha_rahul 21:193a10530741 308 channel_num[0]= {2};}
kidecha_rahul 23:288c5d1babd1 309
kidecha_rahul 23:288c5d1babd1 310
kidecha_rahul 23:288c5d1babd1 311
kidecha_rahul 23:288c5d1babd1 312
kidecha_rahul 23:288c5d1babd1 313
kidecha_rahul 23:288c5d1babd1 314
kidecha_rahul 23:288c5d1babd1 315
kidecha_rahul 23:288c5d1babd1 316
kidecha_rahul 19:7a084dc2f09d 317
parthsagar2010 9:24ecf16eab0f 318 }
coreyharris 4:06e258ff0b97 319 // Read back ECG samples from the FIFO
kidecha_rahul 23:288c5d1babd1 320 else if((ecgFIFOIntFlag==1))// && (timerflag == 0))
parthsagar2010 9:24ecf16eab0f 321 {
coreyharris 2:812d40f1853d 322
coreyharris 5:f8d1f651bef5 323 ecgFIFOIntFlag = 0;
coreyharris 4:06e258ff0b97 324 status = ecgAFE.readRegister( MAX30003::STATUS ); // Read the STATUS register
coreyharris 2:812d40f1853d 325
coreyharris 3:420d5efbd967 326 // Check if EINT interrupt asserted
parthsagar2010 9:24ecf16eab0f 327 if ( ( status & EINT_STATUS_MASK ) == EINT_STATUS_MASK )
parthsagar2010 9:24ecf16eab0f 328 {
coreyharris 3:420d5efbd967 329
coreyharris 4:06e258ff0b97 330 readECGSamples = 0; // Reset sample counter
coreyharris 3:420d5efbd967 331
coreyharris 2:812d40f1853d 332 do {
coreyharris 6:86ac850c718d 333 ecgFIFO = ecgAFE.readRegister( MAX30003::ECG_FIFO ); // Read FIFO
coreyharris 4:06e258ff0b97 334 ecgSample[readECGSamples] = ecgFIFO >> 8; // Isolate voltage data
parthsagar2010 10:54aa50490b15 335 ecgSample[readECGSamples] = ((ecgSample[readECGSamples]<<8)&0xFF00)|((ecgSample[readECGSamples]>>8)&0x00FF);
coreyharris 6:86ac850c718d 336 ETAG[readECGSamples] = ( ecgFIFO >> 3 ) & ETAG_BITS_MASK; // Isolate ETAG
coreyharris 4:06e258ff0b97 337 readECGSamples++; // Increment sample counter
coreyharris 3:420d5efbd967 338
coreyharris 3:420d5efbd967 339 // Check that sample is not last sample in FIFO
coreyharris 6:86ac850c718d 340 } while ( ETAG[readECGSamples-1] == FIFO_VALID_SAMPLE_MASK ||
coreyharris 6:86ac850c718d 341 ETAG[readECGSamples-1] == FIFO_FAST_SAMPLE_MASK );
coreyharris 2:812d40f1853d 342
coreyharris 3:420d5efbd967 343 // Check if FIFO has overflowed
parthsagar2010 9:24ecf16eab0f 344 if( ETAG[readECGSamples - 1] == FIFO_OVF_MASK )
parthsagar2010 9:24ecf16eab0f 345 {
coreyharris 3:420d5efbd967 346 ecgAFE.writeRegister( MAX30003::FIFO_RST , 0); // Reset FIFO
johnGreeneMaxim 7:cf0855a0450a 347 rLed = 1;//notifies the user that an over flow occured
coreyharris 3:420d5efbd967 348 }
parthsagar2010 10:54aa50490b15 349 //uint8_t header_ecg_checksum[2] = {'%','%'};
parthsagar2010 10:54aa50490b15 350 //pc.write((uint8_t *)header_ecg_checksum, sizeof(header_ecg_checksum));
coreyharris 3:420d5efbd967 351
parthsagar2010 10:54aa50490b15 352 //pc.write((int16_t *)ecgSample,readECGSamples * sizeof(int16_t ));
parthsagar2010 10:54aa50490b15 353 //memcpy(ecgSample_1sec , ecgSample, sizeof(ecgSample));
parthsagar2010 10:54aa50490b15 354
parthsagar2010 10:54aa50490b15 355 //memcpy(ecgSample_1sec + (onesec_counter * sizeof(int16_t)), ecgSample, sizeof(ecgSample));
parthsagar2010 15:0356e9454a60 356
parthsagar2010 15:0356e9454a60 357 if (flip)
parthsagar2010 15:0356e9454a60 358 {
parthsagar2010 15:0356e9454a60 359 sampleps = 12;
parthsagar2010 15:0356e9454a60 360 //printf("Flipped 12\r\n");
parthsagar2010 15:0356e9454a60 361 }
parthsagar2010 15:0356e9454a60 362 else
parthsagar2010 15:0356e9454a60 363 {
parthsagar2010 15:0356e9454a60 364 sampleps = 13;
parthsagar2010 15:0356e9454a60 365 // printf("Flipped 13\r\n");
parthsagar2010 15:0356e9454a60 366 }
parthsagar2010 15:0356e9454a60 367
parthsagar2010 15:0356e9454a60 368 for( idx = 0; idx < sampleps; idx++ )
parthsagar2010 9:24ecf16eab0f 369 {
parthsagar2010 9:24ecf16eab0f 370 //pc.printf("%6d\r\n", ecgSample[idx]);
parthsagar2010 9:24ecf16eab0f 371 ecgSample_1sec[onesec_counter] = ecgSample[idx];
parthsagar2010 10:54aa50490b15 372
parthsagar2010 10:54aa50490b15 373 cksm_1 = ecgSample[idx] & 0xff;
parthsagar2010 10:54aa50490b15 374 cksm_2 = (ecgSample[idx] >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 375 checksum_ += cksm_1 + cksm_2;
parthsagar2010 9:24ecf16eab0f 376 onesec_counter++;
coreyharris 6:86ac850c718d 377 }
parthsagar2010 15:0356e9454a60 378 flip =!flip;
parthsagar2010 15:0356e9454a60 379 rLed = ! rLed;
coreyharris 0:38c49bc37c7c 380 }
parthsagar2010 10:54aa50490b15 381
coreyharris 0:38c49bc37c7c 382 }
coreyharris 0:38c49bc37c7c 383 }
coreyharris 0:38c49bc37c7c 384 }
kidecha_rahul 23:288c5d1babd1 385
kidecha_rahul 23:288c5d1babd1 386
kidecha_rahul 23:288c5d1babd1 387
kidecha_rahul 23:288c5d1babd1 388
coreyharris 0:38c49bc37c7c 389 void ecg_config(MAX30003& ecgAFE) {
kidecha_rahul 23:288c5d1babd1 390
coreyharris 1:86843c27cc81 391 // Reset ECG to clear registers
coreyharris 1:86843c27cc81 392 ecgAFE.writeRegister( MAX30003::SW_RST , 0);
coreyharris 0:38c49bc37c7c 393
coreyharris 1:86843c27cc81 394 // General config register setting
coreyharris 1:86843c27cc81 395 MAX30003::GeneralConfiguration_u CNFG_GEN_r;
coreyharris 3:420d5efbd967 396 CNFG_GEN_r.bits.en_ecg = 1; // Enable ECG channel
coreyharris 3:420d5efbd967 397 CNFG_GEN_r.bits.rbiasn = 1; // Enable resistive bias on negative input
coreyharris 3:420d5efbd967 398 CNFG_GEN_r.bits.rbiasp = 1; // Enable resistive bias on positive input
coreyharris 3:420d5efbd967 399 CNFG_GEN_r.bits.en_rbias = 1; // Enable resistive bias
coreyharris 3:420d5efbd967 400 CNFG_GEN_r.bits.imag = 2; // Current magnitude = 10nA
coreyharris 3:420d5efbd967 401 CNFG_GEN_r.bits.en_dcloff = 1; // Enable DC lead-off detection
parthsagar2010 12:10b49ad3c492 402 //CNFG_GEN_r.bits.fmstr = 1; //125 sps FMSTR 1
coreyharris 1:86843c27cc81 403 ecgAFE.writeRegister( MAX30003::CNFG_GEN , CNFG_GEN_r.all);
coreyharris 1:86843c27cc81 404
coreyharris 1:86843c27cc81 405
coreyharris 1:86843c27cc81 406 // ECG Config register setting
coreyharris 1:86843c27cc81 407 MAX30003::ECGConfiguration_u CNFG_ECG_r;
coreyharris 3:420d5efbd967 408 CNFG_ECG_r.bits.dlpf = 1; // Digital LPF cutoff = 40Hz
coreyharris 3:420d5efbd967 409 CNFG_ECG_r.bits.dhpf = 1; // Digital HPF cutoff = 0.5Hz
coreyharris 3:420d5efbd967 410 CNFG_ECG_r.bits.gain = 3; // ECG gain = 160V/V
kidecha_rahul 23:288c5d1babd1 411 CNFG_ECG_r.bits.rate = 2; // Sample rate = 128 sps
coreyharris 1:86843c27cc81 412 ecgAFE.writeRegister( MAX30003::CNFG_ECG , CNFG_ECG_r.all);
coreyharris 1:86843c27cc81 413
coreyharris 1:86843c27cc81 414
coreyharris 1:86843c27cc81 415 //R-to-R configuration
coreyharris 1:86843c27cc81 416 MAX30003::RtoR1Configuration_u CNFG_RTOR_r;
coreyharris 3:420d5efbd967 417 CNFG_RTOR_r.bits.en_rtor = 1; // Enable R-to-R detection
coreyharris 1:86843c27cc81 418 ecgAFE.writeRegister( MAX30003::CNFG_RTOR1 , CNFG_RTOR_r.all);
coreyharris 1:86843c27cc81 419
coreyharris 1:86843c27cc81 420
coreyharris 1:86843c27cc81 421 //Manage interrupts register setting
coreyharris 1:86843c27cc81 422 MAX30003::ManageInterrupts_u MNG_INT_r;
coreyharris 3:420d5efbd967 423 MNG_INT_r.bits.efit = 0b00011; // Assert EINT w/ 4 unread samples
coreyharris 3:420d5efbd967 424 MNG_INT_r.bits.clr_rrint = 0b01; // Clear R-to-R on RTOR reg. read back
coreyharris 1:86843c27cc81 425 ecgAFE.writeRegister( MAX30003::MNGR_INT , MNG_INT_r.all);
coreyharris 0:38c49bc37c7c 426
coreyharris 0:38c49bc37c7c 427
coreyharris 1:86843c27cc81 428 //Enable interrupts register setting
coreyharris 1:86843c27cc81 429 MAX30003::EnableInterrupts_u EN_INT_r;
coreyharris 5:f8d1f651bef5 430 EN_INT_r.all = 0;
coreyharris 3:420d5efbd967 431 EN_INT_r.bits.en_eint = 1; // Enable EINT interrupt
coreyharris 4:06e258ff0b97 432 EN_INT_r.bits.en_rrint = 0; // Disable R-to-R interrupt
coreyharris 3:420d5efbd967 433 EN_INT_r.bits.intb_type = 3; // Open-drain NMOS with internal pullup
coreyharris 1:86843c27cc81 434 ecgAFE.writeRegister( MAX30003::EN_INT , EN_INT_r.all);
coreyharris 1:86843c27cc81 435
coreyharris 1:86843c27cc81 436
coreyharris 1:86843c27cc81 437 //Dyanmic modes config
coreyharris 1:86843c27cc81 438 MAX30003::ManageDynamicModes_u MNG_DYN_r;
coreyharris 3:420d5efbd967 439 MNG_DYN_r.bits.fast = 0; // Fast recovery mode disabled
coreyharris 1:86843c27cc81 440 ecgAFE.writeRegister( MAX30003::MNGR_DYN , MNG_DYN_r.all);
coreyharris 5:f8d1f651bef5 441
coreyharris 5:f8d1f651bef5 442 // MUX Config
coreyharris 5:f8d1f651bef5 443 MAX30003::MuxConfiguration_u CNFG_MUX_r;
coreyharris 5:f8d1f651bef5 444 CNFG_MUX_r.bits.openn = 0; // Connect ECGN to AFE channel
coreyharris 5:f8d1f651bef5 445 CNFG_MUX_r.bits.openp = 0; // Connect ECGP to AFE channel
coreyharris 5:f8d1f651bef5 446 ecgAFE.writeRegister( MAX30003::CNFG_EMUX , CNFG_MUX_r.all);
coreyharris 1:86843c27cc81 447
coreyharris 1:86843c27cc81 448 return;
coreyharris 0:38c49bc37c7c 449 }
kidecha_rahul 23:288c5d1babd1 450