chaithanya rss / Mbed 2 deprecated CDMS_Integrate1_0

June 30

Dependencies:   FreescaleIAP SimpleDMA mbed-rtos mbed

Fork of CDMS_CODE by shubham c

cdms_rtc.h@191:d14b1c783736, 2016-07-02 (annotated)

Committer:
chaithanyarss
Date:
Sat Jul 02 13:36:18 2016 +0000
Revision:
191:d14b1c783736
Parent:
190:28a07943dded 
;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
aniruddhv 52:0bd68655c651 1 void FCTN_CDMS_INIT_RTC()
aniruddhv 52:0bd68655c651 2 {
ee12b079 93:4d76de54a699 3 SPI_mutex.lock();
aniruddhv 52:0bd68655c651 4 gCS_RTC=1;
aniruddhv 52:0bd68655c651 5 spi.format(8,0);
aniruddhv 52:0bd68655c651 6 spi.frequency(1000000);
chaithanyarss 189:fba4aeebf004 7 //clearing the halt bit
aniruddhv 52:0bd68655c651 8 gCS_RTC=1;
aniruddhv 52:0bd68655c651 9 gCS_RTC=0;
aniruddhv 52:0bd68655c651 10 spi.write(0x8C);
aniruddhv 52:0bd68655c651 11 spi.write(0x00);
chaithanyarss 189:fba4aeebf004 12
chaithanyarss 189:fba4aeebf004 13 //clearing the OF bit
aniruddhv 52:0bd68655c651 14 gCS_RTC=1;
aniruddhv 52:0bd68655c651 15 gCS_RTC=0;
aniruddhv 52:0bd68655c651 16 spi.write(0x8F);
aniruddhv 52:0bd68655c651 17 spi.write(0x00);
chaithanyarss 189:fba4aeebf004 18
aniruddhv 52:0bd68655c651 19 //century bits
aniruddhv 52:0bd68655c651 20 gCS_RTC=1;
aniruddhv 52:0bd68655c651 21 gCS_RTC=0;
aniruddhv 52:0bd68655c651 22 spi.write(0x80|0x03);
aniruddhv 52:0bd68655c651 23 spi.write(0x00);
chaithanyarss 189:fba4aeebf004 24
chaithanyarss 189:fba4aeebf004 25 //Kick starting the oscillator
aniruddhv 52:0bd68655c651 26 gCS_RTC=1;
aniruddhv 52:0bd68655c651 27 gCS_RTC=0;
aniruddhv 52:0bd68655c651 28 spi.write(0x81); //register address with write flag
chaithanyarss 190:28a07943dded 29 spi.write(0x80); //enabling stop bit in the seconds register
chaithanyarss 189:fba4aeebf004 30
aniruddhv 52:0bd68655c651 31 gCS_RTC=1;
aniruddhv 52:0bd68655c651 32 gCS_RTC=0;
aniruddhv 52:0bd68655c651 33 spi.write(0x81);
chaithanyarss 190:28a07943dded 34 spi.write(0x00); //disabling the stop bit to restart the oscillator
chaithanyarss 189:fba4aeebf004 35
chaithanyarss 189:fba4aeebf004 36
aniruddhv 52:0bd68655c651 37 gCS_RTC=1;
aniruddhv 52:0bd68655c651 38 gCS_RTC=0;
chaithanyarss 189:fba4aeebf004 39 spi.write(0x80);
aniruddhv 52:0bd68655c651 40 spi.write(0x01); // set milliseconds value to 00
aniruddhv 52:0bd68655c651 41 gCS_RTC=1;
chaithanyarss 189:fba4aeebf004 42
aniruddhv 52:0bd68655c651 43 gCS_RTC=0;
chaithanyarss 189:fba4aeebf004 44 spi.write(0x81);
aniruddhv 52:0bd68655c651 45 spi.write(0x01); //set seconds value to 00
aniruddhv 52:0bd68655c651 46 gCS_RTC=1;
chaithanyarss 189:fba4aeebf004 47
aniruddhv 52:0bd68655c651 48 gCS_RTC=0;
chaithanyarss 189:fba4aeebf004 49 spi.write(0x82);
aniruddhv 52:0bd68655c651 50 spi.write(0x01);//set minutes value to 00
aniruddhv 52:0bd68655c651 51 gCS_RTC=1;
chaithanyarss 189:fba4aeebf004 52
aniruddhv 52:0bd68655c651 53 gCS_RTC=0;
chaithanyarss 189:fba4aeebf004 54 spi.write(0x83);
aniruddhv 52:0bd68655c651 55 spi.write(0x23); //set the hours to 01
aniruddhv 52:0bd68655c651 56 gCS_RTC=1;
chaithanyarss 189:fba4aeebf004 57
aniruddhv 52:0bd68655c651 58 gCS_RTC=0;
chaithanyarss 189:fba4aeebf004 59 spi.write(0x84);
aniruddhv 52:0bd68655c651 60 spi.write(0x01); //set day of the week to 01
aniruddhv 52:0bd68655c651 61 gCS_RTC=1;
chaithanyarss 189:fba4aeebf004 62
aniruddhv 52:0bd68655c651 63 gCS_RTC=0;
chaithanyarss 189:fba4aeebf004 64 spi.write(0x85);
aniruddhv 52:0bd68655c651 65 spi.write(0x31); //set date of the month to 01
aniruddhv 52:0bd68655c651 66 gCS_RTC=1;
chaithanyarss 189:fba4aeebf004 67
aniruddhv 52:0bd68655c651 68 gCS_RTC=0;
chaithanyarss 189:fba4aeebf004 69 spi.write(0x86);
aniruddhv 52:0bd68655c651 70 spi.write(0x12); //set month to 01
aniruddhv 52:0bd68655c651 71 gCS_RTC=1;
chaithanyarss 189:fba4aeebf004 72
aniruddhv 52:0bd68655c651 73 gCS_RTC=0;
chaithanyarss 189:fba4aeebf004 74 spi.write(0x87);
aniruddhv 52:0bd68655c651 75 spi.write(0x01); //set year to 00(2000)
aniruddhv 52:0bd68655c651 76 gCS_RTC=1;
chaithanyarss 187:2c7263530c57 77 gPC.puts("\r\nrtc initalised\r\n");
ee12b079 93:4d76de54a699 78 SPI_mutex.unlock();
aniruddhv 52:0bd68655c651 79 }
chaithanyarss 189:fba4aeebf004 80
aniruddhv 52:0bd68655c651 81 uint64_t FCTN_CDMS_RD_RTC()
chaithanyarss 189:fba4aeebf004 82 {
chaithanyarss 189:fba4aeebf004 83 SPI_mutex.lock();
chaithanyarss 189:fba4aeebf004 84 uint8_t response;
chaithanyarss 189:fba4aeebf004 85
chaithanyarss 189:fba4aeebf004 86 gCS_RTC=1;
chaithanyarss 189:fba4aeebf004 87 gCS_RTC=0;
chaithanyarss 189:fba4aeebf004 88 spi.write(0x0F);
chaithanyarss 189:fba4aeebf004 89 response = (spi.write(0x00))&0x04;
chaithanyarss 190:28a07943dded 90
chaithanyarss 189:fba4aeebf004 91 gCS_RTC=1;
chaithanyarss 189:fba4aeebf004 92 gCS_RTC=0;
chaithanyarss 189:fba4aeebf004 93 spi.write(0x00); //reading centiseconds register
chaithanyarss 189:fba4aeebf004 94 response = spi.write(0x00); // read the value by sending dummy byte
chaithanyarss 189:fba4aeebf004 95 uint8_t centiseconds = ((response&0xF0)>>4)*10+(response&0x0F)*1;
chaithanyarss 187:2c7263530c57 96
chaithanyarss 189:fba4aeebf004 97 response =spi.write(0x00);
chaithanyarss 189:fba4aeebf004 98 uint8_t seconds = ((response&0x70)>>4)*10+(response&0x0F)*1;
chaithanyarss 187:2c7263530c57 99
chaithanyarss 189:fba4aeebf004 100 response =spi.write(0x00);
chaithanyarss 189:fba4aeebf004 101 uint8_t minutes = ((response&0x70)>>4)*10+(response&0x0F)*1;
chaithanyarss 187:2c7263530c57 102
chaithanyarss 189:fba4aeebf004 103 response=spi.write(0x00);
chaithanyarss 189:fba4aeebf004 104 uint8_t hours = ((response&0x30)>>4)*10+(response&0x0F)*1;
chaithanyarss 187:2c7263530c57 105
chaithanyarss 189:fba4aeebf004 106 uint8_t day =spi.write(0x00);
chaithanyarss 187:2c7263530c57 107
chaithanyarss 189:fba4aeebf004 108 response =spi.write(0x00);
chaithanyarss 189:fba4aeebf004 109 uint8_t date = ((response&0x30)>>4)*10+(response&0x0F)*1;
chaithanyarss 187:2c7263530c57 110
chaithanyarss 189:fba4aeebf004 111 response =spi.write(0x00);
chaithanyarss 189:fba4aeebf004 112 uint8_t month = ((response&0x10)>>4)*10+(response&0x0F)*1;
chaithanyarss 187:2c7263530c57 113
chaithanyarss 189:fba4aeebf004 114 response =spi.write(0x00);
chaithanyarss 189:fba4aeebf004 115 uint8_t year = ((response&0xF0)>>4)*10+(response&0x0F)*1;
chaithanyarss 189:fba4aeebf004 116 year = (year == 17)?0x00:(year == 18)?0x01:(year == 19)?0x02:(year == 20)?0x03:0x00;
chaithanyarss 189:fba4aeebf004 117 gCS_RTC=1;
chaithanyarss 187:2c7263530c57 118
chaithanyarss 189:fba4aeebf004 119 uint64_t time;
chaithanyarss 189:fba4aeebf004 120 time = 0;
chaithanyarss 189:fba4aeebf004 121 time = time|(((uint64_t)(centiseconds&0x7F)));
chaithanyarss 189:fba4aeebf004 122 time = time|(((uint64_t)(seconds&0x3F))<<7);
chaithanyarss 189:fba4aeebf004 123 time = time|(((uint64_t)(minutes&0x3F))<<13);
chaithanyarss 189:fba4aeebf004 124 time = time|(((uint64_t)(hours&0x1F))<<19);
chaithanyarss 189:fba4aeebf004 125 time = time|(((uint64_t)(day&0x1F))<<24);
chaithanyarss 189:fba4aeebf004 126 time = time|(((uint64_t)(month&0x07))<<29);
chaithanyarss 189:fba4aeebf004 127 time = time|(((uint64_t)(year&0x03))<<33);
chaithanyarss 189:fba4aeebf004 128 time = (time&0x00000007FFFFFFFF);
chaithanyarss 187:2c7263530c57 129
chaithanyarss 189:fba4aeebf004 130 SPI_mutex.unlock();
chaithanyarss 189:fba4aeebf004 131 return time;
chaithanyarss 190:28a07943dded 132 }
chaithanyarss 190:28a07943dded 133