MH / Mbed OS MAX30003WING_monitorhealth_beta_test1_2ChannelID_5192021_copy

Test2

Dependencies:   MAX30003 max32630fthr DS1307

main.cpp@18:462e396f9e5a, 2021-05-20 (annotated)

Committer:
kidecha_rahul
Date:
Thu May 20 15:54:10 2021 +0000
Revision:
18:462e396f9e5a
Parent:
17:4bf0775c1b38 
Test2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
coreyharris 6:86ac850c718d 1
kidecha_rahul 17:4bf0775c1b38 2
coreyharris 0:38c49bc37c7c 3 #include "mbed.h"
coreyharris 0:38c49bc37c7c 4 #include "max32630fthr.h"
parthsagar2010 9:24ecf16eab0f 5 #include "ds1307.h"
kidecha_rahul 17:4bf0775c1b38 6 #include "MAX30003.h"
kidecha_rahul 17:4bf0775c1b38 7
parthsagar2010 11:300afaf2696b 8 //#include <BufferedSerial.h>
parthsagar2010 10:54aa50490b15 9 #include <string>
parthsagar2010 10:54aa50490b15 10 //#include <Serial.h>
parthsagar2010 11:300afaf2696b 11
parthsagar2010 11:300afaf2696b 12 #define TARGET_TX_PIN P3_1
parthsagar2010 11:300afaf2696b 13 #define TARGET_RX_PIN P3_0
parthsagar2010 11:300afaf2696b 14
parthsagar2010 9:24ecf16eab0f 15 Timer timer_fast;
parthsagar2010 10:54aa50490b15 16 Timer t;
coreyharris 0:38c49bc37c7c 17 MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
coreyharris 0:38c49bc37c7c 18
parthsagar2010 9:24ecf16eab0f 19 void task_fast(void);
kidecha_rahul 18:462e396f9e5a 20 //DigitalOut ledA(LED2);
parthsagar2010 13:0e7bbc06083f 21
coreyharris 0:38c49bc37c7c 22 void ecg_config(MAX30003 &ecgAFE);
kidecha_rahul 17:4bf0775c1b38 23
kidecha_rahul 17:4bf0775c1b38 24 void ecg_config_off(MAX30003& ecgAFE);
kidecha_rahul 17:4bf0775c1b38 25
kidecha_rahul 17:4bf0775c1b38 26
parthsagar2010 11:300afaf2696b 27 //BufferedSerial pc(P3_1,P3_0); // Use USB debug probe for serial link static Unbuffered
kidecha_rahul 18:462e396f9e5a 28 //BufferedSerial pc(P0_1,P0_0);
kidecha_rahul 16:8fc65c8fa0e8 29
kidecha_rahul 18:462e396f9e5a 30 static BufferedSerial pc(TARGET_TX_PIN, TARGET_RX_PIN, 230400); // 230400 works well
parthsagar2010 11:300afaf2696b 31
parthsagar2010 10:54aa50490b15 32 //Serial uart_1(USBTX, USBRX); // Use USB debug probe for serial link static Unbuffered
parthsagar2010 10:54aa50490b15 33 //
kidecha_rahul 18:462e396f9e5a 34 //Serial pc(P0_1,P0_0);
kidecha_rahul 17:4bf0775c1b38 35
parthsagar2010 9:24ecf16eab0f 36 volatile bool timerflag = 0;
parthsagar2010 11:300afaf2696b 37
parthsagar2010 11:300afaf2696b 38 FileHandle *mbed::mbed_override_console(int fd)
parthsagar2010 11:300afaf2696b 39 {
parthsagar2010 11:300afaf2696b 40 return &pc;
parthsagar2010 11:300afaf2696b 41 }
parthsagar2010 11:300afaf2696b 42
kidecha_rahul 17:4bf0775c1b38 43 volatile bool ecgFIFOIntFlag = 0;
kidecha_rahul 17:4bf0775c1b38 44 void ecgFIFO_callback()
kidecha_rahul 17:4bf0775c1b38 45 {
coreyharris 0:38c49bc37c7c 46 ecgFIFOIntFlag = 1;
coreyharris 0:38c49bc37c7c 47 }
coreyharris 0:38c49bc37c7c 48
kidecha_rahul 17:4bf0775c1b38 49 volatile bool ecgFIFOIntFlag_1 = 0;
kidecha_rahul 17:4bf0775c1b38 50 void ecgFIFO_callback_1()
kidecha_rahul 17:4bf0775c1b38 51 {
kidecha_rahul 17:4bf0775c1b38 52 ecgFIFOIntFlag_1 = 1;
kidecha_rahul 17:4bf0775c1b38 53 }
kidecha_rahul 17:4bf0775c1b38 54
parthsagar2010 12:10b49ad3c492 55 time_t asUnixTime(int year, int mon, int mday, int hour, int min, int sec) {
parthsagar2010 12:10b49ad3c492 56 struct tm t;
parthsagar2010 12:10b49ad3c492 57 t.tm_year = year - 1900;
parthsagar2010 12:10b49ad3c492 58 t.tm_mon = mon - 1; // convert to 0 based month
parthsagar2010 12:10b49ad3c492 59 t.tm_mday = mday;
parthsagar2010 12:10b49ad3c492 60 t.tm_hour = hour;
parthsagar2010 12:10b49ad3c492 61 t.tm_min = min;
parthsagar2010 12:10b49ad3c492 62 t.tm_sec = sec;
parthsagar2010 12:10b49ad3c492 63 t.tm_isdst = -1; // Is Daylight saving time on? 1 = yes, 0 = no, -1 = unknown
parthsagar2010 12:10b49ad3c492 64
parthsagar2010 12:10b49ad3c492 65 return mktime(&t); // returns seconds elapsed since January 1, 1970 (begin of the Epoch)
parthsagar2010 12:10b49ad3c492 66 }
kidecha_rahul 17:4bf0775c1b38 67
parthsagar2010 11:300afaf2696b 68 int main(void)
coreyharris 3:420d5efbd967 69 {
parthsagar2010 11:300afaf2696b 70 // Constants
coreyharris 4:06e258ff0b97 71 const int EINT_STATUS_MASK = 1 << 23;
coreyharris 6:86ac850c718d 72 const int FIFO_OVF_MASK = 0x7;
coreyharris 6:86ac850c718d 73 const int FIFO_VALID_SAMPLE_MASK = 0x0;
coreyharris 6:86ac850c718d 74 const int FIFO_FAST_SAMPLE_MASK = 0x1;
coreyharris 6:86ac850c718d 75 const int ETAG_BITS_MASK = 0x7;
kidecha_rahul 16:8fc65c8fa0e8 76
parthsagar2010 9:24ecf16eab0f 77 timer_fast.start();
kidecha_rahul 18:462e396f9e5a 78 // DigitalOut rLed(LED2, LED_ON);
parthsagar2010 10:54aa50490b15 79 // pc.baud(9600);
parthsagar2010 11:300afaf2696b 80 //pc.set_baud(115200); // Baud rate = 115200
parthsagar2010 11:300afaf2696b 81 //pc.set_format(
parthsagar2010 11:300afaf2696b 82 // /* bits */ 8,
parthsagar2010 11:300afaf2696b 83 // /* parity */ BufferedSerial::None,
parthsagar2010 11:300afaf2696b 84 // /* stop bit */ 1 //1
parthsagar2010 11:300afaf2696b 85 //);
parthsagar2010 10:54aa50490b15 86 //uart_1.baud(115200);
kidecha_rahul 17:4bf0775c1b38 87
kidecha_rahul 17:4bf0775c1b38 88 //----------------------------------------------------------------------------------------------//
kidecha_rahul 17:4bf0775c1b38 89
coreyharris 1:86843c27cc81 90 InterruptIn ecgFIFO_int(P5_4); // Config P5_4 as int. in for the
kidecha_rahul 17:4bf0775c1b38 91 ecgFIFO_int.fall(&ecgFIFO_callback); // ecg FIFO interrupt at falling edge
kidecha_rahul 17:4bf0775c1b38 92
kidecha_rahul 17:4bf0775c1b38 93 DigitalOut bLed(LED3, LED_ON);
coreyharris 0:38c49bc37c7c 94
coreyharris 1:86843c27cc81 95 SPI spiBus(SPI2_MOSI, SPI2_MISO, SPI2_SCK); // SPI bus, P5_1 = MOSI,
coreyharris 1:86843c27cc81 96 // P5_2 = MISO, P5_0 = SCK
parthsagar2010 10:54aa50490b15 97
coreyharris 4:06e258ff0b97 98 MAX30003 ecgAFE(spiBus, P5_3); // New MAX30003 on spiBus, CS = P5_3
parthsagar2010 8:6b9359f81cc0 99
coreyharris 4:06e258ff0b97 100 ecg_config(ecgAFE); // Config ECG
parthsagar2010 12:10b49ad3c492 101
coreyharris 0:38c49bc37c7c 102
coreyharris 4:06e258ff0b97 103 ecgAFE.writeRegister( MAX30003::SYNCH , 0);
coreyharris 0:38c49bc37c7c 104
coreyharris 4:06e258ff0b97 105 uint32_t ecgFIFO, readECGSamples, idx, ETAG[32], status;
kidecha_rahul 18:462e396f9e5a 106 int16_t ecgSample[32],x = 0;
kidecha_rahul 16:8fc65c8fa0e8 107 //-----------------------------------------------------------------------------------------------//
kidecha_rahul 16:8fc65c8fa0e8 108
kidecha_rahul 18:462e396f9e5a 109 //bool timerflag = false;
parthsagar2010 10:54aa50490b15 110 int16_t ecgSample_1sec[200];
kidecha_rahul 16:8fc65c8fa0e8 111 //uint8_t ecg_1 = 0;
kidecha_rahul 16:8fc65c8fa0e8 112 // uint8_t ecg_2 = 0;
parthsagar2010 10:54aa50490b15 113 uint16_t onesec_counter = 0;
parthsagar2010 10:54aa50490b15 114 uint16_t onesec_counter_temp = 0;
parthsagar2010 10:54aa50490b15 115
kidecha_rahul 16:8fc65c8fa0e8 116 uint8_t channel_ID[3]= {1,2,3};
kidecha_rahul 16:8fc65c8fa0e8 117 uint8_t ecg_1 = 0;
kidecha_rahul 16:8fc65c8fa0e8 118 uint8_t ecg_2 = 0;
kidecha_rahul 16:8fc65c8fa0e8 119 uint8_t ecg_3 = 0;
kidecha_rahul 16:8fc65c8fa0e8 120
parthsagar2010 9:24ecf16eab0f 121 int16_t sample = 300;
parthsagar2010 10:54aa50490b15 122 uint8_t final[10];
parthsagar2010 12:10b49ad3c492 123
parthsagar2010 10:54aa50490b15 124 uint16_t checksum_ = 0;
parthsagar2010 10:54aa50490b15 125 uint16_t mod_checksum = 0;
parthsagar2010 10:54aa50490b15 126
parthsagar2010 10:54aa50490b15 127 uint8_t p_1 = 0;
parthsagar2010 10:54aa50490b15 128 uint8_t p_2 = 0;
parthsagar2010 10:54aa50490b15 129 uint8_t p_3 = 0;
parthsagar2010 10:54aa50490b15 130 uint8_t p_4 = 0;
parthsagar2010 10:54aa50490b15 131
parthsagar2010 10:54aa50490b15 132 uint8_t data_len_1 = 0;
parthsagar2010 10:54aa50490b15 133 uint8_t data_len_2 = 0;
parthsagar2010 12:10b49ad3c492 134 uint32_t packet_1 = 0;
parthsagar2010 10:54aa50490b15 135 uint8_t cksm_1 = 0;
parthsagar2010 10:54aa50490b15 136 uint8_t cksm_2 = 0;
parthsagar2010 10:54aa50490b15 137 uint8_t header_device_id[3] = {0,0,210};
parthsagar2010 10:54aa50490b15 138 uint8_t header_packet_type[2] = {0,2};
parthsagar2010 10:54aa50490b15 139
parthsagar2010 10:54aa50490b15 140 uint8_t ending[5] = {'@','#','%','!','7'};
parthsagar2010 10:54aa50490b15 141
parthsagar2010 15:0356e9454a60 142 bool flip = true;
parthsagar2010 15:0356e9454a60 143 int sampleps = 0;
parthsagar2010 15:0356e9454a60 144
kidecha_rahul 18:462e396f9e5a 145 char buf[20] = {"1621525631"};
kidecha_rahul 16:8fc65c8fa0e8 146
kidecha_rahul 16:8fc65c8fa0e8 147
kidecha_rahul 16:8fc65c8fa0e8 148
parthsagar2010 15:0356e9454a60 149 // pc.write("Welcome",8*sizeof(char));
parthsagar2010 15:0356e9454a60 150 // printf("In the main loop"); //printf("In the main loop");
parthsagar2010 11:300afaf2696b 151 bool flag_first = false;
kidecha_rahul 16:8fc65c8fa0e8 152 bool timestamp_reader = false;
kidecha_rahul 18:462e396f9e5a 153
kidecha_rahul 18:462e396f9e5a 154 /*
kidecha_rahul 18:462e396f9e5a 155 do
parthsagar2010 11:300afaf2696b 156 {
kidecha_rahul 16:8fc65c8fa0e8 157 if (pc.readable()) // For nordic - Readiing time
parthsagar2010 12:10b49ad3c492 158 {
kidecha_rahul 17:4bf0775c1b38 159 scanf("%s",buf);
parthsagar2010 15:0356e9454a60 160 //printf("The entered string is %s : \n ",buf);
parthsagar2010 12:10b49ad3c492 161
kidecha_rahul 16:8fc65c8fa0e8 162 packet_1 = atoi(buf); // converting ascii to integer
kidecha_rahul 16:8fc65c8fa0e8 163 set_time(packet_1); // check unit in packet_1 ??
parthsagar2010 12:10b49ad3c492 164
kidecha_rahul 16:8fc65c8fa0e8 165 if ((packet_1 % 60) == 0) // tim stamp at the beginning of time
parthsagar2010 15:0356e9454a60 166 {
parthsagar2010 15:0356e9454a60 167 /* for (int u = 0;u<3;u++)
parthsagar2010 15:0356e9454a60 168 {
parthsagar2010 15:0356e9454a60 169 if (pc.readable())
parthsagar2010 15:0356e9454a60 170 {
parthsagar2010 15:0356e9454a60 171 scanf("%s",buf);
parthsagar2010 15:0356e9454a60 172 printf("Entered the minute string %s : \n ",buf);
parthsagar2010 15:0356e9454a60 173
parthsagar2010 15:0356e9454a60 174 packet_1 = atoi(buf);
parthsagar2010 15:0356e9454a60 175 set_time(packet_1);
parthsagar2010 15:0356e9454a60 176 }
parthsagar2010 15:0356e9454a60 177 }*/
kidecha_rahul 18:462e396f9e5a 178 /*timestamp_reader = true;
parthsagar2010 15:0356e9454a60 179 }
parthsagar2010 15:0356e9454a60 180 else
parthsagar2010 15:0356e9454a60 181 {
parthsagar2010 15:0356e9454a60 182 //printf("The timestamp is not divisible by 60 \n");
parthsagar2010 15:0356e9454a60 183 }
parthsagar2010 12:10b49ad3c492 184 //flag_first = true;
coreyharris 2:812d40f1853d 185
parthsagar2010 11:300afaf2696b 186 }
parthsagar2010 11:300afaf2696b 187
kidecha_rahul 18:462e396f9e5a 188 }while (timestamp_reader==false); // take the third timestamp */
kidecha_rahul 18:462e396f9e5a 189
kidecha_rahul 16:8fc65c8fa0e8 190
kidecha_rahul 18:462e396f9e5a 191 packet_1 = atoi(buf); // converting ascii to integer
kidecha_rahul 18:462e396f9e5a 192 set_time(packet_1); // check unit in packet_1 ??
kidecha_rahul 18:462e396f9e5a 193
kidecha_rahul 18:462e396f9e5a 194
kidecha_rahul 18:462e396f9e5a 195
kidecha_rahul 16:8fc65c8fa0e8 196 while(1)
parthsagar2010 9:24ecf16eab0f 197 {
parthsagar2010 10:54aa50490b15 198
kidecha_rahul 16:8fc65c8fa0e8 199 if ((onesec_counter>=125)) //125 sample rate
parthsagar2010 9:24ecf16eab0f 200 {
parthsagar2010 11:300afaf2696b 201 //t.start();
parthsagar2010 10:54aa50490b15 202 //ledA = !ledA;
kidecha_rahul 18:462e396f9e5a 203 //pc.write((uint8_t *)header_device_id, sizeof(header_device_id)); // sensor ID
kidecha_rahul 16:8fc65c8fa0e8 204 // pc.write((uint8_t *)header_packet_type, sizeof(header_packet_type)); // packet type
kidecha_rahul 16:8fc65c8fa0e8 205
kidecha_rahul 16:8fc65c8fa0e8 206 time_t seconds = time(NULL); // setting zero
parthsagar2010 12:10b49ad3c492 207 packet_1 = seconds;
kidecha_rahul 18:462e396f9e5a 208 //packet_1 ++;
parthsagar2010 15:0356e9454a60 209 // printf("Time as seconds since January 1, 1970 = %d\n", packet_1);
kidecha_rahul 18:462e396f9e5a 210
kidecha_rahul 16:8fc65c8fa0e8 211 p_1 = packet_1 & 0xff;
parthsagar2010 10:54aa50490b15 212 p_2 = (packet_1 >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 213 p_3 = (packet_1 >> 16) & 0xff;
parthsagar2010 10:54aa50490b15 214 p_4 = (packet_1 >> 24) & 0xff;
kidecha_rahul 18:462e396f9e5a 215
parthsagar2010 10:54aa50490b15 216 // checksum_ = checksum_ + (packet_1 & 0xffff) + ((packet_1 >> 16) & 0xffff) ;
parthsagar2010 10:54aa50490b15 217 checksum_ = checksum_ + p_1 + p_2 + p_3 + p_4 ;
parthsagar2010 10:54aa50490b15 218 uint8_t header_packet_id[4] = {p_4,p_3,p_2,p_1};
kidecha_rahul 18:462e396f9e5a 219 //pc.write((uint8_t *)header_packet_id, sizeof(header_packet_id)); //packet ID
kidecha_rahul 16:8fc65c8fa0e8 220
kidecha_rahul 16:8fc65c8fa0e8 221
kidecha_rahul 16:8fc65c8fa0e8 222 uint8_t Channel_Num = 0;
kidecha_rahul 16:8fc65c8fa0e8 223 if(ecg_1 == 1)
kidecha_rahul 16:8fc65c8fa0e8 224 Channel_Num = channel_ID[0];
kidecha_rahul 16:8fc65c8fa0e8 225 else if (ecg_2 == 1)
kidecha_rahul 16:8fc65c8fa0e8 226 Channel_Num = channel_ID[1];
kidecha_rahul 16:8fc65c8fa0e8 227 else if (ecg_3 == 1)
kidecha_rahul 16:8fc65c8fa0e8 228 Channel_Num = channel_ID[2];
kidecha_rahul 16:8fc65c8fa0e8 229 else
kidecha_rahul 16:8fc65c8fa0e8 230 Channel_Num = 0;
kidecha_rahul 16:8fc65c8fa0e8 231 //pc.write((uint8_t *)Channel_Num, sizeof(Channel_Num));
kidecha_rahul 17:4bf0775c1b38 232 //printf("%6d\r\n", Channel_Num);
kidecha_rahul 17:4bf0775c1b38 233 printf("channel No is %d \n",Channel_Num); //Channel no
kidecha_rahul 16:8fc65c8fa0e8 234
parthsagar2010 10:54aa50490b15 235 onesec_counter_temp = onesec_counter * 2;
parthsagar2010 10:54aa50490b15 236 data_len_1 = onesec_counter_temp & 0xff;
parthsagar2010 10:54aa50490b15 237 data_len_2 = (onesec_counter_temp >> 8) & 0xff;
kidecha_rahul 16:8fc65c8fa0e8 238 checksum_ = checksum_ + data_len_1 + data_len_2;
parthsagar2010 10:54aa50490b15 239 //pc.write((uint32_t *)packet_1, sizeof(packet_1));
parthsagar2010 10:54aa50490b15 240 uint8_t header_ecg_datalen[2] = {data_len_2,data_len_1};
kidecha_rahul 16:8fc65c8fa0e8 241 // pc.write((uint8_t *)header_ecg_datalen, sizeof(header_ecg_datalen)); // Data length
kidecha_rahul 16:8fc65c8fa0e8 242
kidecha_rahul 16:8fc65c8fa0e8 243
parthsagar2010 10:54aa50490b15 244 mod_checksum = checksum_ % 65536 ;
parthsagar2010 10:54aa50490b15 245 cksm_1 = mod_checksum & 0xff;
parthsagar2010 10:54aa50490b15 246 cksm_2 = (mod_checksum >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 247 uint8_t header_ecg_checksum[2] = {cksm_2,cksm_1};
kidecha_rahul 16:8fc65c8fa0e8 248 //pc.write((uint8_t *)header_ecg_checksum, sizeof(header_ecg_checksum)); // checksum
parthsagar2010 10:54aa50490b15 249
kidecha_rahul 16:8fc65c8fa0e8 250 // pc.write((int16_t *)ecgSample_1sec,onesec_counter * sizeof(int16_t)); // ECG Data
kidecha_rahul 16:8fc65c8fa0e8 251 printf("Samples per second %d \n", (onesec_counter));
kidecha_rahul 18:462e396f9e5a 252
parthsagar2010 10:54aa50490b15 253 onesec_counter = 0;
parthsagar2010 10:54aa50490b15 254 // memset(ecgSample_1sec, 0, sizeof(ecgSample_1sec));
parthsagar2010 10:54aa50490b15 255
kidecha_rahul 16:8fc65c8fa0e8 256 // pc.write((uint8_t *)ending, sizeof(ending)); // Ending of data
kidecha_rahul 16:8fc65c8fa0e8 257
parthsagar2010 10:54aa50490b15 258 checksum_ = 0;
parthsagar2010 15:0356e9454a60 259 //t.stop();
parthsagar2010 11:300afaf2696b 260 // auto us = t.elapsed_time().count();
parthsagar2010 15:0356e9454a60 261 // float time_taken = us/1000000;
parthsagar2010 15:0356e9454a60 262 // printf("Timer time: %lu ms \n", (time_taken*100));
parthsagar2010 15:0356e9454a60 263 // t.reset();
parthsagar2010 15:0356e9454a60 264 // timer_fast.reset();
parthsagar2010 9:24ecf16eab0f 265 }
kidecha_rahul 16:8fc65c8fa0e8 266
kidecha_rahul 17:4bf0775c1b38 267 do {
kidecha_rahul 17:4bf0775c1b38 268 // Read back ECG samples from the FIFO
kidecha_rahul 17:4bf0775c1b38 269 if( ecgFIFOIntFlag) {
kidecha_rahul 17:4bf0775c1b38 270
kidecha_rahul 16:8fc65c8fa0e8 271 ecg_1 = 1;
coreyharris 5:f8d1f651bef5 272 ecgFIFOIntFlag = 0;
coreyharris 4:06e258ff0b97 273 status = ecgAFE.readRegister( MAX30003::STATUS ); // Read the STATUS register
coreyharris 2:812d40f1853d 274
coreyharris 3:420d5efbd967 275 // Check if EINT interrupt asserted
kidecha_rahul 17:4bf0775c1b38 276 if ( ( status & EINT_STATUS_MASK ) == EINT_STATUS_MASK ) {
coreyharris 3:420d5efbd967 277
kidecha_rahul 17:4bf0775c1b38 278 readECGSamples = 0; // Reset sample counter
coreyharris 3:420d5efbd967 279
coreyharris 2:812d40f1853d 280 do {
kidecha_rahul 17:4bf0775c1b38 281 ecgFIFO = ecgAFE.readRegister( MAX30003::ECG_FIFO ); // Read FIFO
coreyharris 4:06e258ff0b97 282 ecgSample[readECGSamples] = ecgFIFO >> 8; // Isolate voltage data
coreyharris 6:86ac850c718d 283 ETAG[readECGSamples] = ( ecgFIFO >> 3 ) & ETAG_BITS_MASK; // Isolate ETAG
kidecha_rahul 17:4bf0775c1b38 284 readECGSamples++;
kidecha_rahul 17:4bf0775c1b38 285 // Increment sample counter
coreyharris 3:420d5efbd967 286
coreyharris 3:420d5efbd967 287 // Check that sample is not last sample in FIFO
coreyharris 6:86ac850c718d 288 } while ( ETAG[readECGSamples-1] == FIFO_VALID_SAMPLE_MASK ||
coreyharris 6:86ac850c718d 289 ETAG[readECGSamples-1] == FIFO_FAST_SAMPLE_MASK );
coreyharris 2:812d40f1853d 290
coreyharris 3:420d5efbd967 291 // Check if FIFO has overflowed
kidecha_rahul 17:4bf0775c1b38 292 if( ETAG[readECGSamples - 1] == FIFO_OVF_MASK ){
coreyharris 3:420d5efbd967 293 ecgAFE.writeRegister( MAX30003::FIFO_RST , 0); // Reset FIFO
kidecha_rahul 17:4bf0775c1b38 294 bLed = 1;//notifies the user that an over flow occured
coreyharris 3:420d5efbd967 295 }
parthsagar2010 15:0356e9454a60 296
parthsagar2010 15:0356e9454a60 297 if (flip)
parthsagar2010 15:0356e9454a60 298 {
parthsagar2010 15:0356e9454a60 299 sampleps = 12;
parthsagar2010 15:0356e9454a60 300 //printf("Flipped 12\r\n");
parthsagar2010 15:0356e9454a60 301 }
parthsagar2010 15:0356e9454a60 302 else
parthsagar2010 15:0356e9454a60 303 {
parthsagar2010 15:0356e9454a60 304 sampleps = 13;
parthsagar2010 15:0356e9454a60 305 // printf("Flipped 13\r\n");
kidecha_rahul 18:462e396f9e5a 306 }
kidecha_rahul 17:4bf0775c1b38 307 // Print results
kidecha_rahul 17:4bf0775c1b38 308 for( idx = 0; idx < readECGSamples; idx++ )
parthsagar2010 9:24ecf16eab0f 309 {
kidecha_rahul 17:4bf0775c1b38 310 // pc.printf("%6d\r\n", ecgSample[idx]);
kidecha_rahul 17:4bf0775c1b38 311 ecgSample_1sec[onesec_counter] = ecgSample[idx];
kidecha_rahul 17:4bf0775c1b38 312
kidecha_rahul 17:4bf0775c1b38 313 cksm_1 = ecgSample[idx] & 0xff;
kidecha_rahul 17:4bf0775c1b38 314 cksm_2 = (ecgSample[idx] >> 8) & 0xff;
kidecha_rahul 17:4bf0775c1b38 315 checksum_ += cksm_1 + cksm_2;
kidecha_rahul 17:4bf0775c1b38 316 onesec_counter++;
kidecha_rahul 17:4bf0775c1b38 317 }
kidecha_rahul 17:4bf0775c1b38 318 //rLed = 1;
kidecha_rahul 17:4bf0775c1b38 319 flip =!flip;
kidecha_rahul 17:4bf0775c1b38 320 bLed = ! bLed;
kidecha_rahul 17:4bf0775c1b38 321 x++;
kidecha_rahul 17:4bf0775c1b38 322 //if (x==100)
kidecha_rahul 17:4bf0775c1b38 323 //ecg_config_off(ecgAFE);
kidecha_rahul 17:4bf0775c1b38 324 }
kidecha_rahul 17:4bf0775c1b38 325 }
kidecha_rahul 17:4bf0775c1b38 326 }while(x<50);
kidecha_rahul 17:4bf0775c1b38 327 ecg_config_off(ecgAFE);
kidecha_rahul 17:4bf0775c1b38 328 bLed = ~bLed;
kidecha_rahul 17:4bf0775c1b38 329 x=0;
kidecha_rahul 17:4bf0775c1b38 330
kidecha_rahul 17:4bf0775c1b38 331 //--------------------------------------channal 2-----------------------------------------------//
kidecha_rahul 17:4bf0775c1b38 332 InterruptIn ecgFIFO_2_int(P1_5); // Config P5_4 as int. in for the
kidecha_rahul 17:4bf0775c1b38 333 ecgFIFO_2_int.fall(&ecgFIFO_callback_1); // ecg FIFO almost full interrupt
kidecha_rahul 17:4bf0775c1b38 334
kidecha_rahul 17:4bf0775c1b38 335 DigitalOut gLed(LED2, LED_ON);
kidecha_rahul 17:4bf0775c1b38 336
kidecha_rahul 17:4bf0775c1b38 337 SPI spiBus2(P0_5,P0_6,P0_4); // SPI bus, P5_1 = MOSI,
kidecha_rahul 17:4bf0775c1b38 338 // P5_2 = MISO, P5_0 = SCK
kidecha_rahul 17:4bf0775c1b38 339
kidecha_rahul 17:4bf0775c1b38 340 MAX30003 ecgAFE_2(spiBus2, P0_7); // New MAX30003 on spiBus, CS = P5_3
kidecha_rahul 17:4bf0775c1b38 341 ecg_config(ecgAFE_2); // Config ECG
kidecha_rahul 17:4bf0775c1b38 342
kidecha_rahul 17:4bf0775c1b38 343 // uint32_t ecgFIFO, readECGSamples, idx, ETAG[32], status;
kidecha_rahul 17:4bf0775c1b38 344 //int16_t ecgSample[32], x = 0;
kidecha_rahul 17:4bf0775c1b38 345
kidecha_rahul 17:4bf0775c1b38 346 ecgAFE_2.writeRegister( MAX30003::SYNCH , 0);
kidecha_rahul 17:4bf0775c1b38 347
kidecha_rahul 17:4bf0775c1b38 348 do {
kidecha_rahul 17:4bf0775c1b38 349 // Read back ECG samples from the FIFO
kidecha_rahul 17:4bf0775c1b38 350 if( ecgFIFOIntFlag_1) {
kidecha_rahul 17:4bf0775c1b38 351
kidecha_rahul 17:4bf0775c1b38 352 ecg_2 = 1;
kidecha_rahul 17:4bf0775c1b38 353 ecgFIFOIntFlag_1 = 0;
kidecha_rahul 17:4bf0775c1b38 354 status = ecgAFE_2.readRegister( MAX30003::STATUS ); // Read the STATUS register
kidecha_rahul 17:4bf0775c1b38 355
kidecha_rahul 17:4bf0775c1b38 356 // Check if EINT interrupt asserted
kidecha_rahul 17:4bf0775c1b38 357 if ( ( status & EINT_STATUS_MASK ) == EINT_STATUS_MASK ) {
kidecha_rahul 17:4bf0775c1b38 358
kidecha_rahul 17:4bf0775c1b38 359 readECGSamples = 0; // Reset sample counter
kidecha_rahul 17:4bf0775c1b38 360
kidecha_rahul 17:4bf0775c1b38 361 do {
kidecha_rahul 17:4bf0775c1b38 362 ecgFIFO = ecgAFE_2.readRegister( MAX30003::ECG_FIFO ); // Read FIFO
kidecha_rahul 17:4bf0775c1b38 363 ecgSample[readECGSamples] = ecgFIFO >> 8; // Isolate voltage data
kidecha_rahul 17:4bf0775c1b38 364 ETAG[readECGSamples] = ( ecgFIFO >> 3 ) & ETAG_BITS_MASK; // Isolate ETAG
kidecha_rahul 17:4bf0775c1b38 365 readECGSamples++;
kidecha_rahul 17:4bf0775c1b38 366 // Increment sample counter
kidecha_rahul 17:4bf0775c1b38 367
kidecha_rahul 17:4bf0775c1b38 368 // Check that sample is not last sample in FIFO
kidecha_rahul 17:4bf0775c1b38 369 } while ( ETAG[readECGSamples-1] == FIFO_VALID_SAMPLE_MASK ||
kidecha_rahul 17:4bf0775c1b38 370 ETAG[readECGSamples-1] == FIFO_FAST_SAMPLE_MASK );
kidecha_rahul 17:4bf0775c1b38 371
kidecha_rahul 17:4bf0775c1b38 372 // Check if FIFO has overflowed
kidecha_rahul 17:4bf0775c1b38 373 if( ETAG[readECGSamples - 1] == FIFO_OVF_MASK ){
kidecha_rahul 17:4bf0775c1b38 374 ecgAFE_2.writeRegister( MAX30003::FIFO_RST , 0); // Reset FIFO
kidecha_rahul 17:4bf0775c1b38 375 gLed = 1;//notifies the user that an over flow occured
kidecha_rahul 17:4bf0775c1b38 376 }
kidecha_rahul 17:4bf0775c1b38 377
kidecha_rahul 17:4bf0775c1b38 378 if (flip)
kidecha_rahul 17:4bf0775c1b38 379 {
kidecha_rahul 17:4bf0775c1b38 380 sampleps = 12;
kidecha_rahul 17:4bf0775c1b38 381 //printf("Flipped 12\r\n");
kidecha_rahul 17:4bf0775c1b38 382 }
kidecha_rahul 17:4bf0775c1b38 383 else
kidecha_rahul 17:4bf0775c1b38 384 {
kidecha_rahul 17:4bf0775c1b38 385 sampleps = 13;
kidecha_rahul 17:4bf0775c1b38 386 // printf("Flipped 13\r\n");
kidecha_rahul 17:4bf0775c1b38 387 }
kidecha_rahul 17:4bf0775c1b38 388
kidecha_rahul 17:4bf0775c1b38 389
kidecha_rahul 17:4bf0775c1b38 390 // Print results
kidecha_rahul 17:4bf0775c1b38 391 for( idx = 0; idx < readECGSamples; idx++ )
kidecha_rahul 17:4bf0775c1b38 392 {
kidecha_rahul 17:4bf0775c1b38 393 //pc.printf("%6d\r\n", ecgSample[idx]);
parthsagar2010 9:24ecf16eab0f 394 ecgSample_1sec[onesec_counter] = ecgSample[idx];
parthsagar2010 10:54aa50490b15 395
parthsagar2010 10:54aa50490b15 396 cksm_1 = ecgSample[idx] & 0xff;
parthsagar2010 10:54aa50490b15 397 cksm_2 = (ecgSample[idx] >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 398 checksum_ += cksm_1 + cksm_2;
kidecha_rahul 17:4bf0775c1b38 399 onesec_counter++;
kidecha_rahul 17:4bf0775c1b38 400
kidecha_rahul 17:4bf0775c1b38 401 }
kidecha_rahul 17:4bf0775c1b38 402 gLed = ! gLed;
kidecha_rahul 17:4bf0775c1b38 403 x++;
kidecha_rahul 17:4bf0775c1b38 404 //if (x==100)
kidecha_rahul 17:4bf0775c1b38 405 //ecg_config_off(ecgAFE);
kidecha_rahul 17:4bf0775c1b38 406 }
coreyharris 0:38c49bc37c7c 407 }
kidecha_rahul 17:4bf0775c1b38 408 }while(x<50);
kidecha_rahul 17:4bf0775c1b38 409 ecg_config_off(ecgAFE_2);
kidecha_rahul 17:4bf0775c1b38 410 gLed = ~gLed;
kidecha_rahul 17:4bf0775c1b38 411 x=0;
kidecha_rahul 17:4bf0775c1b38 412
coreyharris 0:38c49bc37c7c 413 }
coreyharris 0:38c49bc37c7c 414 }
coreyharris 0:38c49bc37c7c 415
coreyharris 0:38c49bc37c7c 416
coreyharris 0:38c49bc37c7c 417
coreyharris 0:38c49bc37c7c 418
coreyharris 0:38c49bc37c7c 419 void ecg_config(MAX30003& ecgAFE) {
coreyharris 0:38c49bc37c7c 420
coreyharris 1:86843c27cc81 421 // Reset ECG to clear registers
coreyharris 1:86843c27cc81 422 ecgAFE.writeRegister( MAX30003::SW_RST , 0);
coreyharris 0:38c49bc37c7c 423
coreyharris 1:86843c27cc81 424 // General config register setting
coreyharris 1:86843c27cc81 425 MAX30003::GeneralConfiguration_u CNFG_GEN_r;
coreyharris 3:420d5efbd967 426 CNFG_GEN_r.bits.en_ecg = 1; // Enable ECG channel
coreyharris 3:420d5efbd967 427 CNFG_GEN_r.bits.rbiasn = 1; // Enable resistive bias on negative input
coreyharris 3:420d5efbd967 428 CNFG_GEN_r.bits.rbiasp = 1; // Enable resistive bias on positive input
coreyharris 3:420d5efbd967 429 CNFG_GEN_r.bits.en_rbias = 1; // Enable resistive bias
coreyharris 3:420d5efbd967 430 CNFG_GEN_r.bits.imag = 2; // Current magnitude = 10nA
coreyharris 3:420d5efbd967 431 CNFG_GEN_r.bits.en_dcloff = 1; // Enable DC lead-off detection
parthsagar2010 12:10b49ad3c492 432 //CNFG_GEN_r.bits.fmstr = 1; //125 sps FMSTR 1
coreyharris 1:86843c27cc81 433 ecgAFE.writeRegister( MAX30003::CNFG_GEN , CNFG_GEN_r.all);
coreyharris 1:86843c27cc81 434
coreyharris 1:86843c27cc81 435
coreyharris 1:86843c27cc81 436 // ECG Config register setting
coreyharris 1:86843c27cc81 437 MAX30003::ECGConfiguration_u CNFG_ECG_r;
coreyharris 3:420d5efbd967 438 CNFG_ECG_r.bits.dlpf = 1; // Digital LPF cutoff = 40Hz
coreyharris 3:420d5efbd967 439 CNFG_ECG_r.bits.dhpf = 1; // Digital HPF cutoff = 0.5Hz
coreyharris 3:420d5efbd967 440 CNFG_ECG_r.bits.gain = 3; // ECG gain = 160V/V
coreyharris 3:420d5efbd967 441 CNFG_ECG_r.bits.rate = 2; // Sample rate = 128 sps
coreyharris 1:86843c27cc81 442 ecgAFE.writeRegister( MAX30003::CNFG_ECG , CNFG_ECG_r.all);
coreyharris 1:86843c27cc81 443
coreyharris 1:86843c27cc81 444
coreyharris 1:86843c27cc81 445 //R-to-R configuration
coreyharris 1:86843c27cc81 446 MAX30003::RtoR1Configuration_u CNFG_RTOR_r;
coreyharris 3:420d5efbd967 447 CNFG_RTOR_r.bits.en_rtor = 1; // Enable R-to-R detection
coreyharris 1:86843c27cc81 448 ecgAFE.writeRegister( MAX30003::CNFG_RTOR1 , CNFG_RTOR_r.all);
coreyharris 1:86843c27cc81 449
coreyharris 1:86843c27cc81 450
coreyharris 1:86843c27cc81 451 //Manage interrupts register setting
coreyharris 1:86843c27cc81 452 MAX30003::ManageInterrupts_u MNG_INT_r;
coreyharris 3:420d5efbd967 453 MNG_INT_r.bits.efit = 0b00011; // Assert EINT w/ 4 unread samples
coreyharris 3:420d5efbd967 454 MNG_INT_r.bits.clr_rrint = 0b01; // Clear R-to-R on RTOR reg. read back
coreyharris 1:86843c27cc81 455 ecgAFE.writeRegister( MAX30003::MNGR_INT , MNG_INT_r.all);
coreyharris 0:38c49bc37c7c 456
coreyharris 0:38c49bc37c7c 457
coreyharris 1:86843c27cc81 458 //Enable interrupts register setting
coreyharris 1:86843c27cc81 459 MAX30003::EnableInterrupts_u EN_INT_r;
coreyharris 5:f8d1f651bef5 460 EN_INT_r.all = 0;
coreyharris 3:420d5efbd967 461 EN_INT_r.bits.en_eint = 1; // Enable EINT interrupt
coreyharris 4:06e258ff0b97 462 EN_INT_r.bits.en_rrint = 0; // Disable R-to-R interrupt
coreyharris 3:420d5efbd967 463 EN_INT_r.bits.intb_type = 3; // Open-drain NMOS with internal pullup
coreyharris 1:86843c27cc81 464 ecgAFE.writeRegister( MAX30003::EN_INT , EN_INT_r.all);
coreyharris 1:86843c27cc81 465
coreyharris 1:86843c27cc81 466
coreyharris 1:86843c27cc81 467 //Dyanmic modes config
coreyharris 1:86843c27cc81 468 MAX30003::ManageDynamicModes_u MNG_DYN_r;
coreyharris 3:420d5efbd967 469 MNG_DYN_r.bits.fast = 0; // Fast recovery mode disabled
coreyharris 1:86843c27cc81 470 ecgAFE.writeRegister( MAX30003::MNGR_DYN , MNG_DYN_r.all);
coreyharris 5:f8d1f651bef5 471
coreyharris 5:f8d1f651bef5 472 // MUX Config
coreyharris 5:f8d1f651bef5 473 MAX30003::MuxConfiguration_u CNFG_MUX_r;
coreyharris 5:f8d1f651bef5 474 CNFG_MUX_r.bits.openn = 0; // Connect ECGN to AFE channel
coreyharris 5:f8d1f651bef5 475 CNFG_MUX_r.bits.openp = 0; // Connect ECGP to AFE channel
coreyharris 5:f8d1f651bef5 476 ecgAFE.writeRegister( MAX30003::CNFG_EMUX , CNFG_MUX_r.all);
coreyharris 1:86843c27cc81 477
coreyharris 1:86843c27cc81 478 return;
coreyharris 0:38c49bc37c7c 479 }
coreyharris 0:38c49bc37c7c 480
kidecha_rahul 17:4bf0775c1b38 481
kidecha_rahul 17:4bf0775c1b38 482 void ecg_config_off(MAX30003& ecgAFE)
kidecha_rahul 17:4bf0775c1b38 483 {
kidecha_rahul 17:4bf0775c1b38 484 // General config register setting
kidecha_rahul 17:4bf0775c1b38 485 MAX30003::GeneralConfiguration_u CNFG_GEN_r;
kidecha_rahul 17:4bf0775c1b38 486 CNFG_GEN_r.bits.en_ecg = 0; // Enable ECG channel
kidecha_rahul 17:4bf0775c1b38 487 // CNFG_GEN_r.bits.rbiasn = 1; // Enable resistive bias on negative input
kidecha_rahul 17:4bf0775c1b38 488 // CNFG_GEN_r.bits.rbiasp = 1; // Enable resistive bias on positive input
kidecha_rahul 17:4bf0775c1b38 489 // CNFG_GEN_r.bits.en_rbias = 1; // Enable resistive bias
kidecha_rahul 17:4bf0775c1b38 490 // CNFG_GEN_r.bits.imag = 2; // Current magnitude = 10nA
kidecha_rahul 17:4bf0775c1b38 491 // CNFG_GEN_r.bits.en_dcloff = 1; // Enable DC lead-off detection
kidecha_rahul 17:4bf0775c1b38 492 ecgAFE.writeRegister( MAX30003::CNFG_GEN , CNFG_GEN_r.all);
kidecha_rahul 17:4bf0775c1b38 493 }