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

bt.cpp@54:f2a413d5dffd, 2017-09-27 (annotated)

Committer:
nikitateggi
Date:
Wed Sep 27 09:36:26 2017 +0000
Revision:
54:f2a413d5dffd
Parent:
52:7d9ff7781bdc
Child:
56:89eb9a977641
Modification in LPF and GLC

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nikitateggi 19:1650bbc923cc 1 #include "mbed.h"
nikitateggi 19:1650bbc923cc 2 #include "sdcard.h"
nikitateggi 19:1650bbc923cc 3 #include "struct.h"
nikitateggi 44:05dbea558c9a 4 #include "eeprom_pgm.h"
nikitateggi 44:05dbea558c9a 5 #include "main.h"
nikitateggi 52:7d9ff7781bdc 6
nikitateggi 45:067673dae242 7 #define ACK 0x00 /// changed //16/06 #define all the values removing structure
nikitateggi 45:067673dae242 8 #define START_OF_FILE 0x01
nikitateggi 45:067673dae242 9 #define END_OF_FILE 0x02
nikitateggi 45:067673dae242 10 #define DATA_TRFR 0x03
nikitateggi 45:067673dae242 11 #define NACK 0xFF
nikitateggi 45:067673dae242 12 #define SOS 0xc0
nikitateggi 45:067673dae242 13 #define EOS 0xc0
nikitateggi 45:067673dae242 14 #define NO_OF_SAMPLES 600 //changed the buffer size from 150- 22/7/17- suhasini
nikitateggi 45:067673dae242 15 #define CHKSUM 0x80
nikitateggi 45:067673dae242 16 #define STRUCTURE_LENGTH 26
nikitateggi 52:7d9ff7781bdc 17
nikitateggi 22:ffa88619551d 18 BLEMsg_info *bt_file;
nikitateggi 22:ffa88619551d 19 Point *myBleMsg;
nikitateggi 52:7d9ff7781bdc 20
nikitateggi 27:907f8ce0025e 21 Serial mc(USBTX,USBRX); // serial terminal
nikitateggi 27:907f8ce0025e 22 Serial blue(PTC4,PTC3); // communicating bluetooth through serial
nikitateggi 27:907f8ce0025e 23
nikitateggi 28:65f2d80b7eb7 24 static uint32_t total_samples=0; // variable to hold total number of samples
nikitateggi 19:1650bbc923cc 25 Point b; // structure copy
nikitateggi 19:1650bbc923cc 26 BLEMsg_info bt_file1; // structure copy
nikitateggi 28:65f2d80b7eb7 27 static uint32_t total_file_size=0; // to determine the size of the file
nikitateggi 44:05dbea558c9a 28 static uint32_t total_file_size_sent=0;
nikitateggi 28:65f2d80b7eb7 29 static uint32_t file_start=0; // variable for 'for loop'
nikitateggi 44:05dbea558c9a 30 //static uint32_t j=0;
nikitateggi 27:907f8ce0025e 31 uint8_t count_send=0;
nikitateggi 28:65f2d80b7eb7 32 static uint32_t file_pointer_position=0;
nikitateggi 28:65f2d80b7eb7 33 static uint32_t counter=0;
nikitateggi 44:05dbea558c9a 34 static uint32_t v1[NO_OF_SAMPLES];
nikitateggi 27:907f8ce0025e 35 uint8_t file=0;
nikitateggi 54:f2a413d5dffd 36 static uint32_t bt_pid = 0;
nikitateggi 52:7d9ff7781bdc 37
nikitateggi 19:1650bbc923cc 38 uint8_t bt_send(uint8_t state_tx)
nikitateggi 19:1650bbc923cc 39 {
nikitateggi 32:76892fdf5e4c 40
nikitateggi 44:05dbea558c9a 41 blue.baud(115200); // baud rate of bluetooth
nikitateggi 44:05dbea558c9a 42 bt_file=&bt_file1;
nikitateggi 44:05dbea558c9a 43 myBleMsg=&b;
nikitateggi 44:05dbea558c9a 44 int8_t check_sum=0;
nikitateggi 44:05dbea558c9a 45 uint8_t state_rx =0;
nikitateggi 27:907f8ce0025e 46
nikitateggi 45:067673dae242 47 switch(state_tx)
nikitateggi 19:1650bbc923cc 48 {
nikitateggi 19:1650bbc923cc 49
nikitateggi 27:907f8ce0025e 50 case 1:
nikitateggi 44:05dbea558c9a 51 state_tx =0;
nikitateggi 27:907f8ce0025e 52 counter=0;
nikitateggi 44:05dbea558c9a 53 total_file_size_sent=0;
nikitateggi 45:067673dae242 54 file_start=0;
nikitateggi 45:067673dae242 55 count_send=0; total_samples=0;
nikitateggi 27:907f8ce0025e 56 file_pointer_position=0;
nikitateggi 54:f2a413d5dffd 57 bt_pid = get_btpid()+1; //added on 22/09/2017 nikita
nikitateggi 48:f90edb35a20e 58 mc.printf("bt_pid = %d\n",get_btpid());
nikitateggi 54:f2a413d5dffd 59 if(get_filepid()>bt_pid) //check for pid and bluetooth pid by reading from file
nikitateggi 44:05dbea558c9a 60 {
nikitateggi 44:05dbea558c9a 61 send_initial_string();
nikitateggi 44:05dbea558c9a 62 blue.printf("\n");
nikitateggi 54:f2a413d5dffd 63 file=sd_open_read(bt_pid); // open the file for reading
nikitateggi 48:f90edb35a20e 64 total_file_size=file_size(); // determined the file size
nikitateggi 47:3716dd41dba6 65 state_rx = 1;
nikitateggi 44:05dbea558c9a 66 }
nikitateggi 44:05dbea558c9a 67
nikitateggi 44:05dbea558c9a 68 else
nikitateggi 44:05dbea558c9a 69 {
nikitateggi 45:067673dae242 70 state_rx =0; //no files to send
nikitateggi 44:05dbea558c9a 71 mc.printf("no file to send\n");
nikitateggi 44:05dbea558c9a 72 }
nikitateggi 44:05dbea558c9a 73 break;
nikitateggi 44:05dbea558c9a 74
nikitateggi 19:1650bbc923cc 75
nikitateggi 44:05dbea558c9a 76 case 2: total_samples=0;
nikitateggi 47:3716dd41dba6 77 //file=sd_open_read(get_btpid());
nikitateggi 48:f90edb35a20e 78 // total_file_size=file_size() ; // determined the file size
nikitateggi 45:067673dae242 79 sd_read1(bt_file1); // read the sd card file
avp2417 36:00d96aa14658 80 mc.printf("sd file opened to read data in it\n");
nikitateggi 45:067673dae242 81 myBleMsg->bt_msg=bt_file1; //copy the contents to the structure
nikitateggi 45:067673dae242 82 send_structure(); // send the structure string
avp2417 36:00d96aa14658 83 blue.printf("\n");
avp2417 36:00d96aa14658 84 mc.printf("sent initial string\n");
nikitateggi 27:907f8ce0025e 85 total_samples= myBleMsg->bt_msg.num_samples.num_sample_ppg_dummy+myBleMsg->bt_msg.num_samples.num_sample_ecg_OTtyp;
nikitateggi 19:1650bbc923cc 86 state_tx =0;
nikitateggi 19:1650bbc923cc 87 state_rx =2;
nikitateggi 27:907f8ce0025e 88 count_send=0;
nikitateggi 44:05dbea558c9a 89 total_file_size_sent=file_size1();
nikitateggi 19:1650bbc923cc 90 break;
nikitateggi 19:1650bbc923cc 91
nikitateggi 19:1650bbc923cc 92
nikitateggi 44:05dbea558c9a 93 case 3:
nikitateggi 44:05dbea558c9a 94 counter=0;
nikitateggi 44:05dbea558c9a 95 if(count_send<(total_samples/NO_OF_SAMPLES))
nikitateggi 44:05dbea558c9a 96 {
nikitateggi 44:05dbea558c9a 97 sd_read(v1,NO_OF_SAMPLES);
nikitateggi 44:05dbea558c9a 98 counter=NO_OF_SAMPLES; //read 1500 samples
nikitateggi 44:05dbea558c9a 99 send_data_str1();
nikitateggi 44:05dbea558c9a 100 for(file_start=0;file_start<(NO_OF_SAMPLES);file_start++)
nikitateggi 44:05dbea558c9a 101 {
nikitateggi 19:1650bbc923cc 102
nikitateggi 44:05dbea558c9a 103 blue.printf("%08x", v1[file_start]);
nikitateggi 27:907f8ce0025e 104
nikitateggi 44:05dbea558c9a 105 }
avp2417 36:00d96aa14658 106
nikitateggi 44:05dbea558c9a 107 check_sum=checksum_rawdata((uint8_t *)v1,counter); // calculating checksum // calculating checksum
nikitateggi 44:05dbea558c9a 108 state_tx =0;
nikitateggi 44:05dbea558c9a 109 state_rx =3;
nikitateggi 44:05dbea558c9a 110 send_data_str2(check_sum); // send the remaining part of the string
nikitateggi 19:1650bbc923cc 111
nikitateggi 44:05dbea558c9a 112 }
nikitateggi 19:1650bbc923cc 113
nikitateggi 44:05dbea558c9a 114 else
nikitateggi 44:05dbea558c9a 115 {
nikitateggi 44:05dbea558c9a 116 for(uint16_t l=0;l<NO_OF_SAMPLES;l++)
nikitateggi 44:05dbea558c9a 117 {
nikitateggi 44:05dbea558c9a 118 v1[l]=NULL;
nikitateggi 44:05dbea558c9a 119 }
nikitateggi 44:05dbea558c9a 120 counter=(total_samples-( NO_OF_SAMPLES*count_send));
nikitateggi 27:907f8ce0025e 121 send_data_str1();
nikitateggi 44:05dbea558c9a 122 sd_read(v1,(total_samples-( NO_OF_SAMPLES*count_send)));
nikitateggi 44:05dbea558c9a 123
nikitateggi 44:05dbea558c9a 124 for(file_start=0;file_start<(total_samples-( NO_OF_SAMPLES*count_send));file_start++)
nikitateggi 19:1650bbc923cc 125 {
nikitateggi 24:d992ee8369f4 126 blue.printf("%08x", v1[file_start]);
nikitateggi 27:907f8ce0025e 127
nikitateggi 19:1650bbc923cc 128 }
nikitateggi 27:907f8ce0025e 129
nikitateggi 19:1650bbc923cc 130 state_tx=0;
nikitateggi 19:1650bbc923cc 131 state_rx=4;
nikitateggi 44:05dbea558c9a 132 check_sum=checksum_rawdata((uint8_t *)v1,counter); // calculating checksum
nikitateggi 22:ffa88619551d 133 send_data_str2(check_sum);
nikitateggi 19:1650bbc923cc 134 }
nikitateggi 19:1650bbc923cc 135
nikitateggi 45:067673dae242 136 total_file_size_sent=file_size1();
nikitateggi 27:907f8ce0025e 137 blue.printf("\n");
nikitateggi 27:907f8ce0025e 138 break;
nikitateggi 19:1650bbc923cc 139
nikitateggi 19:1650bbc923cc 140
nikitateggi 48:f90edb35a20e 141 case 4: // total_file_size_sent=file_size1();
nikitateggi 44:05dbea558c9a 142 if(total_file_size_sent==total_file_size) // if the total file size is same as total file size
nikitateggi 27:907f8ce0025e 143 { // then there is no more data to send in that particular file
nikitateggi 19:1650bbc923cc 144
nikitateggi 44:05dbea558c9a 145 state_rx=5;
nikitateggi 44:05dbea558c9a 146 send_last_string();
nikitateggi 24:d992ee8369f4 147 blue.printf("\n");
nikitateggi 44:05dbea558c9a 148
nikitateggi 19:1650bbc923cc 149 }
nikitateggi 19:1650bbc923cc 150 else
nikitateggi 19:1650bbc923cc 151 {
nikitateggi 44:05dbea558c9a 152
nikitateggi 44:05dbea558c9a 153 total_samples=0;
nikitateggi 44:05dbea558c9a 154 sd_read1(bt_file1); // read the sd card file
nikitateggi 46:162ed3f051b2 155 // mc.printf("sd file opened to read data in it\n");
nikitateggi 44:05dbea558c9a 156 myBleMsg->bt_msg=bt_file1; //copy the contents to the structure
nikitateggi 44:05dbea558c9a 157 send_structure(); // send the initial string
nikitateggi 44:05dbea558c9a 158 blue.printf("\n");
nikitateggi 46:162ed3f051b2 159 // mc.printf("sent initial string\n");
nikitateggi 44:05dbea558c9a 160 total_samples= myBleMsg->bt_msg.num_samples.num_sample_ppg_dummy+myBleMsg->bt_msg.num_samples.num_sample_ecg_OTtyp;
nikitateggi 44:05dbea558c9a 161 state_tx =0;
nikitateggi 44:05dbea558c9a 162 state_rx =2;
nikitateggi 44:05dbea558c9a 163 count_send=0;
nikitateggi 44:05dbea558c9a 164 total_file_size_sent=file_size1();
nikitateggi 44:05dbea558c9a 165
nikitateggi 19:1650bbc923cc 166 }
nikitateggi 19:1650bbc923cc 167
nikitateggi 19:1650bbc923cc 168
nikitateggi 52:7d9ff7781bdc 169
nikitateggi 52:7d9ff7781bdc 170
nikitateggi 19:1650bbc923cc 171 }
nikitateggi 52:7d9ff7781bdc 172
nikitateggi 19:1650bbc923cc 173 return state_rx;
nikitateggi 19:1650bbc923cc 174
nikitateggi 19:1650bbc923cc 175 }
nikitateggi 19:1650bbc923cc 176
nikitateggi 19:1650bbc923cc 177
nikitateggi 19:1650bbc923cc 178
nikitateggi 19:1650bbc923cc 179
nikitateggi 19:1650bbc923cc 180 uint8_t bt_receive (uint8_t state_rx)
nikitateggi 19:1650bbc923cc 181 {
nikitateggi 19:1650bbc923cc 182
nikitateggi 52:7d9ff7781bdc 183 unsigned char state_tx =1; //state for transmitting
nikitateggi 52:7d9ff7781bdc 184 uint8_t string_length_rx=0;
nikitateggi 52:7d9ff7781bdc 185 char ack_rx[2]; // varibale to receive ack from the bluetooth
nikitateggi 52:7d9ff7781bdc 186 char chksum_rx[3];
nikitateggi 52:7d9ff7781bdc 187 char btdata_received[17];
nikitateggi 52:7d9ff7781bdc 188
nikitateggi 44:05dbea558c9a 189
nikitateggi 52:7d9ff7781bdc 190 while (blue.readable()!= NULL) // reading string from bluetooth app
nikitateggi 52:7d9ff7781bdc 191 {
nikitateggi 52:7d9ff7781bdc 192 blue.scanf("%17s", btdata_received);
nikitateggi 52:7d9ff7781bdc 193 mc.printf("%s\r\n", btdata_received);
nikitateggi 52:7d9ff7781bdc 194
nikitateggi 52:7d9ff7781bdc 195 }
nikitateggi 52:7d9ff7781bdc 196
nikitateggi 52:7d9ff7781bdc 197 string_length_rx = strlen(btdata_received); // storing the length of the string received
nikitateggi 52:7d9ff7781bdc 198 memcpy(ack_rx, btdata_received+1, 2); // reading the ack received
nikitateggi 52:7d9ff7781bdc 199 memcpy(chksum_rx, btdata_received+(string_length_rx-2), 3); // reading the checksum received
nikitateggi 52:7d9ff7781bdc 200 mc.printf("%s\r\n",ack_rx);
nikitateggi 52:7d9ff7781bdc 201 mc.printf("%s\r\n",chksum_rx);
nikitateggi 44:05dbea558c9a 202
nikitateggi 19:1650bbc923cc 203 switch(state_rx)
nikitateggi 19:1650bbc923cc 204 {
nikitateggi 19:1650bbc923cc 205
nikitateggi 52:7d9ff7781bdc 206 case 1: // wait for the ack
nikitateggi 22:ffa88619551d 207 state_rx=0;
nikitateggi 19:1650bbc923cc 208 myBleMsg->proto=ACK;
nikitateggi 52:7d9ff7781bdc 209 if ((strcmp(ack_rx ,"00") == NULL ) && (strcmp(chksum_rx ,"80" ) == NULL)) // check for ack and checksum
nikitateggi 44:05dbea558c9a 210
nikitateggi 19:1650bbc923cc 211 {
nikitateggi 19:1650bbc923cc 212
nikitateggi 19:1650bbc923cc 213 state_tx=2;
nikitateggi 19:1650bbc923cc 214 }
nikitateggi 19:1650bbc923cc 215
nikitateggi 22:ffa88619551d 216 else
nikitateggi 19:1650bbc923cc 217
nikitateggi 19:1650bbc923cc 218 {
nikitateggi 19:1650bbc923cc 219
nikitateggi 19:1650bbc923cc 220 state_tx=1;
nikitateggi 48:f90edb35a20e 221 sd_close();
nikitateggi 19:1650bbc923cc 222 }
nikitateggi 19:1650bbc923cc 223 break;
nikitateggi 19:1650bbc923cc 224
nikitateggi 19:1650bbc923cc 225 case 2: state_rx =0; //wait for the ack
nikitateggi 44:05dbea558c9a 226
nikitateggi 52:7d9ff7781bdc 227 if ((strcmp(ack_rx ,"00") == NULL ) && (strcmp(chksum_rx ,"80" ) == NULL))
nikitateggi 19:1650bbc923cc 228 {
nikitateggi 19:1650bbc923cc 229
nikitateggi 19:1650bbc923cc 230 state_tx=3;
nikitateggi 44:05dbea558c9a 231 file_pointer_position=total_file_size_sent;
nikitateggi 19:1650bbc923cc 232 }
nikitateggi 19:1650bbc923cc 233
nikitateggi 19:1650bbc923cc 234 else
nikitateggi 19:1650bbc923cc 235
nikitateggi 19:1650bbc923cc 236 {
nikitateggi 19:1650bbc923cc 237
nikitateggi 19:1650bbc923cc 238 state_tx=2;
nikitateggi 22:ffa88619551d 239 setpos1(file_pointer_position);
nikitateggi 47:3716dd41dba6 240 //sd_close(); //file closed which was opened earlier because it opens again in bt_send case 1
nikitateggi 27:907f8ce0025e 241
nikitateggi 19:1650bbc923cc 242 }
nikitateggi 27:907f8ce0025e 243 //blue.scanf("%02x%02x%08x%02x",&sos_rx,&ack_rx,&eos_rx,&chksum_rx);
nikitateggi 19:1650bbc923cc 244 break;
nikitateggi 52:7d9ff7781bdc 245
nikitateggi 19:1650bbc923cc 246
nikitateggi 19:1650bbc923cc 247 case 3:
nikitateggi 19:1650bbc923cc 248 state_rx =0;
nikitateggi 52:7d9ff7781bdc 249 if ((strcmp(ack_rx ,"00") == NULL ) && (strcmp(chksum_rx ,"80" ) == NULL))
nikitateggi 19:1650bbc923cc 250 {
nikitateggi 19:1650bbc923cc 251
nikitateggi 45:067673dae242 252 state_tx=3;
nikitateggi 27:907f8ce0025e 253 count_send=count_send+1;
nikitateggi 45:067673dae242 254 file_pointer_position=total_file_size_sent;
nikitateggi 19:1650bbc923cc 255 }
nikitateggi 19:1650bbc923cc 256
nikitateggi 19:1650bbc923cc 257 else
nikitateggi 19:1650bbc923cc 258
nikitateggi 19:1650bbc923cc 259 {
nikitateggi 27:907f8ce0025e 260
nikitateggi 19:1650bbc923cc 261 state_tx=3;
nikitateggi 44:05dbea558c9a 262 file_start=file_start- NO_OF_SAMPLES;
nikitateggi 44:05dbea558c9a 263 setpos1(file_pointer_position);
nikitateggi 44:05dbea558c9a 264 }
nikitateggi 44:05dbea558c9a 265
nikitateggi 44:05dbea558c9a 266 break;
nikitateggi 44:05dbea558c9a 267
nikitateggi 44:05dbea558c9a 268 case 4:
nikitateggi 44:05dbea558c9a 269 state_rx =0;
nikitateggi 52:7d9ff7781bdc 270 if ((strcmp(ack_rx ,"00") == NULL ) && (strcmp(chksum_rx ,"80" ) == NULL))
nikitateggi 44:05dbea558c9a 271 {
nikitateggi 45:067673dae242 272 state_tx=4;
nikitateggi 44:05dbea558c9a 273 count_send=count_send+1;
nikitateggi 45:067673dae242 274 file_pointer_position=total_file_size_sent;
nikitateggi 44:05dbea558c9a 275 }
nikitateggi 44:05dbea558c9a 276
nikitateggi 44:05dbea558c9a 277 else
nikitateggi 44:05dbea558c9a 278
nikitateggi 44:05dbea558c9a 279 {
nikitateggi 44:05dbea558c9a 280
nikitateggi 44:05dbea558c9a 281 state_tx=3;
nikitateggi 44:05dbea558c9a 282 file_start=file_start- NO_OF_SAMPLES;
nikitateggi 19:1650bbc923cc 283 setpos1(file_pointer_position);
nikitateggi 19:1650bbc923cc 284 }
nikitateggi 19:1650bbc923cc 285 break;
nikitateggi 19:1650bbc923cc 286
nikitateggi 52:7d9ff7781bdc 287
nikitateggi 44:05dbea558c9a 288 case 5: state_rx = 0;
nikitateggi 52:7d9ff7781bdc 289 if ((strcmp(ack_rx ,"00") == NULL ) && (strcmp(chksum_rx ,"80" ) == NULL))
nikitateggi 44:05dbea558c9a 290 {
nikitateggi 44:05dbea558c9a 291 sd_close();
nikitateggi 45:067673dae242 292 increment_btpid(); // increment the bluetooth pid and write in the file
nikitateggi 47:3716dd41dba6 293 mc.printf("next file");
nikitateggi 47:3716dd41dba6 294 mc.printf("bt_pid = %d\n",get_btpid());
nikitateggi 44:05dbea558c9a 295 state_tx=1;
nikitateggi 44:05dbea558c9a 296
nikitateggi 44:05dbea558c9a 297 }
nikitateggi 27:907f8ce0025e 298
nikitateggi 44:05dbea558c9a 299 else
nikitateggi 44:05dbea558c9a 300 {
nikitateggi 44:05dbea558c9a 301 state_tx = 4;
nikitateggi 27:907f8ce0025e 302
nikitateggi 44:05dbea558c9a 303 }
nikitateggi 44:05dbea558c9a 304 break;
nikitateggi 52:7d9ff7781bdc 305
nikitateggi 19:1650bbc923cc 306 }
nikitateggi 52:7d9ff7781bdc 307
nikitateggi 19:1650bbc923cc 308 return state_tx;
nikitateggi 19:1650bbc923cc 309 }
nikitateggi 19:1650bbc923cc 310
nikitateggi 19:1650bbc923cc 311
nikitateggi 19:1650bbc923cc 312
nikitateggi 19:1650bbc923cc 313
nikitateggi 19:1650bbc923cc 314
nikitateggi 19:1650bbc923cc 315
nikitateggi 19:1650bbc923cc 316
nikitateggi 44:05dbea558c9a 317 void send_structure() // function to send the structure to bluetooth
nikitateggi 19:1650bbc923cc 318 {
nikitateggi 45:067673dae242 319 myBleMsg->start_of_string=SOS;
nikitateggi 45:067673dae242 320 myBleMsg->length_file = STRUCTURE_LENGTH;
nikitateggi 45:067673dae242 321 myBleMsg->proto=DATA_TRFR; // data transfer mode
nikitateggi 45:067673dae242 322 blue.printf("%02x",myBleMsg->start_of_string);
nikitateggi 45:067673dae242 323 blue.printf("%02x",myBleMsg->proto);
nikitateggi 45:067673dae242 324 blue.printf("%08x",myBleMsg->length_file); //changed the sequence
nikitateggi 45:067673dae242 325 blue.printf("%08x",myBleMsg->bt_msg.length);
nikitateggi 45:067673dae242 326 blue.printf("%02x",myBleMsg->bt_msg.device_id);
nikitateggi 45:067673dae242 327 blue.printf("%08x",myBleMsg->bt_msg.patient_id);
nikitateggi 45:067673dae242 328 blue.printf("%02x",myBleMsg->bt_msg.date_time.date);
nikitateggi 45:067673dae242 329 blue.printf("%02x",myBleMsg->bt_msg.date_time.month);
nikitateggi 45:067673dae242 330 blue.printf("%02x",myBleMsg->bt_msg.date_time.year);
nikitateggi 45:067673dae242 331 blue.printf("%02x",myBleMsg->bt_msg.date_time.hour);
nikitateggi 45:067673dae242 332 blue.printf("%02x",myBleMsg->bt_msg.date_time.mins);
nikitateggi 45:067673dae242 333 blue.printf("%02x",myBleMsg->bt_msg.date_time.sec);
nikitateggi 45:067673dae242 334 blue.printf("%02x",myBleMsg->bt_msg.test_type);
nikitateggi 45:067673dae242 335 blue.printf("%04x",myBleMsg->bt_msg.sampling_freq);
nikitateggi 45:067673dae242 336 blue.printf("%04x",myBleMsg->bt_msg.num_samples. num_sample_ppg_dummy);
nikitateggi 45:067673dae242 337 blue.printf("%04x",myBleMsg->bt_msg.num_samples.num_sample_ecg_OTtyp);
nikitateggi 45:067673dae242 338 blue.printf("%04x",myBleMsg->bt_msg.cal_data.cal_sbp_dummy);
nikitateggi 45:067673dae242 339 blue.printf("%04x",myBleMsg->bt_msg.cal_data.cal_dbp_OTtyp);
nikitateggi 45:067673dae242 340 myBleMsg->end_of_string=EOS;
nikitateggi 45:067673dae242 341 myBleMsg->chk_sum = checksum_struct((uint8_t *)myBleMsg, sizeof(Point));
nikitateggi 45:067673dae242 342 blue.printf("%02x",myBleMsg->end_of_string);
nikitateggi 45:067673dae242 343 blue.printf("%02x",myBleMsg->chk_sum);
nikitateggi 44:05dbea558c9a 344
nikitateggi 19:1650bbc923cc 345
nikitateggi 19:1650bbc923cc 346 }
nikitateggi 19:1650bbc923cc 347
nikitateggi 44:05dbea558c9a 348 void send_initial_string() // function to send the initial string at the start f communication to bluetooth
nikitateggi 22:ffa88619551d 349 {
nikitateggi 52:7d9ff7781bdc 350
nikitateggi 45:067673dae242 351 uint8_t sum_init=0 ;
nikitateggi 45:067673dae242 352 myBleMsg->start_of_string=SOS;
nikitateggi 45:067673dae242 353 myBleMsg->length_file=0;
nikitateggi 45:067673dae242 354 myBleMsg->proto=START_OF_FILE;
nikitateggi 45:067673dae242 355 sum_init=checksum_init();
nikitateggi 45:067673dae242 356 myBleMsg->chk_sum=sum_init;
nikitateggi 45:067673dae242 357 blue.printf("%02x",myBleMsg->start_of_string);
nikitateggi 45:067673dae242 358 blue.printf("%02x",myBleMsg->proto);
nikitateggi 45:067673dae242 359 blue.printf("%08x",myBleMsg->length_file); // chnged
nikitateggi 45:067673dae242 360 myBleMsg->end_of_string=EOS;
nikitateggi 45:067673dae242 361 blue.printf("%02x",myBleMsg->end_of_string);
nikitateggi 45:067673dae242 362 blue.printf("%02x",myBleMsg->chk_sum);
nikitateggi 19:1650bbc923cc 363
nikitateggi 19:1650bbc923cc 364 }
nikitateggi 22:ffa88619551d 365
nikitateggi 22:ffa88619551d 366
nikitateggi 27:907f8ce0025e 367 uint8_t checksum_init() // function to calculate the checksum for the initial string
nikitateggi 22:ffa88619551d 368 {
nikitateggi 22:ffa88619551d 369
nikitateggi 45:067673dae242 370 uint32_t sum = 0;
nikitateggi 45:067673dae242 371 uint8_t chksum_init = 0;
nikitateggi 44:05dbea558c9a 372 sum=SOS+EOS+START_OF_FILE;
nikitateggi 45:067673dae242 373 chksum_init = sum & 0x000000FF;
nikitateggi 22:ffa88619551d 374 return chksum_init;
nikitateggi 22:ffa88619551d 375 }
nikitateggi 52:7d9ff7781bdc 376
nikitateggi 27:907f8ce0025e 377 uint8_t checksum_last() // function to calculate the checksum for the last string
nikitateggi 22:ffa88619551d 378 {
nikitateggi 22:ffa88619551d 379
nikitateggi 45:067673dae242 380 uint32_t sum = 0;
nikitateggi 45:067673dae242 381 uint8_t chksum_last = 0;
nikitateggi 44:05dbea558c9a 382 sum=SOS+EOS+END_OF_FILE; // changed //16/06 #define all the values removing structure
nikitateggi 22:ffa88619551d 383 chksum_last=sum & 0x000000FF;
nikitateggi 22:ffa88619551d 384 return chksum_last;
nikitateggi 22:ffa88619551d 385 }
nikitateggi 22:ffa88619551d 386
nikitateggi 45:067673dae242 387 void send_last_string() // function to send the last string to the bluetooth // which determines the end of file
nikitateggi 22:ffa88619551d 388 {
nikitateggi 45:067673dae242 389 uint8_t sum_last=0;
nikitateggi 45:067673dae242 390 myBleMsg->start_of_string = SOS;
nikitateggi 45:067673dae242 391 myBleMsg->length_file = 0;
nikitateggi 45:067673dae242 392 myBleMsg->proto=END_OF_FILE;
nikitateggi 45:067673dae242 393 sum_last=checksum_last();
nikitateggi 45:067673dae242 394 myBleMsg->chk_sum=sum_last;
nikitateggi 45:067673dae242 395 blue.printf("%02x",myBleMsg->start_of_string);
nikitateggi 45:067673dae242 396 blue.printf("%02x",myBleMsg->proto);
nikitateggi 45:067673dae242 397 blue.printf("%08x",myBleMsg->length_file); // chnged
nikitateggi 45:067673dae242 398 myBleMsg->end_of_string=EOS;
nikitateggi 45:067673dae242 399 blue.printf("%02x",myBleMsg->end_of_string);
nikitateggi 45:067673dae242 400 blue.printf("%02x",myBleMsg->chk_sum);
nikitateggi 45:067673dae242 401
nikitateggi 45:067673dae242 402 }
nikitateggi 22:ffa88619551d 403
nikitateggi 45:067673dae242 404 void send_data_str1() // function to send a part of the structure // after this raw data is sent//
nikitateggi 45:067673dae242 405 {
nikitateggi 45:067673dae242 406 myBleMsg->start_of_string=SOS;
nikitateggi 45:067673dae242 407 myBleMsg->length_file=(counter*4);
nikitateggi 45:067673dae242 408 myBleMsg->proto=DATA_TRFR;
nikitateggi 45:067673dae242 409 blue.printf("%02x",myBleMsg->start_of_string);
nikitateggi 45:067673dae242 410 blue.printf("%02x",myBleMsg->proto); // chnaged
nikitateggi 45:067673dae242 411 blue.printf("%08x",myBleMsg->length_file);
nikitateggi 52:7d9ff7781bdc 412
nikitateggi 45:067673dae242 413 }
nikitateggi 19:1650bbc923cc 414
nikitateggi 19:1650bbc923cc 415
nikitateggi 19:1650bbc923cc 416
nikitateggi 45:067673dae242 417 void send_data_str2(uint8_t check_sum) // after raw data// this last part of structure is sent
nikitateggi 45:067673dae242 418 {
nikitateggi 45:067673dae242 419 myBleMsg->chk_sum=check_sum;
nikitateggi 45:067673dae242 420 myBleMsg->end_of_string=EOS;
nikitateggi 45:067673dae242 421 blue.printf("%02x",myBleMsg->end_of_string);
nikitateggi 45:067673dae242 422 blue.printf("%02x",myBleMsg->chk_sum);
nikitateggi 45:067673dae242 423
nikitateggi 45:067673dae242 424 }
nikitateggi 19:1650bbc923cc 425
nikitateggi 52:7d9ff7781bdc 426
nikitateggi 31:0f67acfc6236 427 uint8_t checksum_struct(const uint8_t data[], uint16_t numBytes) // calculating checksum for
nikitateggi 31:0f67acfc6236 428 {
nikitateggi 31:0f67acfc6236 429 uint32_t chksum_struct = 0;
nikitateggi 31:0f67acfc6236 430 uint16_t index = 0;
nikitateggi 31:0f67acfc6236 431
nikitateggi 31:0f67acfc6236 432 for (index=0U; index < (numBytes-1); index++)
nikitateggi 31:0f67acfc6236 433 {
nikitateggi 31:0f67acfc6236 434 chksum_struct += data[index];
nikitateggi 31:0f67acfc6236 435 //blue.printf("data=%02x\n",data[index]);
nikitateggi 31:0f67acfc6236 436
nikitateggi 31:0f67acfc6236 437 }
nikitateggi 31:0f67acfc6236 438 // blue.printf("%08x\n",chksum_struct);
nikitateggi 31:0f67acfc6236 439 return chksum_struct;
nikitateggi 22:ffa88619551d 440 }
nikitateggi 52:7d9ff7781bdc 441
nikitateggi 52:7d9ff7781bdc 442
nikitateggi 44:05dbea558c9a 443 uint8_t checksum_rawdata(const uint8_t data[], uint32_t numBytes) // this function to calculate the checksum for the raw data
nikitateggi 31:0f67acfc6236 444 {
nikitateggi 52:7d9ff7781bdc 445
nikitateggi 45:067673dae242 446 uint32_t sum=0;
nikitateggi 45:067673dae242 447 uint8_t chksum_datatrfr=0;
nikitateggi 45:067673dae242 448 uint32_t index = 0;
nikitateggi 45:067673dae242 449 uint32_t index1 = 0;
nikitateggi 44:05dbea558c9a 450 sum += SOS;
nikitateggi 44:05dbea558c9a 451 sum += DATA_TRFR;
nikitateggi 45:067673dae242 452 index1=(numBytes*4);
nikitateggi 45:067673dae242 453 sum +=(index1>>(8*0))&0xFF;
nikitateggi 31:0f67acfc6236 454 sum +=(index1>>(8*1))&0xFF;
nikitateggi 52:7d9ff7781bdc 455
nikitateggi 45:067673dae242 456 for (index=0U; index<(numBytes*4); index++)
nikitateggi 45:067673dae242 457 {
nikitateggi 31:0f67acfc6236 458 sum += data[index];
nikitateggi 45:067673dae242 459 }
nikitateggi 52:7d9ff7781bdc 460
nikitateggi 45:067673dae242 461 sum+=EOS;
nikitateggi 52:7d9ff7781bdc 462
nikitateggi 45:067673dae242 463 chksum_datatrfr = sum & 0x000000FF;
nikitateggi 44:05dbea558c9a 464 //mc.printf("chksum_datatrfr=%02x\n",chksum_datatrfr);
nikitateggi 45:067673dae242 465 return chksum_datatrfr;
nikitateggi 44:05dbea558c9a 466 }
nikitateggi 52:7d9ff7781bdc 467
nikitateggi 52:7d9ff7781bdc 468