This program is given as a sample exercise. It has all the functionality to be used on a BLE Nano device and to connect to SimpleChat application for Android/ iOS from RebBearLab. The aim of the exercise is to read a voltage and then to convert as good as possible the appropriate temperature in Celsius degrees. AI5 pin is considered for reading the voltage for the termistor. The ADC of AI5 is called every second. The function to be updated : update_measurements() from main.cpp file.

Dependencies:   BLE_API mbed nRF51822

Fork of nRF51822_DataLogger_with_Chat by Valentin Tanasa

Committer:
tanasaro10
Date:
Fri May 06 18:14:18 2016 +0000
Revision:
11:baafa4f7a15e
Parent:
10:c7d53e4e0602
Child:
12:7772974713ac
minor updates

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tanasaro10 9:303d3628986a 1 #include "myData.h"
tanasaro10 9:303d3628986a 2
tanasaro10 9:303d3628986a 3
tanasaro10 9:303d3628986a 4 uint8_t eNrDaysPerMonth[12]= {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
tanasaro10 9:303d3628986a 5 static uint8_t g_currPage = MAX_PAGE_NUM; // current page in Flash to be write
tanasaro10 9:303d3628986a 6
tanasaro10 9:303d3628986a 7 uint8_t flash_currPage(){
tanasaro10 9:303d3628986a 8 return g_currPage;
tanasaro10 9:303d3628986a 9 }
tanasaro10 9:303d3628986a 10
tanasaro10 9:303d3628986a 11 uint8_t flash_go_nextPage(){
tanasaro10 9:303d3628986a 12 g_currPage --;
tanasaro10 9:303d3628986a 13 if (g_currPage < MIN_PAGE_NUM) {
tanasaro10 9:303d3628986a 14 g_currPage = MAX_PAGE_NUM;
tanasaro10 9:303d3628986a 15 }
tanasaro10 9:303d3628986a 16 return g_currPage;
tanasaro10 9:303d3628986a 17 }
tanasaro10 9:303d3628986a 18
tanasaro10 9:303d3628986a 19
tanasaro10 9:303d3628986a 20 uint8_t flash_prev_N_Page(uint8_t nr_of_pages){
tanasaro10 9:303d3628986a 21 uint8_t retVal;
tanasaro10 9:303d3628986a 22 retVal = g_currPage + nr_of_pages;
tanasaro10 9:303d3628986a 23
tanasaro10 9:303d3628986a 24 if (retVal > MAX_PAGE_NUM ) {
tanasaro10 9:303d3628986a 25 retVal = MIN_PAGE_NUM + (retVal % MAX_PAGE_NUM - 1);
tanasaro10 9:303d3628986a 26 }
tanasaro10 9:303d3628986a 27 return retVal;
tanasaro10 9:303d3628986a 28 }
tanasaro10 9:303d3628986a 29
tanasaro10 11:baafa4f7a15e 30 void search_latest_in_flash(mdate_time_t * outDateTime){
tanasaro10 11:baafa4f7a15e 31 uint8_t page_nr, sizeB,temp[6];
tanasaro10 9:303d3628986a 32 uint16_t max_page=(uint16_t)MAX_PAGE_NUM+1u;
tanasaro10 9:303d3628986a 33 int retVal;
tanasaro10 11:baafa4f7a15e 34 mdate_time_t max_datetime={16,1,1,0,0,0}, inv_datetime={255,255,255,255,255,255};
tanasaro10 9:303d3628986a 35
tanasaro10 11:baafa4f7a15e 36 sizeB=sizeof(mdate_time_t);
tanasaro10 9:303d3628986a 37 uint32_t* p_curr_addr;
tanasaro10 9:303d3628986a 38
tanasaro10 9:303d3628986a 39 for (page_nr = MAX_PAGE_NUM; page_nr>= MIN_PAGE_NUM; page_nr --){
tanasaro10 9:303d3628986a 40 p_curr_addr= (uint32_t *)((uint16_t)BLE_FLASH_PAGE_SIZE * page_nr);
tanasaro10 9:303d3628986a 41 p_curr_addr += 2; // skip the magic number and the word count
tanasaro10 11:baafa4f7a15e 42
tanasaro10 11:baafa4f7a15e 43 memcpy(temp, p_curr_addr, sizeB);
tanasaro10 11:baafa4f7a15e 44 retVal = memcmp(&temp, &inv_datetime, sizeB);
tanasaro10 9:303d3628986a 45 if (retVal!=0) {
tanasaro10 11:baafa4f7a15e 46 retVal = memcmp(&temp, &max_datetime, sizeB);
tanasaro10 11:baafa4f7a15e 47 if (retVal >0) {
tanasaro10 11:baafa4f7a15e 48 memcpy(&max_datetime, &temp, sizeB);
tanasaro10 11:baafa4f7a15e 49 max_page= page_nr;
tanasaro10 9:303d3628986a 50 }
tanasaro10 11:baafa4f7a15e 51 }
tanasaro10 9:303d3628986a 52 }
tanasaro10 9:303d3628986a 53
tanasaro10 11:baafa4f7a15e 54 memcpy(outDateTime, &max_datetime, sizeB);
tanasaro10 9:303d3628986a 55 g_currPage= (uint8_t)(max_page-1u);
tanasaro10 9:303d3628986a 56 }
tanasaro10 9:303d3628986a 57
tanasaro10 11:baafa4f7a15e 58 void update_time(mdatetime_manager_t* myDateTimeVar, uint16_t tseconds){
tanasaro10 11:baafa4f7a15e 59 //memcpy(&myDateTimeVar->newDateTime, &myDateTimeVar->currentDateTime, sizeof(mdate_time_t));
tanasaro10 11:baafa4f7a15e 60 if (myDateTimeVar->updateDateTime ==false){
tanasaro10 11:baafa4f7a15e 61 myDateTimeVar->newDateTime.seconds = (myDateTimeVar->currentDateTime.seconds + tseconds)% 60;
tanasaro10 11:baafa4f7a15e 62 myDateTimeVar->newDateTime.minutes = (myDateTimeVar->currentDateTime.minutes + ((tseconds + myDateTimeVar->currentDateTime.seconds) / 60))%60;
tanasaro10 11:baafa4f7a15e 63 if (myDateTimeVar->newDateTime.minutes< myDateTimeVar->currentDateTime.minutes ) {
tanasaro10 11:baafa4f7a15e 64 myDateTimeVar->currentDateTime.hours++;
tanasaro10 11:baafa4f7a15e 65 }
tanasaro10 11:baafa4f7a15e 66 myDateTimeVar->newDateTime.hours = (myDateTimeVar->currentDateTime.hours + (tseconds / 3600+myDateTimeVar->newDateTime.minutes/60))%24;
tanasaro10 11:baafa4f7a15e 67 if (myDateTimeVar->newDateTime.hours < myDateTimeVar->currentDateTime.hours){
tanasaro10 11:baafa4f7a15e 68 myDateTimeVar->newDateTime.day = (myDateTimeVar->currentDateTime.day + 1)%(eNrDaysPerMonth[myDateTimeVar->currentDateTime.month+1]+1);
tanasaro10 11:baafa4f7a15e 69 if (myDateTimeVar->newDateTime.day < myDateTimeVar->currentDateTime.day ){
tanasaro10 11:baafa4f7a15e 70 myDateTimeVar->newDateTime.month = (myDateTimeVar->currentDateTime.month+ 1)%13+1;
tanasaro10 11:baafa4f7a15e 71 if (myDateTimeVar->newDateTime.month< myDateTimeVar->currentDateTime.month){
tanasaro10 11:baafa4f7a15e 72 myDateTimeVar->newDateTime.year = (myDateTimeVar->currentDateTime.year+ 1);
tanasaro10 11:baafa4f7a15e 73 }
tanasaro10 11:baafa4f7a15e 74 }
tanasaro10 11:baafa4f7a15e 75 }
tanasaro10 11:baafa4f7a15e 76 } else {
tanasaro10 11:baafa4f7a15e 77 myDateTimeVar->updateDateTime =false;
tanasaro10 9:303d3628986a 78 }
tanasaro10 9:303d3628986a 79
tanasaro10 11:baafa4f7a15e 80 if (myDateTimeVar->updateDateTime ==true){ // there is a new Date ?
tanasaro10 11:baafa4f7a15e 81 myDateTimeVar->updateDateTime =true;
tanasaro10 9:303d3628986a 82 }
tanasaro10 11:baafa4f7a15e 83 memcpy(&myDateTimeVar->currentDateTime,&myDateTimeVar->newDateTime, sizeof(mdate_time_t));
tanasaro10 9:303d3628986a 84 }
tanasaro10 9:303d3628986a 85
tanasaro10 9:303d3628986a 86
tanasaro10 9:303d3628986a 87 int buzz_int(PwmOut* buzzer, uint8_t period, uint8_t duty_cycle){
tanasaro10 9:303d3628986a 88 int retVal = 0;
tanasaro10 9:303d3628986a 89 if ((duty_cycle<10)&&(period<10)){
tanasaro10 9:303d3628986a 90 if (period!=0) {
tanasaro10 9:303d3628986a 91 buzzer->period_ms(period);
tanasaro10 9:303d3628986a 92 *buzzer = (10.0 - (float)duty_cycle)/9.0;
tanasaro10 9:303d3628986a 93 } else {
tanasaro10 9:303d3628986a 94 *buzzer = 0;
tanasaro10 9:303d3628986a 95 }
tanasaro10 9:303d3628986a 96 } else {
tanasaro10 9:303d3628986a 97 retVal=-1;
tanasaro10 9:303d3628986a 98 }
tanasaro10 9:303d3628986a 99 return retVal;
tanasaro10 9:303d3628986a 100 }
tanasaro10 9:303d3628986a 101
tanasaro10 9:303d3628986a 102 void assert_error_app(bool condition, Serial *pc, uint16_t error, uint16_t line, const char* file){
tanasaro10 9:303d3628986a 103 if (condition) {
tanasaro10 9:303d3628986a 104 pc->printf("App err = %d, line = %d, file = %s\r\n",error, line, file);
tanasaro10 9:303d3628986a 105 }
tanasaro10 9:303d3628986a 106 }