nikita teggi / Mbed 2 deprecated merged_code2_3rd_nov_2017

Changes done in ECG and BT

Dependencies:   SDFileSystem ds3231 eeprom_Nikita mbed testUniGraphic_150217

Fork of merged_code2_20sept_2017_4th_oct_2017 by nikita teggi

ecgg.cpp@1:8316c23ec6b9, 2017-01-30 (annotated)

Committer:
nikitateggi
Date:
Mon Jan 30 07:45:41 2017 +0000
Revision:
1:8316c23ec6b9
Child:
3:9a06c2bed650
POC code

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nikitateggi 1:8316c23ec6b9 1 /** ECG ADS1291 Test program.
nikitateggi 1:8316c23ec6b9 2 ADS1291 is a single channel ECG chip
nikitateggi 1:8316c23ec6b9 3 with a 24 bit Sigma-Delta ADC
nikitateggi 1:8316c23ec6b9 4 */
nikitateggi 1:8316c23ec6b9 5
nikitateggi 1:8316c23ec6b9 6 #include "mbed.h"
nikitateggi 1:8316c23ec6b9 7 //#include "timer.h"
nikitateggi 1:8316c23ec6b9 8 #include <string.h>
nikitateggi 1:8316c23ec6b9 9 #include <stdio.h>
nikitateggi 1:8316c23ec6b9 10 #include "ds3231.h"
nikitateggi 1:8316c23ec6b9 11 #include "SDFileSystem.h"
nikitateggi 1:8316c23ec6b9 12 #include "ecg_dec.h"
nikitateggi 1:8316c23ec6b9 13 #include "rtc.h"
nikitateggi 1:8316c23ec6b9 14 #include "sdcard.h"
nikitateggi 1:8316c23ec6b9 15 //#include "rtos.h"
nikitateggi 1:8316c23ec6b9 16
nikitateggi 1:8316c23ec6b9 17 //SPI SETTINGS
nikitateggi 1:8316c23ec6b9 18 #define baud_rate 115200
nikitateggi 1:8316c23ec6b9 19 #define freq 1000000
nikitateggi 1:8316c23ec6b9 20 #define bits 8
nikitateggi 1:8316c23ec6b9 21 #define mode 1
nikitateggi 1:8316c23ec6b9 22 #define loop 1000000
nikitateggi 1:8316c23ec6b9 23
nikitateggi 1:8316c23ec6b9 24 //PIN DECLARATIONS
nikitateggi 1:8316c23ec6b9 25 Serial pc(USBTX,USBRX);
nikitateggi 1:8316c23ec6b9 26 DigitalIn DRDY_BAR(PTC8);
nikitateggi 1:8316c23ec6b9 27 DigitalOut CHIPSEL_BAR(PTD0);
nikitateggi 1:8316c23ec6b9 28 DigitalOut ADS_START(PTC16);
nikitateggi 1:8316c23ec6b9 29 DigitalOut RESET_BAR(PTC17);
nikitateggi 1:8316c23ec6b9 30
nikitateggi 1:8316c23ec6b9 31 //FILE *fp = NULL;
nikitateggi 1:8316c23ec6b9 32
nikitateggi 1:8316c23ec6b9 33
nikitateggi 1:8316c23ec6b9 34 //unsigned char chk2= 0;
nikitateggi 1:8316c23ec6b9 35 float value = 0;
nikitateggi 1:8316c23ec6b9 36 unsigned int value1 = 0;
nikitateggi 1:8316c23ec6b9 37 unsigned int value2 = 0;
nikitateggi 1:8316c23ec6b9 38 unsigned int value3 = 0;
nikitateggi 1:8316c23ec6b9 39 unsigned int value4 = 0;
nikitateggi 1:8316c23ec6b9 40 unsigned int value5 = 0;
nikitateggi 1:8316c23ec6b9 41 unsigned int value6 = 0;
nikitateggi 1:8316c23ec6b9 42 unsigned int data1 = 0;
nikitateggi 1:8316c23ec6b9 43 unsigned int count = 0;
nikitateggi 1:8316c23ec6b9 44
nikitateggi 1:8316c23ec6b9 45 //static int32_t ecg_x[500];
nikitateggi 1:8316c23ec6b9 46 SPI mySpi(PIN_MOSI, PIN_MISO, PIN_SCLK) ; /* SPI is the spi function written in mbed and mySpi is the instance name*/
nikitateggi 1:8316c23ec6b9 47
nikitateggi 1:8316c23ec6b9 48 typedef void (*func_ptr)(void) ; /*creates typedef to function pointer, does not take any arguement and returns void*/
nikitateggi 1:8316c23ec6b9 49
nikitateggi 1:8316c23ec6b9 50 void doHelp(void) ;
nikitateggi 1:8316c23ec6b9 51 void doStatus(void) ;
nikitateggi 1:8316c23ec6b9 52 void doFreq(void) ;
nikitateggi 1:8316c23ec6b9 53 void doMode(void) ;
nikitateggi 1:8316c23ec6b9 54 void doBit(void) ;
nikitateggi 1:8316c23ec6b9 55 void doWrite(void) ;
nikitateggi 1:8316c23ec6b9 56 void doWrite2(void) ;
nikitateggi 1:8316c23ec6b9 57 void doRead(void) ;
nikitateggi 1:8316c23ec6b9 58 void doLoop(void) ;
nikitateggi 1:8316c23ec6b9 59 void setup(void);
nikitateggi 1:8316c23ec6b9 60 void testsetup(void);
nikitateggi 1:8316c23ec6b9 61 void ecgsetup(void);
nikitateggi 1:8316c23ec6b9 62 void regWrite(int,int);
nikitateggi 1:8316c23ec6b9 63 void cmdWrite(int);
nikitateggi 1:8316c23ec6b9 64 void regRead(int);
nikitateggi 1:8316c23ec6b9 65 void lpf_coef(void);
nikitateggi 1:8316c23ec6b9 66 float lpf( float coeff[5], float);
nikitateggi 1:8316c23ec6b9 67 void drdy_int(void);
nikitateggi 1:8316c23ec6b9 68 /*FILE *sd_openfile(char *buf);
nikitateggi 1:8316c23ec6b9 69 void sd_write (FILE *n,int value);
nikitateggi 1:8316c23ec6b9 70 void sd_close(FILE *n);
nikitateggi 1:8316c23ec6b9 71 time_t rtc_read();*/
nikitateggi 1:8316c23ec6b9 72
nikitateggi 1:8316c23ec6b9 73 typedef struct _cmd_func {
nikitateggi 1:8316c23ec6b9 74 char *name ;
nikitateggi 1:8316c23ec6b9 75 func_ptr func ;
nikitateggi 1:8316c23ec6b9 76 } cmd_func_type ;
nikitateggi 1:8316c23ec6b9 77
nikitateggi 1:8316c23ec6b9 78 cmd_func_type cmd_list[] = { /*"cmd_func_type cmd_list[]" is same as "struct cmd_list[]"*/
nikitateggi 1:8316c23ec6b9 79 {"help", doHelp},
nikitateggi 1:8316c23ec6b9 80 {"status", doStatus},
nikitateggi 1:8316c23ec6b9 81 {"freq", doFreq},
nikitateggi 1:8316c23ec6b9 82 {"mode", doMode},
nikitateggi 1:8316c23ec6b9 83 {"bit", doBit},
nikitateggi 1:8316c23ec6b9 84 {"write", doWrite},
nikitateggi 1:8316c23ec6b9 85 {"read", doRead},
nikitateggi 1:8316c23ec6b9 86 {"loop", doLoop},
nikitateggi 1:8316c23ec6b9 87 { 0, 0 }
nikitateggi 1:8316c23ec6b9 88 } ;
nikitateggi 1:8316c23ec6b9 89
nikitateggi 1:8316c23ec6b9 90 func_ptr getFunc(char *cmd) /*here "func_ptr is same as void*/
nikitateggi 1:8316c23ec6b9 91 {
nikitateggi 1:8316c23ec6b9 92 int i = 0 ;
nikitateggi 1:8316c23ec6b9 93 while(cmd_list[i].name != 0) {
nikitateggi 1:8316c23ec6b9 94 if (strcmp(cmd, cmd_list[i].name) == 0) {
nikitateggi 1:8316c23ec6b9 95 return(cmd_list[i].func) ; ;
nikitateggi 1:8316c23ec6b9 96 }
nikitateggi 1:8316c23ec6b9 97 i++ ;
nikitateggi 1:8316c23ec6b9 98 }
nikitateggi 1:8316c23ec6b9 99 return(0) ;
nikitateggi 1:8316c23ec6b9 100 }
nikitateggi 1:8316c23ec6b9 101
nikitateggi 1:8316c23ec6b9 102 void doHello()
nikitateggi 1:8316c23ec6b9 103 {
nikitateggi 1:8316c23ec6b9 104 printf("=== spi test program ===\n\r") ;
nikitateggi 1:8316c23ec6b9 105 printf("please set your terminal program\n\r") ;
nikitateggi 1:8316c23ec6b9 106 printf("local echo on\n\r") ;
nikitateggi 1:8316c23ec6b9 107 printf("\n\r") ;
nikitateggi 1:8316c23ec6b9 108 }
nikitateggi 1:8316c23ec6b9 109
nikitateggi 1:8316c23ec6b9 110 int ecg(int pid) {
nikitateggi 1:8316c23ec6b9 111 //time_t epoch_time;
nikitateggi 1:8316c23ec6b9 112 //int fp;
nikitateggi 1:8316c23ec6b9 113 int concatenate_value = 0;
nikitateggi 1:8316c23ec6b9 114
nikitateggi 1:8316c23ec6b9 115 //uint32_t ecg_buf[1500];
nikitateggi 1:8316c23ec6b9 116 //int32_t ecg_der[1500];
nikitateggi 1:8316c23ec6b9 117 //int buff1[15]= {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
nikitateggi 1:8316c23ec6b9 118 int32_t sample_sum; // static int32_t avg[1500];
nikitateggi 1:8316c23ec6b9 119 count = 0; int32_t fs = 500; int32_t w=0,w1=0;
nikitateggi 1:8316c23ec6b9 120 Timer t;
nikitateggi 1:8316c23ec6b9 121 unsigned char chk = 1;
nikitateggi 1:8316c23ec6b9 122 pc.baud(baud_rate);
nikitateggi 1:8316c23ec6b9 123 mySpi.frequency(freq) ;
nikitateggi 1:8316c23ec6b9 124 mySpi.format(bits, mode) ;
nikitateggi 1:8316c23ec6b9 125 // Ds3231 rtc(PTC11, PTC10); //sda,scl2yy
nikitateggi 1:8316c23ec6b9 126
nikitateggi 1:8316c23ec6b9 127
nikitateggi 1:8316c23ec6b9 128
nikitateggi 1:8316c23ec6b9 129 //Initialize ADS1291
nikitateggi 1:8316c23ec6b9 130 setup() ;
nikitateggi 1:8316c23ec6b9 131
nikitateggi 1:8316c23ec6b9 132 //Put device back in RDATAC mode
nikitateggi 1:8316c23ec6b9 133 cmdWrite(CMD_RDATAC) ;
nikitateggi 1:8316c23ec6b9 134 // printf("The device is in RDATAC mode\n");
nikitateggi 1:8316c23ec6b9 135 //Activate conversion, At this point DRDY should toggle
nikitateggi 1:8316c23ec6b9 136 ADS_START = 1;
nikitateggi 1:8316c23ec6b9 137
nikitateggi 1:8316c23ec6b9 138 // printf( "ADC noise data is= \n");
nikitateggi 1:8316c23ec6b9 139 for(int i=0;i<N_ERR;i++)
nikitateggi 1:8316c23ec6b9 140 {
nikitateggi 1:8316c23ec6b9 141 while(DRDY_BAR);
nikitateggi 1:8316c23ec6b9 142 doWrite() ;
nikitateggi 1:8316c23ec6b9 143 //printf( "ADC status is= %X %X %X\n", value1,value2,value3);
nikitateggi 1:8316c23ec6b9 144 concatenate_value = ((value4<< LSHIFT_16)|(value5 <<LSHIFT_8) |(value6));
nikitateggi 1:8316c23ec6b9 145 // printf( "%X\n", concatenate_value);
nikitateggi 1:8316c23ec6b9 146 }
nikitateggi 1:8316c23ec6b9 147
nikitateggi 1:8316c23ec6b9 148
nikitateggi 1:8316c23ec6b9 149 /*testsetup(); // To set the ADS1291 registers for internal test signal generation
nikitateggi 1:8316c23ec6b9 150 wait(0.2);
nikitateggi 1:8316c23ec6b9 151 cmdWrite(CMD_RDATAC) ;
nikitateggi 1:8316c23ec6b9 152 //printf("The device is in RDATAC mode\n");
nikitateggi 1:8316c23ec6b9 153 // printf("Test data is\n");
nikitateggi 1:8316c23ec6b9 154 ADS_START = 1;
nikitateggi 1:8316c23ec6b9 155 //printf("Test data is\n");
nikitateggi 1:8316c23ec6b9 156 sd_open_file();
nikitateggi 1:8316c23ec6b9 157
nikitateggi 1:8316c23ec6b9 158 for(int j=0;j<N_TEST;j++)
nikitateggi 1:8316c23ec6b9 159 {
nikitateggi 1:8316c23ec6b9 160 while(DRDY_BAR);
nikitateggi 1:8316c23ec6b9 161 doWrite() ;
nikitateggi 1:8316c23ec6b9 162 concatenate_value = ((value4<< LSHIFT_16)|(value5 <<LSHIFT_8) |(value6));
nikitateggi 1:8316c23ec6b9 163
nikitateggi 1:8316c23ec6b9 164 sd_write(concatenate_value);
nikitateggi 1:8316c23ec6b9 165 pc.printf("%d\n",concatenate_value);
nikitateggi 1:8316c23ec6b9 166 // fprintf(fp,"%d\n",concatenate_value) ;
nikitateggi 1:8316c23ec6b9 167 }
nikitateggi 1:8316c23ec6b9 168 sd_close();*/
nikitateggi 1:8316c23ec6b9 169
nikitateggi 1:8316c23ec6b9 170 ecgsetup(); // To set the ADS1291 registers for ECG signal generation
nikitateggi 1:8316c23ec6b9 171 // printf("\n Reading****");
nikitateggi 1:8316c23ec6b9 172 //DRDY_BAR1.enable_irq();
nikitateggi 1:8316c23ec6b9 173 cmdWrite(CMD_RDATAC) ;
nikitateggi 1:8316c23ec6b9 174 // printf("The device is in RDATAC mode\n");
nikitateggi 1:8316c23ec6b9 175 ADS_START = 1;
nikitateggi 1:8316c23ec6b9 176 chk = 1;
nikitateggi 1:8316c23ec6b9 177 t.start();
nikitateggi 1:8316c23ec6b9 178 sd_open_ECGfile(pid);
nikitateggi 1:8316c23ec6b9 179 for(int i=0; i<N_ECG; i++)
nikitateggi 1:8316c23ec6b9 180 {
nikitateggi 1:8316c23ec6b9 181 while(DRDY_BAR);
nikitateggi 1:8316c23ec6b9 182 doWrite() ;
nikitateggi 1:8316c23ec6b9 183 concatenate_value = ((value4<< 16)|(value5 <<8) |(value6));
nikitateggi 1:8316c23ec6b9 184 sd_write(concatenate_value);
nikitateggi 1:8316c23ec6b9 185 //printf( "%d\n", concatenate_value);
nikitateggi 1:8316c23ec6b9 186 }
nikitateggi 1:8316c23ec6b9 187 sd_close();
nikitateggi 1:8316c23ec6b9 188 t.stop();
nikitateggi 1:8316c23ec6b9 189 printf( "%f\n", t.read());
nikitateggi 1:8316c23ec6b9 190 /*
nikitateggi 1:8316c23ec6b9 191 // remove DC of ecg signal
nikitateggi 1:8316c23ec6b9 192 uint32_t ecg_mean=0, buf_length = 500;
nikitateggi 1:8316c23ec6b9 193 printf("DC removed\ ECG Data\n");
nikitateggi 1:8316c23ec6b9 194 for (int k=0 ; k<buf_length ; k++ )
nikitateggi 1:8316c23ec6b9 195 {ecg_mean = ecg_mean+ ecg_buf[k] ;
nikitateggi 1:8316c23ec6b9 196 /// printf("ecg_mean is %d\n",ecg_mean);
nikitateggi 1:8316c23ec6b9 197 }
nikitateggi 1:8316c23ec6b9 198 ecg_mean =ecg_mean/buf_length ;
nikitateggi 1:8316c23ec6b9 199 //printf("ecg_mean is %d\n",ecg_mean);
nikitateggi 1:8316c23ec6b9 200 for (k=0 ; k<buf_length ; k++ )
nikitateggi 1:8316c23ec6b9 201 {
nikitateggi 1:8316c23ec6b9 202 ecg_x[k] = ecg_buf[k] - ecg_mean ;
nikitateggi 1:8316c23ec6b9 203 printf("%d\n",(ecg_x[k]));
nikitateggi 1:8316c23ec6b9 204 }
nikitateggi 1:8316c23ec6b9 205 */
nikitateggi 1:8316c23ec6b9 206 // 4 pt Moving Average
nikitateggi 1:8316c23ec6b9 207 /*printf("Averaged ECG Data\n");
nikitateggi 1:8316c23ec6b9 208 for(int k=0; k<N_ECG; k++)
nikitateggi 1:8316c23ec6b9 209 {
nikitateggi 1:8316c23ec6b9 210 // sample_sum= ( ecg_x[k]+ecg_x[k+1]+ ecg_x[k+2]+ ecg_x[k+3]);
nikitateggi 1:8316c23ec6b9 211 sample_sum= ( ecg_buf[k]+ecg_buf[k+1]+ ecg_buf[k+2]+ ecg_buf[k+3]);
nikitateggi 1:8316c23ec6b9 212 ecg_buf[k]= sample_sum/(int32_t)4;
nikitateggi 1:8316c23ec6b9 213
nikitateggi 1:8316c23ec6b9 214 // printf("%d\n",(ecg_buf[k]));
nikitateggi 1:8316c23ec6b9 215 }
nikitateggi 1:8316c23ec6b9 216
nikitateggi 1:8316c23ec6b9 217 // Derivative filtering of the averaged ECG signal
nikitateggi 1:8316c23ec6b9 218 // printf("Derivative filtered ECG Data\n");
nikitateggi 1:8316c23ec6b9 219 ecg_der[0]=0;
nikitateggi 1:8316c23ec6b9 220 for(int k=0; k<N_ECG-3; k++)
nikitateggi 1:8316c23ec6b9 221 {
nikitateggi 1:8316c23ec6b9 222 w1= (fs*(ecg_buf[k+1]-ecg_buf[k]));
nikitateggi 1:8316c23ec6b9 223 //w1=1;
nikitateggi 1:8316c23ec6b9 224 // w=0.995;
nikitateggi 1:8316c23ec6b9 225 // ecg_der[k]=(w+w1);
nikitateggi 1:8316c23ec6b9 226 w=(1*ecg_der[k]);
nikitateggi 1:8316c23ec6b9 227 ecg_der[k+1]=(w1+w);
nikitateggi 1:8316c23ec6b9 228 // printf("ecg_der[k+1]=%d\n",(ecg_der[k+1]));
nikitateggi 1:8316c23ec6b9 229 // printf("w=%f\n", w);
nikitateggi 1:8316c23ec6b9 230 // printf("w1=%f\n", w1);
nikitateggi 1:8316c23ec6b9 231 // printf("%d\n",(ecg_der[k]));
nikitateggi 1:8316c23ec6b9 232 //printf("k=%d\n", k);
nikitateggi 1:8316c23ec6b9 233 }*/
nikitateggi 1:8316c23ec6b9 234 } // End of main function
nikitateggi 1:8316c23ec6b9 235
nikitateggi 1:8316c23ec6b9 236 //for initial configurations
nikitateggi 1:8316c23ec6b9 237 void setup()
nikitateggi 1:8316c23ec6b9 238 {
nikitateggi 1:8316c23ec6b9 239 //initially make all inputs low until power is up and stabilized
nikitateggi 1:8316c23ec6b9 240 CHIPSEL_BAR = 0;
nikitateggi 1:8316c23ec6b9 241 ADS_START = 0;
nikitateggi 1:8316c23ec6b9 242 RESET_BAR = 0;
nikitateggi 1:8316c23ec6b9 243 //wait for oscillator to wake up
nikitateggi 1:8316c23ec6b9 244 wait(1);
nikitateggi 1:8316c23ec6b9 245
nikitateggi 1:8316c23ec6b9 246 CHIPSEL_BAR = 1;
nikitateggi 1:8316c23ec6b9 247 RESET_BAR = 1; //wait for tpor time
nikitateggi 1:8316c23ec6b9 248 //wait for power on reset
nikitateggi 1:8316c23ec6b9 249 wait(1);
nikitateggi 1:8316c23ec6b9 250 RESET_BAR = 0; // send a reset pulse and wait for t_reset amount of time
nikitateggi 1:8316c23ec6b9 251 wait(1);
nikitateggi 1:8316c23ec6b9 252 RESET_BAR = 1;//release the reset
nikitateggi 1:8316c23ec6b9 253 //Wait for 18 tclks = 36 us
nikitateggi 1:8316c23ec6b9 254 wait_us(36);
nikitateggi 1:8316c23ec6b9 255
nikitateggi 1:8316c23ec6b9 256 //Device wakes up in RDATAC mode so send SDATAC command to write to registers
nikitateggi 1:8316c23ec6b9 257 cmdWrite(CMD_SDATAC) ;
nikitateggi 1:8316c23ec6b9 258 // printf("Device is in SDATAC mode\n");
nikitateggi 1:8316c23ec6b9 259
nikitateggi 1:8316c23ec6b9 260 regRead(REG_ID);
nikitateggi 1:8316c23ec6b9 261 printf("DEVICE ID register read from ADS is= 0x%X\n",data1);
nikitateggi 1:8316c23ec6b9 262 wait(1);
nikitateggi 1:8316c23ec6b9 263
nikitateggi 1:8316c23ec6b9 264 //Since we are using internal 2.42V reference and enable clock on the CLK PIN
nikitateggi 1:8316c23ec6b9 265 //Write 0xA8 to CONFIG2 register
nikitateggi 1:8316c23ec6b9 266 regWrite(REG_CONFIG2,no_mode);
nikitateggi 1:8316c23ec6b9 267
nikitateggi 1:8316c23ec6b9 268 //Set continuous sampling mode, 500 SPS
nikitateggi 1:8316c23ec6b9 269 regWrite(REG_CONFIG1,sps500);
nikitateggi 1:8316c23ec6b9 270
nikitateggi 1:8316c23ec6b9 271 //PGA Gain = 6, inputs shorted for noise measurements
nikitateggi 1:8316c23ec6b9 272 regWrite(REG_CH1SET, offset_meas);
nikitateggi 1:8316c23ec6b9 273
nikitateggi 1:8316c23ec6b9 274 //read data from CONFIG2 register
nikitateggi 1:8316c23ec6b9 275 regRead(REG_CONFIG2);
nikitateggi 1:8316c23ec6b9 276 // printf("REG_CONFIG2 register read from ADS for initial setup is= 0x%X\n",data1);
nikitateggi 1:8316c23ec6b9 277
nikitateggi 1:8316c23ec6b9 278 //read data from CONFIG1 register
nikitateggi 1:8316c23ec6b9 279 regRead(REG_CONFIG1);
nikitateggi 1:8316c23ec6b9 280 // printf("REG_CONFIG1 register read from ADS for initial setup is= 0x%X\n",data1);
nikitateggi 1:8316c23ec6b9 281
nikitateggi 1:8316c23ec6b9 282 //read data from CONFIG1 register
nikitateggi 1:8316c23ec6b9 283 regRead(REG_CH1SET);
nikitateggi 1:8316c23ec6b9 284 // printf("REG_CH1SET register read from ADS for initial setup is= 0x%X\n",data1);
nikitateggi 1:8316c23ec6b9 285 }
nikitateggi 1:8316c23ec6b9 286
nikitateggi 1:8316c23ec6b9 287 void testsetup()
nikitateggi 1:8316c23ec6b9 288 {
nikitateggi 1:8316c23ec6b9 289 //Send SDATAC command to write to registers to set test signals
nikitateggi 1:8316c23ec6b9 290 cmdWrite(CMD_SDATAC) ;
nikitateggi 1:8316c23ec6b9 291 printf("Device is in SDATAC mode\n");
nikitateggi 1:8316c23ec6b9 292
nikitateggi 1:8316c23ec6b9 293 //Since we are using internal 2.42V reference and enable clock on the CLK PIN
nikitateggi 1:8316c23ec6b9 294 //Write 0xA3 to CONFIG2 register to set test signal and its freq = 1Hz
nikitateggi 1:8316c23ec6b9 295 regWrite(REG_CONFIG2,test_mode);
nikitateggi 1:8316c23ec6b9 296
nikitateggi 1:8316c23ec6b9 297 //PGA Gain = 6, test signal selected
nikitateggi 1:8316c23ec6b9 298 regWrite(REG_CH1SET, test_inp);
nikitateggi 1:8316c23ec6b9 299
nikitateggi 1:8316c23ec6b9 300 //read data from CONFIG2 register
nikitateggi 1:8316c23ec6b9 301 regRead(REG_CONFIG2);
nikitateggi 1:8316c23ec6b9 302 printf("REG_CONFIG2 register read from ADS for test signal setup is= 0x%X\n",data1);
nikitateggi 1:8316c23ec6b9 303
nikitateggi 1:8316c23ec6b9 304 //read data from CONFIG1 register
nikitateggi 1:8316c23ec6b9 305 regRead(REG_CH1SET);
nikitateggi 1:8316c23ec6b9 306 printf("REG_CH1SET register read from ADS for test signal setup is= 0x%X\n",data1);
nikitateggi 1:8316c23ec6b9 307 }
nikitateggi 1:8316c23ec6b9 308
nikitateggi 1:8316c23ec6b9 309 void ecgsetup()
nikitateggi 1:8316c23ec6b9 310 {
nikitateggi 1:8316c23ec6b9 311 cmdWrite(CMD_SDATAC) ; //Set to SDATAC mode to set CH1SET register
nikitateggi 1:8316c23ec6b9 312
nikitateggi 1:8316c23ec6b9 313 regWrite(REG_CONFIG1,sps500);
nikitateggi 1:8316c23ec6b9 314 regWrite(REG_CONFIG2, default_mode);//put INT_TEST and TEST_FREQ bits to default mode(set those bits to '0')
nikitateggi 1:8316c23ec6b9 315 regWrite(REG_LOFF, loff_conf);
nikitateggi 1:8316c23ec6b9 316 regWrite(REG_CH1SET, elec_inp);// Set to read normal electrode input
nikitateggi 1:8316c23ec6b9 317 regWrite(REG_RLD_SENS, rld_sens_sig);//Set RLD_SENS
nikitateggi 1:8316c23ec6b9 318 regWrite(REG_LOFF_SENS, loff_sens_sig);//Set LOFF_SENS
nikitateggi 1:8316c23ec6b9 319 regWrite(REG_MISC1, misc1_inp );//Set RESP1
nikitateggi 1:8316c23ec6b9 320 regWrite(REG_MISC2, misc2_inp );//Set RESP2
nikitateggi 1:8316c23ec6b9 321 //printf("connect ECG leads\n");
nikitateggi 1:8316c23ec6b9 322 wait(0.5);
nikitateggi 1:8316c23ec6b9 323 regRead(REG_LOFF_STAT);//Read LOFF_STAT register
nikitateggi 1:8316c23ec6b9 324 printf("REG_LOFF_STAT register read from ADS for ecg setup is= 0x%X\n",data1);
nikitateggi 1:8316c23ec6b9 325 }
nikitateggi 1:8316c23ec6b9 326
nikitateggi 1:8316c23ec6b9 327 void doHelp(void)
nikitateggi 1:8316c23ec6b9 328 {
nikitateggi 1:8316c23ec6b9 329 printf("=== spi test ===\n\r") ;
nikitateggi 1:8316c23ec6b9 330 printf("commands available\n\r") ;
nikitateggi 1:8316c23ec6b9 331 printf("help\n\r") ;
nikitateggi 1:8316c23ec6b9 332 printf("status\n\r") ;
nikitateggi 1:8316c23ec6b9 333 printf("freq freq_in_hz\n\r") ;
nikitateggi 1:8316c23ec6b9 334 printf("mode (0 | 1 | 2 | 3)\n\r") ;
nikitateggi 1:8316c23ec6b9 335 printf("bit (4 - 16)\n\r") ;
nikitateggi 1:8316c23ec6b9 336 printf("write value\n\r") ;
nikitateggi 1:8316c23ec6b9 337 printf("read\n\r") ;
nikitateggi 1:8316c23ec6b9 338 printf("loop number (set repeat number for read/write)\n\r") ;
nikitateggi 1:8316c23ec6b9 339 }
nikitateggi 1:8316c23ec6b9 340
nikitateggi 1:8316c23ec6b9 341 void doStatus(void)
nikitateggi 1:8316c23ec6b9 342 {
nikitateggi 1:8316c23ec6b9 343 printf("=== Status Report ===\n\r") ;
nikitateggi 1:8316c23ec6b9 344 printf("bits: %d\n\r", bits) ;
nikitateggi 1:8316c23ec6b9 345 printf("mode: %d\n\r", mode) ;
nikitateggi 1:8316c23ec6b9 346 printf("freq: %d Hz\n\r", freq) ;
nikitateggi 1:8316c23ec6b9 347 printf("loop: %d\n\r", loop) ;
nikitateggi 1:8316c23ec6b9 348 }
nikitateggi 1:8316c23ec6b9 349
nikitateggi 1:8316c23ec6b9 350 void doFreq(void)
nikitateggi 1:8316c23ec6b9 351 {
nikitateggi 1:8316c23ec6b9 352 // int freq = 0 ;
nikitateggi 1:8316c23ec6b9 353 // scanf("%d", &freq) ;
nikitateggi 1:8316c23ec6b9 354 printf("setting frequency to %d\n\r", freq) ;
nikitateggi 1:8316c23ec6b9 355 mySpi.frequency(freq) ;
nikitateggi 1:8316c23ec6b9 356 }
nikitateggi 1:8316c23ec6b9 357
nikitateggi 1:8316c23ec6b9 358 void doMode(void)
nikitateggi 1:8316c23ec6b9 359 {
nikitateggi 1:8316c23ec6b9 360 //scanf("%d", &mode) ;
nikitateggi 1:8316c23ec6b9 361 printf("setting format(%d, %d)\n\r",bits, mode) ;
nikitateggi 1:8316c23ec6b9 362 mySpi.format(bits, mode) ;
nikitateggi 1:8316c23ec6b9 363 }
nikitateggi 1:8316c23ec6b9 364
nikitateggi 1:8316c23ec6b9 365 void doBit(void)
nikitateggi 1:8316c23ec6b9 366 {
nikitateggi 1:8316c23ec6b9 367 // scanf("%d", &bits) ;
nikitateggi 1:8316c23ec6b9 368 printf("setting format(%d, %d)\n\r",bits, mode) ;
nikitateggi 1:8316c23ec6b9 369 mySpi.format(bits, mode) ;
nikitateggi 1:8316c23ec6b9 370 }
nikitateggi 1:8316c23ec6b9 371
nikitateggi 1:8316c23ec6b9 372 void doWrite(void)
nikitateggi 1:8316c23ec6b9 373 {
nikitateggi 1:8316c23ec6b9 374
nikitateggi 1:8316c23ec6b9 375 //DRDY_BAR1.disable_irq();
nikitateggi 1:8316c23ec6b9 376
nikitateggi 1:8316c23ec6b9 377 CHIPSEL_BAR = 0;
nikitateggi 1:8316c23ec6b9 378 // int freq1 = 50000;
nikitateggi 1:8316c23ec6b9 379 // mySpi.frequency(freq1) ;
nikitateggi 1:8316c23ec6b9 380 value1 = mySpi.write(0x00);
nikitateggi 1:8316c23ec6b9 381 value2 = mySpi.write(0x00);
nikitateggi 1:8316c23ec6b9 382 value3 = mySpi.write(0x00);
nikitateggi 1:8316c23ec6b9 383 value4 = mySpi.write(0x00);
nikitateggi 1:8316c23ec6b9 384 value5 = mySpi.write(0x00);
nikitateggi 1:8316c23ec6b9 385 value6 = mySpi.write(0x00);
nikitateggi 1:8316c23ec6b9 386
nikitateggi 1:8316c23ec6b9 387 CHIPSEL_BAR = 0;
nikitateggi 1:8316c23ec6b9 388 //DRDY_BAR1.enable_irq();
nikitateggi 1:8316c23ec6b9 389 }
nikitateggi 1:8316c23ec6b9 390
nikitateggi 1:8316c23ec6b9 391 void doRead(void)
nikitateggi 1:8316c23ec6b9 392 {
nikitateggi 1:8316c23ec6b9 393 int dummy = 0 ;
nikitateggi 1:8316c23ec6b9 394
nikitateggi 1:8316c23ec6b9 395 while(!DRDY_BAR)
nikitateggi 1:8316c23ec6b9 396 ADS_START = 0;
nikitateggi 1:8316c23ec6b9 397
nikitateggi 1:8316c23ec6b9 398 value = mySpi.write(dummy) ;
nikitateggi 1:8316c23ec6b9 399
nikitateggi 1:8316c23ec6b9 400 }
nikitateggi 1:8316c23ec6b9 401
nikitateggi 1:8316c23ec6b9 402 void doLoop(void)
nikitateggi 1:8316c23ec6b9 403 {
nikitateggi 1:8316c23ec6b9 404 // scanf("%d", &loop) ;
nikitateggi 1:8316c23ec6b9 405 printf("repeat number has been set to %d\n\r", loop) ;
nikitateggi 1:8316c23ec6b9 406 }
nikitateggi 1:8316c23ec6b9 407
nikitateggi 1:8316c23ec6b9 408 void cmdWrite(int data)
nikitateggi 1:8316c23ec6b9 409 {
nikitateggi 1:8316c23ec6b9 410 CHIPSEL_BAR = 0;
nikitateggi 1:8316c23ec6b9 411 mySpi.write(data) ;
nikitateggi 1:8316c23ec6b9 412 wait_ms(1);
nikitateggi 1:8316c23ec6b9 413 CHIPSEL_BAR = 1;
nikitateggi 1:8316c23ec6b9 414 }
nikitateggi 1:8316c23ec6b9 415
nikitateggi 1:8316c23ec6b9 416 void regWrite(int address, int data)
nikitateggi 1:8316c23ec6b9 417 {
nikitateggi 1:8316c23ec6b9 418 int data_to_send = CMD_WREG << 5;
nikitateggi 1:8316c23ec6b9 419 data_to_send = data_to_send | address;
nikitateggi 1:8316c23ec6b9 420 CHIPSEL_BAR = 0;
nikitateggi 1:8316c23ec6b9 421 mySpi.write(data_to_send);
nikitateggi 1:8316c23ec6b9 422 wait_ms(1);
nikitateggi 1:8316c23ec6b9 423 mySpi.write(0x00) ;
nikitateggi 1:8316c23ec6b9 424 wait_ms(1);
nikitateggi 1:8316c23ec6b9 425 mySpi.write(data) ;
nikitateggi 1:8316c23ec6b9 426 wait_ms(1);
nikitateggi 1:8316c23ec6b9 427 CHIPSEL_BAR = 1;
nikitateggi 1:8316c23ec6b9 428 }
nikitateggi 1:8316c23ec6b9 429
nikitateggi 1:8316c23ec6b9 430 void regRead(int address)
nikitateggi 1:8316c23ec6b9 431 {
nikitateggi 1:8316c23ec6b9 432 int data_to_receive = CMD_RREG << 5;
nikitateggi 1:8316c23ec6b9 433 data_to_receive = data_to_receive | address;
nikitateggi 1:8316c23ec6b9 434 CHIPSEL_BAR = 0;
nikitateggi 1:8316c23ec6b9 435 mySpi.write(data_to_receive);
nikitateggi 1:8316c23ec6b9 436 wait_ms(1);
nikitateggi 1:8316c23ec6b9 437 mySpi.write(0x00) ;
nikitateggi 1:8316c23ec6b9 438 wait_ms(1);
nikitateggi 1:8316c23ec6b9 439 data1 = mySpi.write(0x00) ;
nikitateggi 1:8316c23ec6b9 440
nikitateggi 1:8316c23ec6b9 441 //printf("DEVICE ID register read from ADS is= 0x%X\n",data1);
nikitateggi 1:8316c23ec6b9 442
nikitateggi 1:8316c23ec6b9 443 //wait_ms(1);
nikitateggi 1:8316c23ec6b9 444 CHIPSEL_BAR = 1;
nikitateggi 1:8316c23ec6b9 445 }