MH / Mbed OS MAX30003WING_monitorhealth_customboard_L

final

Dependencies:   MAX30003 max32630fthr DS1307

main.cpp@26:c41e561a02de, 2021-12-21 (annotated)

Committer:
parthsagar2010
Date:
Tue Dec 21 01:17:08 2021 +0000
Revision:
26:c41e561a02de
Parent:
25:06ba30a29754
Child:
27:3b45b47d735d
k

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 25:06ba30a29754 13 //#define SDA P3_4
kidecha_rahul 25:06ba30a29754 14 //#define SCL P3_5
kidecha_rahul 24:98332ec40aff 15
kidecha_rahul 24:98332ec40aff 16
kidecha_rahul 25:06ba30a29754 17 //#define I2C_SDA P5_7
kidecha_rahul 25:06ba30a29754 18 //#define I2C_SCL P6_0
kidecha_rahul 24:98332ec40aff 19
kidecha_rahul 25:06ba30a29754 20 //Ds3231 rtc(SDA, SCL);
kidecha_rahul 24:98332ec40aff 21
kidecha_rahul 22:07eec382c267 22 //Timer timer_fast;
kidecha_rahul 23:288c5d1babd1 23 Timer t;
coreyharris 0:38c49bc37c7c 24 MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
kidecha_rahul 23:288c5d1babd1 25
kidecha_rahul 23:288c5d1babd1 26 void task_fast(void);
kidecha_rahul 18:101042d225ef 27 //DigitalOut ledA(LED2);
kidecha_rahul 23:288c5d1babd1 28
kidecha_rahul 25:06ba30a29754 29 DigitalOut S0(P0_4);
kidecha_rahul 25:06ba30a29754 30 DigitalOut S1(P0_5);
kidecha_rahul 23:288c5d1babd1 31 //DigitalOut S2(P7_2);
kidecha_rahul 23:288c5d1babd1 32 //DigitalOut S3(P7_2);
kidecha_rahul 19:7a084dc2f09d 33
kidecha_rahul 25:06ba30a29754 34 // Input pins
kidecha_rahul 25:06ba30a29754 35 DigitalIn A(P1_3); //P6_3
kidecha_rahul 25:06ba30a29754 36 DigitalIn B(P1_5); //P1_5
kidecha_rahul 25:06ba30a29754 37 DigitalIn C(P1_4); //P1_4
kidecha_rahul 25:06ba30a29754 38 //DigitalIn D(6_3); //P6_3 for hardware RTC
kidecha_rahul 25:06ba30a29754 39
kidecha_rahul 25:06ba30a29754 40 const float battery_max = 4.20; //maximum voltage of battery
kidecha_rahul 25:06ba30a29754 41 const float battery_min = 3.0; //minimum voltage of battery before shutdown
kidecha_rahul 25:06ba30a29754 42 uint8_t output = 0;
kidecha_rahul 25:06ba30a29754 43
kidecha_rahul 25:06ba30a29754 44 //AnalogIn ain_4(AIN_4);
kidecha_rahul 25:06ba30a29754 45 AnalogIn ain_5(AIN_5);
kidecha_rahul 21:193a10530741 46
kidecha_rahul 23:288c5d1babd1 47
coreyharris 0:38c49bc37c7c 48 void ecg_config(MAX30003 &ecgAFE);
parthsagar2010 11:300afaf2696b 49 //BufferedSerial pc(P3_1,P3_0); // Use USB debug probe for serial link static Unbuffered
parthsagar2010 15:0356e9454a60 50 static BufferedSerial pc(TARGET_TX_PIN, TARGET_RX_PIN, 230400); // 230400 works well
kidecha_rahul 23:288c5d1babd1 51
parthsagar2010 10:54aa50490b15 52 //Serial uart_1(USBTX, USBRX); // Use USB debug probe for serial link static Unbuffered
parthsagar2010 10:54aa50490b15 53 //
parthsagar2010 10:54aa50490b15 54 //Serial pc(P3_1,P3_0);
coreyharris 0:38c49bc37c7c 55 volatile bool ecgFIFOIntFlag = 0;
kidecha_rahul 23:288c5d1babd1 56 volatile bool timerflag = 0;
kidecha_rahul 23:288c5d1babd1 57
parthsagar2010 11:300afaf2696b 58 FileHandle *mbed::mbed_override_console(int fd)
parthsagar2010 11:300afaf2696b 59 {
parthsagar2010 11:300afaf2696b 60 return &pc;
parthsagar2010 11:300afaf2696b 61 }
kidecha_rahul 23:288c5d1babd1 62
parthsagar2010 8:6b9359f81cc0 63 void ecgFIFO_callback_1() { // Triggered when the ECG FIFO is about to be full
coreyharris 0:38c49bc37c7c 64
coreyharris 0:38c49bc37c7c 65 ecgFIFOIntFlag = 1;
coreyharris 0:38c49bc37c7c 66 }
kidecha_rahul 23:288c5d1babd1 67
kidecha_rahul 23:288c5d1babd1 68 time_t asUnixTime(int year, int mon, int mday, int hour, int min, int sec) {
kidecha_rahul 23:288c5d1babd1 69 struct tm t;
kidecha_rahul 23:288c5d1babd1 70 t.tm_year = year - 1900;
kidecha_rahul 23:288c5d1babd1 71 t.tm_mon = mon - 1; // convert to 0 based month
kidecha_rahul 23:288c5d1babd1 72 t.tm_mday = mday;
kidecha_rahul 23:288c5d1babd1 73 t.tm_hour = hour;
kidecha_rahul 23:288c5d1babd1 74 t.tm_min = min;
kidecha_rahul 23:288c5d1babd1 75 t.tm_sec = sec;
kidecha_rahul 23:288c5d1babd1 76 t.tm_isdst = -1; // Is Daylight saving time on? 1 = yes, 0 = no, -1 = unknown
kidecha_rahul 23:288c5d1babd1 77
kidecha_rahul 23:288c5d1babd1 78 return mktime(&t); // returns seconds elapsed since January 1, 1970 (begin of the Epoch)
kidecha_rahul 23:288c5d1babd1 79 }
parthsagar2010 11:300afaf2696b 80 int main(void)
coreyharris 3:420d5efbd967 81 {
kidecha_rahul 23:288c5d1babd1 82 uint16_t tic=0;
kidecha_rahul 23:288c5d1babd1 83
parthsagar2010 11:300afaf2696b 84 // Constants
coreyharris 4:06e258ff0b97 85 const int EINT_STATUS_MASK = 1 << 23;
coreyharris 6:86ac850c718d 86 const int FIFO_OVF_MASK = 0x7;
coreyharris 6:86ac850c718d 87 const int FIFO_VALID_SAMPLE_MASK = 0x0;
coreyharris 6:86ac850c718d 88 const int FIFO_FAST_SAMPLE_MASK = 0x1;
coreyharris 6:86ac850c718d 89 const int ETAG_BITS_MASK = 0x7;
kidecha_rahul 17:f0008ebb1040 90
kidecha_rahul 23:288c5d1babd1 91 // timer_fast.start();
kidecha_rahul 25:06ba30a29754 92 DigitalOut RGBr(P1_2);
kidecha_rahul 25:06ba30a29754 93 DigitalOut RGBg(P1_1);
kidecha_rahul 25:06ba30a29754 94 DigitalOut RGBb(P1_0);
kidecha_rahul 25:06ba30a29754 95
kidecha_rahul 25:06ba30a29754 96 DigitalOut rLed(P0_6);
kidecha_rahul 25:06ba30a29754 97
kidecha_rahul 25:06ba30a29754 98 rLed=1;
kidecha_rahul 25:06ba30a29754 99
kidecha_rahul 25:06ba30a29754 100 S0=0;
kidecha_rahul 25:06ba30a29754 101 S1=0;
kidecha_rahul 25:06ba30a29754 102 RGBr=0;
kidecha_rahul 25:06ba30a29754 103 RGBg=1;
kidecha_rahul 25:06ba30a29754 104 RGBb=1;
kidecha_rahul 25:06ba30a29754 105
parthsagar2010 10:54aa50490b15 106 // pc.baud(9600);
coreyharris 3:420d5efbd967 107
parthsagar2010 11:300afaf2696b 108 //pc.set_baud(115200); // Baud rate = 115200
parthsagar2010 11:300afaf2696b 109 //pc.set_format(
parthsagar2010 11:300afaf2696b 110 // /* bits */ 8,
parthsagar2010 11:300afaf2696b 111 // /* parity */ BufferedSerial::None,
parthsagar2010 11:300afaf2696b 112 // /* stop bit */ 1 //1
parthsagar2010 11:300afaf2696b 113 //);
parthsagar2010 10:54aa50490b15 114 //uart_1.baud(115200);
kidecha_rahul 23:288c5d1babd1 115
kidecha_rahul 23:288c5d1babd1 116 //--------------------------------- ECG Initialization ---------------------------------------------//
coreyharris 1:86843c27cc81 117 InterruptIn ecgFIFO_int(P5_4); // Config P5_4 as int. in for the
parthsagar2010 8:6b9359f81cc0 118 ecgFIFO_int.fall(&ecgFIFO_callback_1); // ecg FIFO interrupt at falling edge
coreyharris 0:38c49bc37c7c 119
coreyharris 1:86843c27cc81 120 SPI spiBus(SPI2_MOSI, SPI2_MISO, SPI2_SCK); // SPI bus, P5_1 = MOSI,
coreyharris 1:86843c27cc81 121 // P5_2 = MISO, P5_0 = SCK
parthsagar2010 10:54aa50490b15 122
coreyharris 4:06e258ff0b97 123 MAX30003 ecgAFE(spiBus, P5_3); // New MAX30003 on spiBus, CS = P5_3
parthsagar2010 8:6b9359f81cc0 124
coreyharris 4:06e258ff0b97 125 ecg_config(ecgAFE); // Config ECG
parthsagar2010 12:10b49ad3c492 126
coreyharris 0:38c49bc37c7c 127
coreyharris 4:06e258ff0b97 128 ecgAFE.writeRegister( MAX30003::SYNCH , 0);
coreyharris 0:38c49bc37c7c 129
kidecha_rahul 23:288c5d1babd1 130 //-------------------------------------------------------------------------------------------------//
kidecha_rahul 23:288c5d1babd1 131
coreyharris 4:06e258ff0b97 132 uint32_t ecgFIFO, readECGSamples, idx, ETAG[32], status;
coreyharris 1:86843c27cc81 133 int16_t ecgSample[32];
parthsagar2010 9:24ecf16eab0f 134 //bool timerflag = false;
kidecha_rahul 23:288c5d1babd1 135 int16_t ecgSample_1sec[256];
kidecha_rahul 25:06ba30a29754 136 // uint8_t ecg_1 = 0;
kidecha_rahul 25:06ba30a29754 137 // uint8_t ecg_2 = 0;
parthsagar2010 10:54aa50490b15 138 uint16_t onesec_counter = 0;
parthsagar2010 10:54aa50490b15 139 uint16_t onesec_counter_temp = 0;
parthsagar2010 10:54aa50490b15 140
kidecha_rahul 22:07eec382c267 141 // int16_t sample = 300;
kidecha_rahul 23:288c5d1babd1 142 // uint8_t final[10];
parthsagar2010 12:10b49ad3c492 143
parthsagar2010 10:54aa50490b15 144 uint16_t checksum_ = 0;
parthsagar2010 10:54aa50490b15 145 uint16_t mod_checksum = 0;
parthsagar2010 10:54aa50490b15 146
parthsagar2010 10:54aa50490b15 147 uint8_t p_1 = 0;
parthsagar2010 10:54aa50490b15 148 uint8_t p_2 = 0;
parthsagar2010 10:54aa50490b15 149 uint8_t p_3 = 0;
parthsagar2010 10:54aa50490b15 150 uint8_t p_4 = 0;
kidecha_rahul 18:101042d225ef 151 // uint8_t channel_num= 1;
kidecha_rahul 20:2e999e6568c1 152 uint8_t channel_num[1]= {0};
parthsagar2010 10:54aa50490b15 153 uint8_t data_len_1 = 0;
parthsagar2010 10:54aa50490b15 154 uint8_t data_len_2 = 0;
parthsagar2010 12:10b49ad3c492 155 uint32_t packet_1 = 0;
parthsagar2010 10:54aa50490b15 156 uint8_t cksm_1 = 0;
parthsagar2010 10:54aa50490b15 157 uint8_t cksm_2 = 0;
parthsagar2010 26:c41e561a02de 158 //uint8_t header_device_id[3] = {0,0,210}; //OLD device ID
parthsagar2010 26:c41e561a02de 159 uint8_t header_device_id[3] = {0,0,12}; //
parthsagar2010 10:54aa50490b15 160 uint8_t header_packet_type[2] = {0,2};
kidecha_rahul 25:06ba30a29754 161 uint8_t battery_level[1] ={0};
parthsagar2010 10:54aa50490b15 162
parthsagar2010 10:54aa50490b15 163 uint8_t ending[5] = {'@','#','%','!','7'};
parthsagar2010 10:54aa50490b15 164
parthsagar2010 15:0356e9454a60 165 bool flip = true;
kidecha_rahul 23:288c5d1babd1 166 int sampleps = 0;
parthsagar2010 15:0356e9454a60 167
kidecha_rahul 25:06ba30a29754 168 char buf[30];
parthsagar2010 15:0356e9454a60 169 // pc.write("Welcome",8*sizeof(char));
parthsagar2010 15:0356e9454a60 170 // printf("In the main loop"); //printf("In the main loop");
kidecha_rahul 23:288c5d1babd1 171 bool flag_first = false;
kidecha_rahul 23:288c5d1babd1 172 bool timestamp_reader = false;
kidecha_rahul 17:f0008ebb1040 173
kidecha_rahul 17:f0008ebb1040 174
kidecha_rahul 23:288c5d1babd1 175 //---------------------------------software RTC Start---------------------------------------------//
kidecha_rahul 23:288c5d1babd1 176 do
kidecha_rahul 23:288c5d1babd1 177 {
kidecha_rahul 23:288c5d1babd1 178 if (pc.readable())
kidecha_rahul 23:288c5d1babd1 179 {
kidecha_rahul 23:288c5d1babd1 180 scanf("%s",buf);
kidecha_rahul 23:288c5d1babd1 181 //printf("The entered string is %s : \n ",buf);*/
kidecha_rahul 23:288c5d1babd1 182 // buf[20] = 1621297647;
kidecha_rahul 23:288c5d1babd1 183 packet_1 = atoi(buf);
kidecha_rahul 23:288c5d1babd1 184 set_time(packet_1);
parthsagar2010 12:10b49ad3c492 185
kidecha_rahul 23:288c5d1babd1 186 if ((packet_1 % 60) == 0)
kidecha_rahul 23:288c5d1babd1 187 {
kidecha_rahul 23:288c5d1babd1 188 for (int u = 0;u<3;u++)
kidecha_rahul 23:288c5d1babd1 189 {
kidecha_rahul 23:288c5d1babd1 190 if (pc.readable())
kidecha_rahul 23:288c5d1babd1 191 {
kidecha_rahul 23:288c5d1babd1 192 scanf("%s",buf);
kidecha_rahul 23:288c5d1babd1 193 printf("Entered the minute string %s : \n ",buf);
kidecha_rahul 23:288c5d1babd1 194
kidecha_rahul 23:288c5d1babd1 195 packet_1 = atoi(buf);
kidecha_rahul 23:288c5d1babd1 196 set_time(packet_1);
kidecha_rahul 23:288c5d1babd1 197 }
kidecha_rahul 23:288c5d1babd1 198 }
kidecha_rahul 23:288c5d1babd1 199 timestamp_reader = true;
kidecha_rahul 23:288c5d1babd1 200 }
kidecha_rahul 23:288c5d1babd1 201 else
kidecha_rahul 23:288c5d1babd1 202 {
kidecha_rahul 23:288c5d1babd1 203 //printf("The timestamp is not divisible by 60 \n");
kidecha_rahul 23:288c5d1babd1 204 }
kidecha_rahul 23:288c5d1babd1 205 flag_first = true;
kidecha_rahul 23:288c5d1babd1 206
kidecha_rahul 23:288c5d1babd1 207 }
kidecha_rahul 23:288c5d1babd1 208
kidecha_rahul 23:288c5d1babd1 209 } while (timestamp_reader==false); // take the third timestamp
kidecha_rahul 23:288c5d1babd1 210
kidecha_rahul 23:288c5d1babd1 211 //---------------------------------software RTC End---------------------------------------------//
kidecha_rahul 25:06ba30a29754 212 rLed=0;
kidecha_rahul 17:f0008ebb1040 213
parthsagar2010 16:520034b124b6 214 while(1)
parthsagar2010 9:24ecf16eab0f 215 {
kidecha_rahul 23:288c5d1babd1 216
kidecha_rahul 25:06ba30a29754 217 unsigned short raw;
kidecha_rahul 25:06ba30a29754 218 raw = ain_5.read_u16();
kidecha_rahul 25:06ba30a29754 219 float vin;
kidecha_rahul 25:06ba30a29754 220 vin = ((raw*5*1.2)/ 65535.0);
kidecha_rahul 25:06ba30a29754 221 output = ((vin - battery_min) / (battery_max - battery_min)) * 100;
kidecha_rahul 25:06ba30a29754 222
kidecha_rahul 25:06ba30a29754 223 if (output < 100)
kidecha_rahul 25:06ba30a29754 224 battery_level[0] = {output};
kidecha_rahul 25:06ba30a29754 225 else
kidecha_rahul 25:06ba30a29754 226 battery_level[0] ={99};
kidecha_rahul 25:06ba30a29754 227
kidecha_rahul 25:06ba30a29754 228 if ((onesec_counter>=125))
kidecha_rahul 23:288c5d1babd1 229 {
kidecha_rahul 23:288c5d1babd1 230 tic++;
kidecha_rahul 23:288c5d1babd1 231
kidecha_rahul 18:101042d225ef 232 pc.write((uint8_t *)header_device_id, sizeof(header_device_id)); // device ID
parthsagar2010 10:54aa50490b15 233
kidecha_rahul 18:101042d225ef 234 pc.write((uint8_t *)header_packet_type, sizeof(header_packet_type)); // packet type
kidecha_rahul 18:101042d225ef 235
kidecha_rahul 23:288c5d1babd1 236 time_t seconds = time(NULL);
kidecha_rahul 23:288c5d1babd1 237 packet_1 = seconds;
kidecha_rahul 23:288c5d1babd1 238
kidecha_rahul 17:f0008ebb1040 239 //time_t seconds = time(NULL); // if remove it the timestamp will be static
kidecha_rahul 23:288c5d1babd1 240 //packet_1 ++;
kidecha_rahul 23:288c5d1babd1 241 // printf("Time as seconds since January 1, 1970 = %d\n", packet_1);
parthsagar2010 10:54aa50490b15 242 p_1 = packet_1 & 0xff;
parthsagar2010 10:54aa50490b15 243 p_2 = (packet_1 >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 244 p_3 = (packet_1 >> 16) & 0xff;
parthsagar2010 10:54aa50490b15 245 p_4 = (packet_1 >> 24) & 0xff;
parthsagar2010 10:54aa50490b15 246 // checksum_ = checksum_ + (packet_1 & 0xffff) + ((packet_1 >> 16) & 0xffff) ;
parthsagar2010 10:54aa50490b15 247 checksum_ = checksum_ + p_1 + p_2 + p_3 + p_4 ;
parthsagar2010 10:54aa50490b15 248 uint8_t header_packet_id[4] = {p_4,p_3,p_2,p_1};
kidecha_rahul 18:101042d225ef 249 pc.write((uint8_t *)header_packet_id, sizeof(header_packet_id)); // packet ID
kidecha_rahul 18:101042d225ef 250
kidecha_rahul 18:101042d225ef 251
parthsagar2010 16:520034b124b6 252 pc.write((uint8_t *)channel_num, sizeof(channel_num));
kidecha_rahul 18:101042d225ef 253
kidecha_rahul 25:06ba30a29754 254 pc.write((uint8_t *)battery_level, sizeof(battery_level));
kidecha_rahul 25:06ba30a29754 255
parthsagar2010 10:54aa50490b15 256 onesec_counter_temp = onesec_counter * 2;
parthsagar2010 10:54aa50490b15 257 data_len_1 = onesec_counter_temp & 0xff;
parthsagar2010 10:54aa50490b15 258 data_len_2 = (onesec_counter_temp >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 259 checksum_ = checksum_ + data_len_1 + data_len_2;
parthsagar2010 10:54aa50490b15 260 //pc.write((uint32_t *)packet_1, sizeof(packet_1));
parthsagar2010 10:54aa50490b15 261 uint8_t header_ecg_datalen[2] = {data_len_2,data_len_1};
parthsagar2010 10:54aa50490b15 262 pc.write((uint8_t *)header_ecg_datalen, sizeof(header_ecg_datalen));
kidecha_rahul 18:101042d225ef 263
parthsagar2010 10:54aa50490b15 264 mod_checksum = checksum_ % 65536 ;
parthsagar2010 10:54aa50490b15 265 cksm_1 = mod_checksum & 0xff;
parthsagar2010 10:54aa50490b15 266 cksm_2 = (mod_checksum >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 267 uint8_t header_ecg_checksum[2] = {cksm_2,cksm_1};
parthsagar2010 10:54aa50490b15 268 pc.write((uint8_t *)header_ecg_checksum, sizeof(header_ecg_checksum));
parthsagar2010 10:54aa50490b15 269
parthsagar2010 10:54aa50490b15 270 pc.write((int16_t *)ecgSample_1sec,onesec_counter * sizeof(int16_t));
parthsagar2010 15:0356e9454a60 271 // printf("Samples per second %d \n", (onesec_counter));
parthsagar2010 10:54aa50490b15 272 onesec_counter = 0;
parthsagar2010 10:54aa50490b15 273 // memset(ecgSample_1sec, 0, sizeof(ecgSample_1sec));
parthsagar2010 10:54aa50490b15 274
parthsagar2010 10:54aa50490b15 275 pc.write((uint8_t *)ending, sizeof(ending));
parthsagar2010 10:54aa50490b15 276 checksum_ = 0;
parthsagar2010 15:0356e9454a60 277 //t.stop();
parthsagar2010 11:300afaf2696b 278 // auto us = t.elapsed_time().count();
parthsagar2010 15:0356e9454a60 279 // float time_taken = us/1000000;
parthsagar2010 15:0356e9454a60 280 // printf("Timer time: %lu ms \n", (time_taken*100));
parthsagar2010 15:0356e9454a60 281 // t.reset();
parthsagar2010 15:0356e9454a60 282 // timer_fast.reset();
kidecha_rahul 19:7a084dc2f09d 283
kidecha_rahul 23:288c5d1babd1 284
parthsagar2010 26:c41e561a02de 285 if (tic==60) //C1
kidecha_rahul 19:7a084dc2f09d 286 {
kidecha_rahul 19:7a084dc2f09d 287 S0=1;
kidecha_rahul 19:7a084dc2f09d 288 S1=0;
kidecha_rahul 25:06ba30a29754 289 RGBr=1;
kidecha_rahul 25:06ba30a29754 290 RGBg=0;
kidecha_rahul 25:06ba30a29754 291 RGBb=1;
kidecha_rahul 20:2e999e6568c1 292 channel_num[0]= {1};
kidecha_rahul 19:7a084dc2f09d 293 }
parthsagar2010 26:c41e561a02de 294 if (tic==120) //C2
kidecha_rahul 19:7a084dc2f09d 295 {
kidecha_rahul 19:7a084dc2f09d 296 S0=0;
kidecha_rahul 19:7a084dc2f09d 297 S1=1;
kidecha_rahul 25:06ba30a29754 298 RGBr=1;
kidecha_rahul 25:06ba30a29754 299 RGBg=1;
kidecha_rahul 25:06ba30a29754 300 RGBb=0;
kidecha_rahul 20:2e999e6568c1 301 channel_num[0]= {2};
kidecha_rahul 19:7a084dc2f09d 302 }
kidecha_rahul 19:7a084dc2f09d 303
parthsagar2010 26:c41e561a02de 304 if (tic==180) // C0
kidecha_rahul 19:7a084dc2f09d 305 {
kidecha_rahul 19:7a084dc2f09d 306 S0=0;
kidecha_rahul 19:7a084dc2f09d 307 S1=0;
kidecha_rahul 25:06ba30a29754 308 RGBr=0;
kidecha_rahul 25:06ba30a29754 309 RGBg=1;
kidecha_rahul 25:06ba30a29754 310 RGBb=1;
kidecha_rahul 20:2e999e6568c1 311 channel_num[0]= {0};
kidecha_rahul 23:288c5d1babd1 312 tic=0;}
kidecha_rahul 23:288c5d1babd1 313
kidecha_rahul 21:193a10530741 314
kidecha_rahul 23:288c5d1babd1 315 // for channel selection
kidecha_rahul 23:288c5d1babd1 316
kidecha_rahul 25:06ba30a29754 317 if (A==0) //
parthsagar2010 26:c41e561a02de 318 {tic=185;
kidecha_rahul 22:07eec382c267 319 S0=0;
kidecha_rahul 22:07eec382c267 320 S1=0;
kidecha_rahul 25:06ba30a29754 321 RGBr=0;
kidecha_rahul 25:06ba30a29754 322 RGBg=1;
kidecha_rahul 25:06ba30a29754 323 RGBb=1;
kidecha_rahul 25:06ba30a29754 324
kidecha_rahul 23:288c5d1babd1 325 // S2=0;
kidecha_rahul 23:288c5d1babd1 326 // S3=0;
kidecha_rahul 22:07eec382c267 327 channel_num[0]= {0};}
kidecha_rahul 22:07eec382c267 328
kidecha_rahul 23:288c5d1babd1 329 if (B==0) //
parthsagar2010 26:c41e561a02de 330 {tic=190;
kidecha_rahul 21:193a10530741 331 S0=1;
kidecha_rahul 21:193a10530741 332 S1=0;
kidecha_rahul 25:06ba30a29754 333 RGBr=1;
kidecha_rahul 25:06ba30a29754 334 RGBg=0;
kidecha_rahul 25:06ba30a29754 335 RGBb=1;
kidecha_rahul 25:06ba30a29754 336
kidecha_rahul 23:288c5d1babd1 337 // S2=0;
kidecha_rahul 23:288c5d1babd1 338 // S3=0;
kidecha_rahul 22:07eec382c267 339 channel_num[0]= {1};}
kidecha_rahul 22:07eec382c267 340
kidecha_rahul 23:288c5d1babd1 341 if (C==0) //
parthsagar2010 26:c41e561a02de 342 {tic=200;
kidecha_rahul 21:193a10530741 343 S0=0;
kidecha_rahul 21:193a10530741 344 S1=1;
kidecha_rahul 25:06ba30a29754 345 RGBr=1;
kidecha_rahul 25:06ba30a29754 346 RGBg=1;
kidecha_rahul 25:06ba30a29754 347 RGBb=0;
kidecha_rahul 25:06ba30a29754 348
kidecha_rahul 23:288c5d1babd1 349 // S2=0;
kidecha_rahul 23:288c5d1babd1 350 // S3=0;
kidecha_rahul 25:06ba30a29754 351 channel_num[0]= {2};}
kidecha_rahul 23:288c5d1babd1 352
kidecha_rahul 19:7a084dc2f09d 353
parthsagar2010 9:24ecf16eab0f 354 }
coreyharris 4:06e258ff0b97 355 // Read back ECG samples from the FIFO
kidecha_rahul 23:288c5d1babd1 356 else if((ecgFIFOIntFlag==1))// && (timerflag == 0))
parthsagar2010 9:24ecf16eab0f 357 {
coreyharris 2:812d40f1853d 358
coreyharris 5:f8d1f651bef5 359 ecgFIFOIntFlag = 0;
coreyharris 4:06e258ff0b97 360 status = ecgAFE.readRegister( MAX30003::STATUS ); // Read the STATUS register
coreyharris 2:812d40f1853d 361
coreyharris 3:420d5efbd967 362 // Check if EINT interrupt asserted
parthsagar2010 9:24ecf16eab0f 363 if ( ( status & EINT_STATUS_MASK ) == EINT_STATUS_MASK )
parthsagar2010 9:24ecf16eab0f 364 {
coreyharris 3:420d5efbd967 365
coreyharris 4:06e258ff0b97 366 readECGSamples = 0; // Reset sample counter
coreyharris 3:420d5efbd967 367
coreyharris 2:812d40f1853d 368 do {
coreyharris 6:86ac850c718d 369 ecgFIFO = ecgAFE.readRegister( MAX30003::ECG_FIFO ); // Read FIFO
coreyharris 4:06e258ff0b97 370 ecgSample[readECGSamples] = ecgFIFO >> 8; // Isolate voltage data
parthsagar2010 10:54aa50490b15 371 ecgSample[readECGSamples] = ((ecgSample[readECGSamples]<<8)&0xFF00)|((ecgSample[readECGSamples]>>8)&0x00FF);
coreyharris 6:86ac850c718d 372 ETAG[readECGSamples] = ( ecgFIFO >> 3 ) & ETAG_BITS_MASK; // Isolate ETAG
coreyharris 4:06e258ff0b97 373 readECGSamples++; // Increment sample counter
coreyharris 3:420d5efbd967 374
coreyharris 3:420d5efbd967 375 // Check that sample is not last sample in FIFO
coreyharris 6:86ac850c718d 376 } while ( ETAG[readECGSamples-1] == FIFO_VALID_SAMPLE_MASK ||
coreyharris 6:86ac850c718d 377 ETAG[readECGSamples-1] == FIFO_FAST_SAMPLE_MASK );
coreyharris 2:812d40f1853d 378
coreyharris 3:420d5efbd967 379 // Check if FIFO has overflowed
parthsagar2010 9:24ecf16eab0f 380 if( ETAG[readECGSamples - 1] == FIFO_OVF_MASK )
parthsagar2010 9:24ecf16eab0f 381 {
coreyharris 3:420d5efbd967 382 ecgAFE.writeRegister( MAX30003::FIFO_RST , 0); // Reset FIFO
johnGreeneMaxim 7:cf0855a0450a 383 rLed = 1;//notifies the user that an over flow occured
coreyharris 3:420d5efbd967 384 }
parthsagar2010 10:54aa50490b15 385 //uint8_t header_ecg_checksum[2] = {'%','%'};
parthsagar2010 10:54aa50490b15 386 //pc.write((uint8_t *)header_ecg_checksum, sizeof(header_ecg_checksum));
coreyharris 3:420d5efbd967 387
parthsagar2010 10:54aa50490b15 388 //pc.write((int16_t *)ecgSample,readECGSamples * sizeof(int16_t ));
parthsagar2010 10:54aa50490b15 389 //memcpy(ecgSample_1sec , ecgSample, sizeof(ecgSample));
parthsagar2010 10:54aa50490b15 390
parthsagar2010 10:54aa50490b15 391 //memcpy(ecgSample_1sec + (onesec_counter * sizeof(int16_t)), ecgSample, sizeof(ecgSample));
parthsagar2010 15:0356e9454a60 392
parthsagar2010 15:0356e9454a60 393 if (flip)
parthsagar2010 15:0356e9454a60 394 {
parthsagar2010 15:0356e9454a60 395 sampleps = 12;
parthsagar2010 15:0356e9454a60 396 //printf("Flipped 12\r\n");
parthsagar2010 15:0356e9454a60 397 }
parthsagar2010 15:0356e9454a60 398 else
parthsagar2010 15:0356e9454a60 399 {
parthsagar2010 15:0356e9454a60 400 sampleps = 13;
parthsagar2010 15:0356e9454a60 401 // printf("Flipped 13\r\n");
parthsagar2010 15:0356e9454a60 402 }
parthsagar2010 15:0356e9454a60 403
parthsagar2010 15:0356e9454a60 404 for( idx = 0; idx < sampleps; idx++ )
parthsagar2010 9:24ecf16eab0f 405 {
parthsagar2010 9:24ecf16eab0f 406 //pc.printf("%6d\r\n", ecgSample[idx]);
parthsagar2010 9:24ecf16eab0f 407 ecgSample_1sec[onesec_counter] = ecgSample[idx];
parthsagar2010 10:54aa50490b15 408
parthsagar2010 10:54aa50490b15 409 cksm_1 = ecgSample[idx] & 0xff;
parthsagar2010 10:54aa50490b15 410 cksm_2 = (ecgSample[idx] >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 411 checksum_ += cksm_1 + cksm_2;
parthsagar2010 9:24ecf16eab0f 412 onesec_counter++;
coreyharris 6:86ac850c718d 413 }
parthsagar2010 15:0356e9454a60 414 flip =!flip;
parthsagar2010 15:0356e9454a60 415 rLed = ! rLed;
coreyharris 0:38c49bc37c7c 416 }
parthsagar2010 10:54aa50490b15 417
coreyharris 0:38c49bc37c7c 418 }
coreyharris 0:38c49bc37c7c 419 }
coreyharris 0:38c49bc37c7c 420 }
kidecha_rahul 23:288c5d1babd1 421
kidecha_rahul 23:288c5d1babd1 422
kidecha_rahul 23:288c5d1babd1 423
kidecha_rahul 23:288c5d1babd1 424
coreyharris 0:38c49bc37c7c 425 void ecg_config(MAX30003& ecgAFE) {
kidecha_rahul 23:288c5d1babd1 426
coreyharris 1:86843c27cc81 427 // Reset ECG to clear registers
coreyharris 1:86843c27cc81 428 ecgAFE.writeRegister( MAX30003::SW_RST , 0);
coreyharris 0:38c49bc37c7c 429
coreyharris 1:86843c27cc81 430 // General config register setting
coreyharris 1:86843c27cc81 431 MAX30003::GeneralConfiguration_u CNFG_GEN_r;
coreyharris 3:420d5efbd967 432 CNFG_GEN_r.bits.en_ecg = 1; // Enable ECG channel
coreyharris 3:420d5efbd967 433 CNFG_GEN_r.bits.rbiasn = 1; // Enable resistive bias on negative input
coreyharris 3:420d5efbd967 434 CNFG_GEN_r.bits.rbiasp = 1; // Enable resistive bias on positive input
coreyharris 3:420d5efbd967 435 CNFG_GEN_r.bits.en_rbias = 1; // Enable resistive bias
coreyharris 3:420d5efbd967 436 CNFG_GEN_r.bits.imag = 2; // Current magnitude = 10nA
coreyharris 3:420d5efbd967 437 CNFG_GEN_r.bits.en_dcloff = 1; // Enable DC lead-off detection
parthsagar2010 12:10b49ad3c492 438 //CNFG_GEN_r.bits.fmstr = 1; //125 sps FMSTR 1
coreyharris 1:86843c27cc81 439 ecgAFE.writeRegister( MAX30003::CNFG_GEN , CNFG_GEN_r.all);
coreyharris 1:86843c27cc81 440
coreyharris 1:86843c27cc81 441
coreyharris 1:86843c27cc81 442 // ECG Config register setting
coreyharris 1:86843c27cc81 443 MAX30003::ECGConfiguration_u CNFG_ECG_r;
coreyharris 3:420d5efbd967 444 CNFG_ECG_r.bits.dlpf = 1; // Digital LPF cutoff = 40Hz
coreyharris 3:420d5efbd967 445 CNFG_ECG_r.bits.dhpf = 1; // Digital HPF cutoff = 0.5Hz
coreyharris 3:420d5efbd967 446 CNFG_ECG_r.bits.gain = 3; // ECG gain = 160V/V
kidecha_rahul 23:288c5d1babd1 447 CNFG_ECG_r.bits.rate = 2; // Sample rate = 128 sps
coreyharris 1:86843c27cc81 448 ecgAFE.writeRegister( MAX30003::CNFG_ECG , CNFG_ECG_r.all);
coreyharris 1:86843c27cc81 449
coreyharris 1:86843c27cc81 450
coreyharris 1:86843c27cc81 451 //R-to-R configuration
coreyharris 1:86843c27cc81 452 MAX30003::RtoR1Configuration_u CNFG_RTOR_r;
coreyharris 3:420d5efbd967 453 CNFG_RTOR_r.bits.en_rtor = 1; // Enable R-to-R detection
coreyharris 1:86843c27cc81 454 ecgAFE.writeRegister( MAX30003::CNFG_RTOR1 , CNFG_RTOR_r.all);
coreyharris 1:86843c27cc81 455
coreyharris 1:86843c27cc81 456
coreyharris 1:86843c27cc81 457 //Manage interrupts register setting
coreyharris 1:86843c27cc81 458 MAX30003::ManageInterrupts_u MNG_INT_r;
coreyharris 3:420d5efbd967 459 MNG_INT_r.bits.efit = 0b00011; // Assert EINT w/ 4 unread samples
coreyharris 3:420d5efbd967 460 MNG_INT_r.bits.clr_rrint = 0b01; // Clear R-to-R on RTOR reg. read back
coreyharris 1:86843c27cc81 461 ecgAFE.writeRegister( MAX30003::MNGR_INT , MNG_INT_r.all);
coreyharris 0:38c49bc37c7c 462
coreyharris 0:38c49bc37c7c 463
coreyharris 1:86843c27cc81 464 //Enable interrupts register setting
coreyharris 1:86843c27cc81 465 MAX30003::EnableInterrupts_u EN_INT_r;
coreyharris 5:f8d1f651bef5 466 EN_INT_r.all = 0;
coreyharris 3:420d5efbd967 467 EN_INT_r.bits.en_eint = 1; // Enable EINT interrupt
coreyharris 4:06e258ff0b97 468 EN_INT_r.bits.en_rrint = 0; // Disable R-to-R interrupt
coreyharris 3:420d5efbd967 469 EN_INT_r.bits.intb_type = 3; // Open-drain NMOS with internal pullup
coreyharris 1:86843c27cc81 470 ecgAFE.writeRegister( MAX30003::EN_INT , EN_INT_r.all);
coreyharris 1:86843c27cc81 471
coreyharris 1:86843c27cc81 472
coreyharris 1:86843c27cc81 473 //Dyanmic modes config
coreyharris 1:86843c27cc81 474 MAX30003::ManageDynamicModes_u MNG_DYN_r;
coreyharris 3:420d5efbd967 475 MNG_DYN_r.bits.fast = 0; // Fast recovery mode disabled
coreyharris 1:86843c27cc81 476 ecgAFE.writeRegister( MAX30003::MNGR_DYN , MNG_DYN_r.all);
coreyharris 5:f8d1f651bef5 477
coreyharris 5:f8d1f651bef5 478 // MUX Config
coreyharris 5:f8d1f651bef5 479 MAX30003::MuxConfiguration_u CNFG_MUX_r;
coreyharris 5:f8d1f651bef5 480 CNFG_MUX_r.bits.openn = 0; // Connect ECGN to AFE channel
coreyharris 5:f8d1f651bef5 481 CNFG_MUX_r.bits.openp = 0; // Connect ECGP to AFE channel
coreyharris 5:f8d1f651bef5 482 ecgAFE.writeRegister( MAX30003::CNFG_EMUX , CNFG_MUX_r.all);
coreyharris 1:86843c27cc81 483
coreyharris 1:86843c27cc81 484 return;
coreyharris 0:38c49bc37c7c 485 }
kidecha_rahul 23:288c5d1babd1 486