MH / Mbed OS MAX30003WING_monitorhealth_customboard_L

final

Dependencies:   MAX30003 max32630fthr DS1307

main.cpp@15:0356e9454a60, 2021-03-11 (annotated)

Committer:
parthsagar2010
Date:
Thu Mar 11 21:22:19 2021 +0000
Revision:
15:0356e9454a60
Parent:
14:1a643834b33b
Child:
16:520034b124b6
To_Ahmed

Who changed what in which revision?

UserRevisionLine numberNew contents of line
coreyharris 6:86ac850c718d 1
parthsagar2010 8:6b9359f81cc0 2 #include "MAX30003.h"
coreyharris 0:38c49bc37c7c 3 #include "mbed.h"
coreyharris 0:38c49bc37c7c 4 #include "max32630fthr.h"
parthsagar2010 9:24ecf16eab0f 5 #include "ds1307.h"
parthsagar2010 11:300afaf2696b 6 //#include <BufferedSerial.h>
parthsagar2010 10:54aa50490b15 7 #include <string>
parthsagar2010 10:54aa50490b15 8 //#include <Serial.h>
parthsagar2010 11:300afaf2696b 9
parthsagar2010 11:300afaf2696b 10 #define TARGET_TX_PIN P3_1
parthsagar2010 11:300afaf2696b 11 #define TARGET_RX_PIN P3_0
parthsagar2010 11:300afaf2696b 12
parthsagar2010 9:24ecf16eab0f 13 Timer timer_fast;
parthsagar2010 10:54aa50490b15 14 Timer t;
coreyharris 0:38c49bc37c7c 15 MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
coreyharris 0:38c49bc37c7c 16
parthsagar2010 9:24ecf16eab0f 17 void task_fast(void);
parthsagar2010 9:24ecf16eab0f 18 DigitalOut ledA(LED2);
parthsagar2010 13:0e7bbc06083f 19
coreyharris 0:38c49bc37c7c 20 void ecg_config(MAX30003 &ecgAFE);
parthsagar2010 11:300afaf2696b 21 //BufferedSerial pc(P3_1,P3_0); // Use USB debug probe for serial link static Unbuffered
parthsagar2010 15:0356e9454a60 22 static BufferedSerial pc(TARGET_TX_PIN, TARGET_RX_PIN, 230400); // 230400 works well
parthsagar2010 11:300afaf2696b 23
parthsagar2010 10:54aa50490b15 24 //Serial uart_1(USBTX, USBRX); // Use USB debug probe for serial link static Unbuffered
parthsagar2010 10:54aa50490b15 25 //
parthsagar2010 10:54aa50490b15 26 //Serial pc(P3_1,P3_0);
coreyharris 0:38c49bc37c7c 27 volatile bool ecgFIFOIntFlag = 0;
parthsagar2010 9:24ecf16eab0f 28 volatile bool timerflag = 0;
parthsagar2010 11:300afaf2696b 29
parthsagar2010 11:300afaf2696b 30 FileHandle *mbed::mbed_override_console(int fd)
parthsagar2010 11:300afaf2696b 31 {
parthsagar2010 11:300afaf2696b 32 return &pc;
parthsagar2010 11:300afaf2696b 33 }
parthsagar2010 11:300afaf2696b 34
parthsagar2010 8:6b9359f81cc0 35 void ecgFIFO_callback_1() { // Triggered when the ECG FIFO is about to be full
coreyharris 0:38c49bc37c7c 36
coreyharris 0:38c49bc37c7c 37 ecgFIFOIntFlag = 1;
coreyharris 0:38c49bc37c7c 38 }
coreyharris 0:38c49bc37c7c 39
parthsagar2010 12:10b49ad3c492 40 time_t asUnixTime(int year, int mon, int mday, int hour, int min, int sec) {
parthsagar2010 12:10b49ad3c492 41 struct tm t;
parthsagar2010 12:10b49ad3c492 42 t.tm_year = year - 1900;
parthsagar2010 12:10b49ad3c492 43 t.tm_mon = mon - 1; // convert to 0 based month
parthsagar2010 12:10b49ad3c492 44 t.tm_mday = mday;
parthsagar2010 12:10b49ad3c492 45 t.tm_hour = hour;
parthsagar2010 12:10b49ad3c492 46 t.tm_min = min;
parthsagar2010 12:10b49ad3c492 47 t.tm_sec = sec;
parthsagar2010 12:10b49ad3c492 48 t.tm_isdst = -1; // Is Daylight saving time on? 1 = yes, 0 = no, -1 = unknown
parthsagar2010 12:10b49ad3c492 49
parthsagar2010 12:10b49ad3c492 50 return mktime(&t); // returns seconds elapsed since January 1, 1970 (begin of the Epoch)
parthsagar2010 12:10b49ad3c492 51 }
parthsagar2010 11:300afaf2696b 52 int main(void)
coreyharris 3:420d5efbd967 53 {
parthsagar2010 11:300afaf2696b 54 // Constants
coreyharris 4:06e258ff0b97 55 const int EINT_STATUS_MASK = 1 << 23;
coreyharris 6:86ac850c718d 56 const int FIFO_OVF_MASK = 0x7;
coreyharris 6:86ac850c718d 57 const int FIFO_VALID_SAMPLE_MASK = 0x0;
coreyharris 6:86ac850c718d 58 const int FIFO_FAST_SAMPLE_MASK = 0x1;
coreyharris 6:86ac850c718d 59 const int ETAG_BITS_MASK = 0x7;
parthsagar2010 9:24ecf16eab0f 60 timer_fast.start();
parthsagar2010 15:0356e9454a60 61 DigitalOut rLed(LED2, LED_ON);
parthsagar2010 10:54aa50490b15 62 // pc.baud(9600);
coreyharris 3:420d5efbd967 63
parthsagar2010 11:300afaf2696b 64 //pc.set_baud(115200); // Baud rate = 115200
parthsagar2010 11:300afaf2696b 65 //pc.set_format(
parthsagar2010 11:300afaf2696b 66 // /* bits */ 8,
parthsagar2010 11:300afaf2696b 67 // /* parity */ BufferedSerial::None,
parthsagar2010 11:300afaf2696b 68 // /* stop bit */ 1 //1
parthsagar2010 11:300afaf2696b 69 //);
parthsagar2010 10:54aa50490b15 70 //uart_1.baud(115200);
coreyharris 1:86843c27cc81 71 InterruptIn ecgFIFO_int(P5_4); // Config P5_4 as int. in for the
parthsagar2010 8:6b9359f81cc0 72 ecgFIFO_int.fall(&ecgFIFO_callback_1); // ecg FIFO interrupt at falling edge
coreyharris 0:38c49bc37c7c 73
coreyharris 1:86843c27cc81 74 SPI spiBus(SPI2_MOSI, SPI2_MISO, SPI2_SCK); // SPI bus, P5_1 = MOSI,
coreyharris 1:86843c27cc81 75 // P5_2 = MISO, P5_0 = SCK
parthsagar2010 10:54aa50490b15 76
coreyharris 4:06e258ff0b97 77 MAX30003 ecgAFE(spiBus, P5_3); // New MAX30003 on spiBus, CS = P5_3
parthsagar2010 8:6b9359f81cc0 78
coreyharris 4:06e258ff0b97 79 ecg_config(ecgAFE); // Config ECG
parthsagar2010 12:10b49ad3c492 80
coreyharris 0:38c49bc37c7c 81
coreyharris 4:06e258ff0b97 82 ecgAFE.writeRegister( MAX30003::SYNCH , 0);
coreyharris 0:38c49bc37c7c 83
coreyharris 4:06e258ff0b97 84 uint32_t ecgFIFO, readECGSamples, idx, ETAG[32], status;
coreyharris 1:86843c27cc81 85 int16_t ecgSample[32];
parthsagar2010 9:24ecf16eab0f 86 //bool timerflag = false;
parthsagar2010 10:54aa50490b15 87 int16_t ecgSample_1sec[200];
parthsagar2010 10:54aa50490b15 88 uint8_t ecg_1 = 0;
parthsagar2010 10:54aa50490b15 89 uint8_t ecg_2 = 0;
parthsagar2010 10:54aa50490b15 90 uint16_t onesec_counter = 0;
parthsagar2010 10:54aa50490b15 91 uint16_t onesec_counter_temp = 0;
parthsagar2010 10:54aa50490b15 92
parthsagar2010 9:24ecf16eab0f 93 int16_t sample = 300;
parthsagar2010 10:54aa50490b15 94 uint8_t final[10];
parthsagar2010 12:10b49ad3c492 95
parthsagar2010 10:54aa50490b15 96 uint16_t checksum_ = 0;
parthsagar2010 10:54aa50490b15 97 uint16_t mod_checksum = 0;
parthsagar2010 10:54aa50490b15 98
parthsagar2010 10:54aa50490b15 99 uint8_t p_1 = 0;
parthsagar2010 10:54aa50490b15 100 uint8_t p_2 = 0;
parthsagar2010 10:54aa50490b15 101 uint8_t p_3 = 0;
parthsagar2010 10:54aa50490b15 102 uint8_t p_4 = 0;
parthsagar2010 10:54aa50490b15 103
parthsagar2010 10:54aa50490b15 104 uint8_t data_len_1 = 0;
parthsagar2010 10:54aa50490b15 105 uint8_t data_len_2 = 0;
parthsagar2010 12:10b49ad3c492 106 uint32_t packet_1 = 0;
parthsagar2010 10:54aa50490b15 107 uint8_t cksm_1 = 0;
parthsagar2010 10:54aa50490b15 108 uint8_t cksm_2 = 0;
parthsagar2010 10:54aa50490b15 109 uint8_t header_device_id[3] = {0,0,210};
parthsagar2010 10:54aa50490b15 110 uint8_t header_packet_type[2] = {0,2};
parthsagar2010 10:54aa50490b15 111
parthsagar2010 10:54aa50490b15 112 uint8_t ending[5] = {'@','#','%','!','7'};
parthsagar2010 10:54aa50490b15 113
parthsagar2010 15:0356e9454a60 114 bool flip = true;
parthsagar2010 15:0356e9454a60 115 int sampleps = 0;
parthsagar2010 15:0356e9454a60 116
parthsagar2010 11:300afaf2696b 117 char buf[20];
parthsagar2010 15:0356e9454a60 118 // pc.write("Welcome",8*sizeof(char));
parthsagar2010 15:0356e9454a60 119 // printf("In the main loop"); //printf("In the main loop");
parthsagar2010 11:300afaf2696b 120 bool flag_first = false;
parthsagar2010 15:0356e9454a60 121 bool timestamp_reader = false;
parthsagar2010 11:300afaf2696b 122 do
parthsagar2010 11:300afaf2696b 123 {
parthsagar2010 12:10b49ad3c492 124 if (pc.readable())
parthsagar2010 12:10b49ad3c492 125 {
parthsagar2010 11:300afaf2696b 126 scanf("%s",buf);
parthsagar2010 15:0356e9454a60 127 //printf("The entered string is %s : \n ",buf);
parthsagar2010 12:10b49ad3c492 128
parthsagar2010 12:10b49ad3c492 129 packet_1 = atoi(buf);
parthsagar2010 12:10b49ad3c492 130 set_time(packet_1);
parthsagar2010 12:10b49ad3c492 131
parthsagar2010 15:0356e9454a60 132 if ((packet_1 % 60) == 0)
parthsagar2010 15:0356e9454a60 133 {
parthsagar2010 15:0356e9454a60 134 /* for (int u = 0;u<3;u++)
parthsagar2010 15:0356e9454a60 135 {
parthsagar2010 15:0356e9454a60 136 if (pc.readable())
parthsagar2010 15:0356e9454a60 137 {
parthsagar2010 15:0356e9454a60 138 scanf("%s",buf);
parthsagar2010 15:0356e9454a60 139 printf("Entered the minute string %s : \n ",buf);
parthsagar2010 15:0356e9454a60 140
parthsagar2010 15:0356e9454a60 141 packet_1 = atoi(buf);
parthsagar2010 15:0356e9454a60 142 set_time(packet_1);
parthsagar2010 15:0356e9454a60 143 }
parthsagar2010 15:0356e9454a60 144 }*/
parthsagar2010 15:0356e9454a60 145 timestamp_reader = true;
parthsagar2010 15:0356e9454a60 146 }
parthsagar2010 15:0356e9454a60 147 else
parthsagar2010 15:0356e9454a60 148 {
parthsagar2010 15:0356e9454a60 149 //printf("The timestamp is not divisible by 60 \n");
parthsagar2010 15:0356e9454a60 150 }
parthsagar2010 12:10b49ad3c492 151 //flag_first = true;
coreyharris 2:812d40f1853d 152
parthsagar2010 11:300afaf2696b 153 }
parthsagar2010 11:300afaf2696b 154
parthsagar2010 15:0356e9454a60 155 }while (timestamp_reader==false); // take the third timestamp
parthsagar2010 11:300afaf2696b 156 while(1)
parthsagar2010 9:24ecf16eab0f 157 {
parthsagar2010 10:54aa50490b15 158
parthsagar2010 9:24ecf16eab0f 159
parthsagar2010 15:0356e9454a60 160 if ((onesec_counter>=125))
parthsagar2010 9:24ecf16eab0f 161 {
parthsagar2010 11:300afaf2696b 162 //t.start();
parthsagar2010 10:54aa50490b15 163 //ledA = !ledA;
parthsagar2010 12:10b49ad3c492 164
parthsagar2010 10:54aa50490b15 165
parthsagar2010 10:54aa50490b15 166 pc.write((uint8_t *)header_device_id, sizeof(header_device_id));
parthsagar2010 10:54aa50490b15 167
parthsagar2010 10:54aa50490b15 168 pc.write((uint8_t *)header_packet_type, sizeof(header_packet_type));
parthsagar2010 12:10b49ad3c492 169 time_t seconds = time(NULL);
parthsagar2010 12:10b49ad3c492 170 packet_1 = seconds;
parthsagar2010 12:10b49ad3c492 171 //packet_1 ++;
parthsagar2010 15:0356e9454a60 172 // printf("Time as seconds since January 1, 1970 = %d\n", packet_1);
parthsagar2010 10:54aa50490b15 173 p_1 = packet_1 & 0xff;
parthsagar2010 10:54aa50490b15 174 p_2 = (packet_1 >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 175 p_3 = (packet_1 >> 16) & 0xff;
parthsagar2010 10:54aa50490b15 176 p_4 = (packet_1 >> 24) & 0xff;
parthsagar2010 10:54aa50490b15 177 // checksum_ = checksum_ + (packet_1 & 0xffff) + ((packet_1 >> 16) & 0xffff) ;
parthsagar2010 10:54aa50490b15 178 checksum_ = checksum_ + p_1 + p_2 + p_3 + p_4 ;
parthsagar2010 10:54aa50490b15 179 uint8_t header_packet_id[4] = {p_4,p_3,p_2,p_1};
parthsagar2010 10:54aa50490b15 180 pc.write((uint8_t *)header_packet_id, sizeof(header_packet_id));
parthsagar2010 10:54aa50490b15 181 onesec_counter_temp = onesec_counter * 2;
parthsagar2010 10:54aa50490b15 182 data_len_1 = onesec_counter_temp & 0xff;
parthsagar2010 10:54aa50490b15 183 data_len_2 = (onesec_counter_temp >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 184 checksum_ = checksum_ + data_len_1 + data_len_2;
parthsagar2010 10:54aa50490b15 185 //pc.write((uint32_t *)packet_1, sizeof(packet_1));
parthsagar2010 10:54aa50490b15 186 uint8_t header_ecg_datalen[2] = {data_len_2,data_len_1};
parthsagar2010 10:54aa50490b15 187 pc.write((uint8_t *)header_ecg_datalen, sizeof(header_ecg_datalen));
parthsagar2010 10:54aa50490b15 188 mod_checksum = checksum_ % 65536 ;
parthsagar2010 10:54aa50490b15 189 cksm_1 = mod_checksum & 0xff;
parthsagar2010 10:54aa50490b15 190 cksm_2 = (mod_checksum >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 191 uint8_t header_ecg_checksum[2] = {cksm_2,cksm_1};
parthsagar2010 10:54aa50490b15 192 pc.write((uint8_t *)header_ecg_checksum, sizeof(header_ecg_checksum));
parthsagar2010 10:54aa50490b15 193
parthsagar2010 10:54aa50490b15 194 pc.write((int16_t *)ecgSample_1sec,onesec_counter * sizeof(int16_t));
parthsagar2010 15:0356e9454a60 195 // printf("Samples per second %d \n", (onesec_counter));
parthsagar2010 10:54aa50490b15 196 onesec_counter = 0;
parthsagar2010 10:54aa50490b15 197 // memset(ecgSample_1sec, 0, sizeof(ecgSample_1sec));
parthsagar2010 10:54aa50490b15 198
parthsagar2010 10:54aa50490b15 199 pc.write((uint8_t *)ending, sizeof(ending));
parthsagar2010 10:54aa50490b15 200 checksum_ = 0;
parthsagar2010 15:0356e9454a60 201 //t.stop();
parthsagar2010 11:300afaf2696b 202 // auto us = t.elapsed_time().count();
parthsagar2010 15:0356e9454a60 203 // float time_taken = us/1000000;
parthsagar2010 15:0356e9454a60 204 // printf("Timer time: %lu ms \n", (time_taken*100));
parthsagar2010 15:0356e9454a60 205 // t.reset();
parthsagar2010 15:0356e9454a60 206 // timer_fast.reset();
parthsagar2010 9:24ecf16eab0f 207 }
coreyharris 4:06e258ff0b97 208 // Read back ECG samples from the FIFO
parthsagar2010 9:24ecf16eab0f 209 else if( (ecgFIFOIntFlag==1))// && (timerflag == 0))
parthsagar2010 9:24ecf16eab0f 210 {
coreyharris 2:812d40f1853d 211
coreyharris 5:f8d1f651bef5 212 ecgFIFOIntFlag = 0;
coreyharris 4:06e258ff0b97 213 status = ecgAFE.readRegister( MAX30003::STATUS ); // Read the STATUS register
coreyharris 2:812d40f1853d 214
coreyharris 3:420d5efbd967 215 // Check if EINT interrupt asserted
parthsagar2010 9:24ecf16eab0f 216 if ( ( status & EINT_STATUS_MASK ) == EINT_STATUS_MASK )
parthsagar2010 9:24ecf16eab0f 217 {
coreyharris 3:420d5efbd967 218
coreyharris 4:06e258ff0b97 219 readECGSamples = 0; // Reset sample counter
coreyharris 3:420d5efbd967 220
coreyharris 2:812d40f1853d 221 do {
coreyharris 6:86ac850c718d 222 ecgFIFO = ecgAFE.readRegister( MAX30003::ECG_FIFO ); // Read FIFO
coreyharris 4:06e258ff0b97 223 ecgSample[readECGSamples] = ecgFIFO >> 8; // Isolate voltage data
parthsagar2010 10:54aa50490b15 224 ecgSample[readECGSamples] = ((ecgSample[readECGSamples]<<8)&0xFF00)|((ecgSample[readECGSamples]>>8)&0x00FF);
coreyharris 6:86ac850c718d 225 ETAG[readECGSamples] = ( ecgFIFO >> 3 ) & ETAG_BITS_MASK; // Isolate ETAG
coreyharris 4:06e258ff0b97 226 readECGSamples++; // Increment sample counter
coreyharris 3:420d5efbd967 227
coreyharris 3:420d5efbd967 228 // Check that sample is not last sample in FIFO
coreyharris 6:86ac850c718d 229 } while ( ETAG[readECGSamples-1] == FIFO_VALID_SAMPLE_MASK ||
coreyharris 6:86ac850c718d 230 ETAG[readECGSamples-1] == FIFO_FAST_SAMPLE_MASK );
coreyharris 2:812d40f1853d 231
coreyharris 3:420d5efbd967 232 // Check if FIFO has overflowed
parthsagar2010 9:24ecf16eab0f 233 if( ETAG[readECGSamples - 1] == FIFO_OVF_MASK )
parthsagar2010 9:24ecf16eab0f 234 {
coreyharris 3:420d5efbd967 235 ecgAFE.writeRegister( MAX30003::FIFO_RST , 0); // Reset FIFO
johnGreeneMaxim 7:cf0855a0450a 236 rLed = 1;//notifies the user that an over flow occured
coreyharris 3:420d5efbd967 237 }
parthsagar2010 10:54aa50490b15 238 //uint8_t header_ecg_checksum[2] = {'%','%'};
parthsagar2010 10:54aa50490b15 239 //pc.write((uint8_t *)header_ecg_checksum, sizeof(header_ecg_checksum));
coreyharris 3:420d5efbd967 240
parthsagar2010 10:54aa50490b15 241 //pc.write((int16_t *)ecgSample,readECGSamples * sizeof(int16_t ));
parthsagar2010 10:54aa50490b15 242 //memcpy(ecgSample_1sec , ecgSample, sizeof(ecgSample));
parthsagar2010 10:54aa50490b15 243
parthsagar2010 10:54aa50490b15 244 //memcpy(ecgSample_1sec + (onesec_counter * sizeof(int16_t)), ecgSample, sizeof(ecgSample));
parthsagar2010 15:0356e9454a60 245
parthsagar2010 15:0356e9454a60 246 if (flip)
parthsagar2010 15:0356e9454a60 247 {
parthsagar2010 15:0356e9454a60 248 sampleps = 12;
parthsagar2010 15:0356e9454a60 249 //printf("Flipped 12\r\n");
parthsagar2010 15:0356e9454a60 250 }
parthsagar2010 15:0356e9454a60 251 else
parthsagar2010 15:0356e9454a60 252 {
parthsagar2010 15:0356e9454a60 253 sampleps = 13;
parthsagar2010 15:0356e9454a60 254 // printf("Flipped 13\r\n");
parthsagar2010 15:0356e9454a60 255 }
parthsagar2010 15:0356e9454a60 256
parthsagar2010 15:0356e9454a60 257 for( idx = 0; idx < sampleps; idx++ )
parthsagar2010 9:24ecf16eab0f 258 {
parthsagar2010 9:24ecf16eab0f 259 //pc.printf("%6d\r\n", ecgSample[idx]);
parthsagar2010 9:24ecf16eab0f 260 ecgSample_1sec[onesec_counter] = ecgSample[idx];
parthsagar2010 10:54aa50490b15 261
parthsagar2010 10:54aa50490b15 262 cksm_1 = ecgSample[idx] & 0xff;
parthsagar2010 10:54aa50490b15 263 cksm_2 = (ecgSample[idx] >> 8) & 0xff;
parthsagar2010 10:54aa50490b15 264 checksum_ += cksm_1 + cksm_2;
parthsagar2010 9:24ecf16eab0f 265 onesec_counter++;
coreyharris 6:86ac850c718d 266 }
parthsagar2010 15:0356e9454a60 267 flip =!flip;
parthsagar2010 15:0356e9454a60 268 rLed = ! rLed;
coreyharris 0:38c49bc37c7c 269 }
parthsagar2010 10:54aa50490b15 270
coreyharris 0:38c49bc37c7c 271 }
coreyharris 0:38c49bc37c7c 272 }
coreyharris 0:38c49bc37c7c 273 }
coreyharris 0:38c49bc37c7c 274
coreyharris 0:38c49bc37c7c 275
coreyharris 0:38c49bc37c7c 276
coreyharris 0:38c49bc37c7c 277
coreyharris 0:38c49bc37c7c 278 void ecg_config(MAX30003& ecgAFE) {
coreyharris 0:38c49bc37c7c 279
coreyharris 1:86843c27cc81 280 // Reset ECG to clear registers
coreyharris 1:86843c27cc81 281 ecgAFE.writeRegister( MAX30003::SW_RST , 0);
coreyharris 0:38c49bc37c7c 282
coreyharris 1:86843c27cc81 283 // General config register setting
coreyharris 1:86843c27cc81 284 MAX30003::GeneralConfiguration_u CNFG_GEN_r;
coreyharris 3:420d5efbd967 285 CNFG_GEN_r.bits.en_ecg = 1; // Enable ECG channel
coreyharris 3:420d5efbd967 286 CNFG_GEN_r.bits.rbiasn = 1; // Enable resistive bias on negative input
coreyharris 3:420d5efbd967 287 CNFG_GEN_r.bits.rbiasp = 1; // Enable resistive bias on positive input
coreyharris 3:420d5efbd967 288 CNFG_GEN_r.bits.en_rbias = 1; // Enable resistive bias
coreyharris 3:420d5efbd967 289 CNFG_GEN_r.bits.imag = 2; // Current magnitude = 10nA
coreyharris 3:420d5efbd967 290 CNFG_GEN_r.bits.en_dcloff = 1; // Enable DC lead-off detection
parthsagar2010 12:10b49ad3c492 291 //CNFG_GEN_r.bits.fmstr = 1; //125 sps FMSTR 1
coreyharris 1:86843c27cc81 292 ecgAFE.writeRegister( MAX30003::CNFG_GEN , CNFG_GEN_r.all);
coreyharris 1:86843c27cc81 293
coreyharris 1:86843c27cc81 294
coreyharris 1:86843c27cc81 295 // ECG Config register setting
coreyharris 1:86843c27cc81 296 MAX30003::ECGConfiguration_u CNFG_ECG_r;
coreyharris 3:420d5efbd967 297 CNFG_ECG_r.bits.dlpf = 1; // Digital LPF cutoff = 40Hz
coreyharris 3:420d5efbd967 298 CNFG_ECG_r.bits.dhpf = 1; // Digital HPF cutoff = 0.5Hz
coreyharris 3:420d5efbd967 299 CNFG_ECG_r.bits.gain = 3; // ECG gain = 160V/V
coreyharris 3:420d5efbd967 300 CNFG_ECG_r.bits.rate = 2; // Sample rate = 128 sps
coreyharris 1:86843c27cc81 301 ecgAFE.writeRegister( MAX30003::CNFG_ECG , CNFG_ECG_r.all);
coreyharris 1:86843c27cc81 302
coreyharris 1:86843c27cc81 303
coreyharris 1:86843c27cc81 304 //R-to-R configuration
coreyharris 1:86843c27cc81 305 MAX30003::RtoR1Configuration_u CNFG_RTOR_r;
coreyharris 3:420d5efbd967 306 CNFG_RTOR_r.bits.en_rtor = 1; // Enable R-to-R detection
coreyharris 1:86843c27cc81 307 ecgAFE.writeRegister( MAX30003::CNFG_RTOR1 , CNFG_RTOR_r.all);
coreyharris 1:86843c27cc81 308
coreyharris 1:86843c27cc81 309
coreyharris 1:86843c27cc81 310 //Manage interrupts register setting
coreyharris 1:86843c27cc81 311 MAX30003::ManageInterrupts_u MNG_INT_r;
coreyharris 3:420d5efbd967 312 MNG_INT_r.bits.efit = 0b00011; // Assert EINT w/ 4 unread samples
coreyharris 3:420d5efbd967 313 MNG_INT_r.bits.clr_rrint = 0b01; // Clear R-to-R on RTOR reg. read back
coreyharris 1:86843c27cc81 314 ecgAFE.writeRegister( MAX30003::MNGR_INT , MNG_INT_r.all);
coreyharris 0:38c49bc37c7c 315
coreyharris 0:38c49bc37c7c 316
coreyharris 1:86843c27cc81 317 //Enable interrupts register setting
coreyharris 1:86843c27cc81 318 MAX30003::EnableInterrupts_u EN_INT_r;
coreyharris 5:f8d1f651bef5 319 EN_INT_r.all = 0;
coreyharris 3:420d5efbd967 320 EN_INT_r.bits.en_eint = 1; // Enable EINT interrupt
coreyharris 4:06e258ff0b97 321 EN_INT_r.bits.en_rrint = 0; // Disable R-to-R interrupt
coreyharris 3:420d5efbd967 322 EN_INT_r.bits.intb_type = 3; // Open-drain NMOS with internal pullup
coreyharris 1:86843c27cc81 323 ecgAFE.writeRegister( MAX30003::EN_INT , EN_INT_r.all);
coreyharris 1:86843c27cc81 324
coreyharris 1:86843c27cc81 325
coreyharris 1:86843c27cc81 326 //Dyanmic modes config
coreyharris 1:86843c27cc81 327 MAX30003::ManageDynamicModes_u MNG_DYN_r;
coreyharris 3:420d5efbd967 328 MNG_DYN_r.bits.fast = 0; // Fast recovery mode disabled
coreyharris 1:86843c27cc81 329 ecgAFE.writeRegister( MAX30003::MNGR_DYN , MNG_DYN_r.all);
coreyharris 5:f8d1f651bef5 330
coreyharris 5:f8d1f651bef5 331 // MUX Config
coreyharris 5:f8d1f651bef5 332 MAX30003::MuxConfiguration_u CNFG_MUX_r;
coreyharris 5:f8d1f651bef5 333 CNFG_MUX_r.bits.openn = 0; // Connect ECGN to AFE channel
coreyharris 5:f8d1f651bef5 334 CNFG_MUX_r.bits.openp = 0; // Connect ECGP to AFE channel
coreyharris 5:f8d1f651bef5 335 ecgAFE.writeRegister( MAX30003::CNFG_EMUX , CNFG_MUX_r.all);
coreyharris 1:86843c27cc81 336
coreyharris 1:86843c27cc81 337 return;
coreyharris 0:38c49bc37c7c 338 }
coreyharris 0:38c49bc37c7c 339