Repository for CDMS code
Dependencies: SimpleDMA mbed-rtos mbed eeprom
Fork of COM_MNG_TMTC_SIMPLE by
cdms_rtc.h@197:1369ef45b49e, 2016-06-30 (annotated)
- Committer:
- ee12b079
- Date:
- Thu Jun 30 10:51:38 2016 +0000
- Revision:
- 197:1369ef45b49e
- Parent:
- 115:2e1144a41d76
- Child:
- 209:63e9c8f8b5d2
latest revision (before sdcard testing) ready to be tested bypassing COM
Who changed what in which revision?
User | Revision | Line number | New 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); |
aniruddhv | 52:0bd68655c651 | 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); |
aniruddhv | 52:0bd68655c651 | 12 | |
aniruddhv | 52:0bd68655c651 | 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); |
aniruddhv | 52:0bd68655c651 | 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); |
aniruddhv | 52:0bd68655c651 | 24 | |
aniruddhv | 52:0bd68655c651 | 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 |
aniruddhv | 52:0bd68655c651 | 29 | spi.write(0x80);//enabling stop bit in the seconds register |
aniruddhv | 52:0bd68655c651 | 30 | |
aniruddhv | 52:0bd68655c651 | 31 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 32 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 33 | spi.write(0x81); |
aniruddhv | 52:0bd68655c651 | 34 | spi.write(0x00);//disabling the stop bit to restart the oscillator |
aniruddhv | 52:0bd68655c651 | 35 | |
aniruddhv | 52:0bd68655c651 | 36 | |
aniruddhv | 52:0bd68655c651 | 37 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 38 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 39 | spi.write(0x80); |
aniruddhv | 52:0bd68655c651 | 40 | spi.write(0x01); // set milliseconds value to 00 |
aniruddhv | 52:0bd68655c651 | 41 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 42 | |
aniruddhv | 52:0bd68655c651 | 43 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 44 | spi.write(0x81); |
aniruddhv | 52:0bd68655c651 | 45 | spi.write(0x01); //set seconds value to 00 |
aniruddhv | 52:0bd68655c651 | 46 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 47 | |
aniruddhv | 52:0bd68655c651 | 48 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 49 | spi.write(0x82); |
aniruddhv | 52:0bd68655c651 | 50 | spi.write(0x01);//set minutes value to 00 |
aniruddhv | 52:0bd68655c651 | 51 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 52 | |
aniruddhv | 52:0bd68655c651 | 53 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 54 | spi.write(0x83); |
aniruddhv | 52:0bd68655c651 | 55 | spi.write(0x23); //set the hours to 01 |
aniruddhv | 52:0bd68655c651 | 56 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 57 | |
aniruddhv | 52:0bd68655c651 | 58 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 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; |
aniruddhv | 52:0bd68655c651 | 62 | |
aniruddhv | 52:0bd68655c651 | 63 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 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; |
aniruddhv | 52:0bd68655c651 | 67 | |
aniruddhv | 52:0bd68655c651 | 68 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 69 | spi.write(0x86); |
aniruddhv | 52:0bd68655c651 | 70 | spi.write(0x12); //set month to 01 |
aniruddhv | 52:0bd68655c651 | 71 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 72 | |
aniruddhv | 52:0bd68655c651 | 73 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 74 | spi.write(0x87); |
aniruddhv | 52:0bd68655c651 | 75 | spi.write(0x01); //set year to 00(2000) |
aniruddhv | 52:0bd68655c651 | 76 | gCS_RTC=1; |
ee12b079 | 115:2e1144a41d76 | 77 | gPC.puts("\n\r rtc initalised \n"); |
ee12b079 | 93:4d76de54a699 | 78 | SPI_mutex.unlock(); |
aniruddhv | 52:0bd68655c651 | 79 | } |
aniruddhv | 52:0bd68655c651 | 80 | |
aniruddhv | 52:0bd68655c651 | 81 | uint64_t FCTN_CDMS_RD_RTC() |
aniruddhv | 52:0bd68655c651 | 82 | { |
ee12b079 | 93:4d76de54a699 | 83 | SPI_mutex.lock(); |
aniruddhv | 52:0bd68655c651 | 84 | uint8_t response; |
ee12b079 | 197:1369ef45b49e | 85 | //gPC.printf("\n\r Entered rtc\n"); |
aniruddhv | 52:0bd68655c651 | 86 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 87 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 88 | spi.write(0x00); //reading milliseconds register |
aniruddhv | 52:0bd68655c651 | 89 | response = spi.write(0x00); // read the value by sending dummy byte |
aniruddhv | 52:0bd68655c651 | 90 | uint8_t centiseconds = (uint8_t(response&0xF0)>>4)*10+uint8_t(response&0x0F)*1; |
aniruddhv | 52:0bd68655c651 | 91 | |
aniruddhv | 52:0bd68655c651 | 92 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 93 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 94 | spi.write(0x01); //reading seconds register |
aniruddhv | 52:0bd68655c651 | 95 | response =spi.write(0x01); |
aniruddhv | 52:0bd68655c651 | 96 | uint8_t seconds = ((response&0x70)>>4)*10+(response&0x0F)*1; |
aniruddhv | 52:0bd68655c651 | 97 | |
aniruddhv | 52:0bd68655c651 | 98 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 99 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 100 | spi.write(0x02); //reading minutes register |
aniruddhv | 52:0bd68655c651 | 101 | response =spi.write(0x01); |
aniruddhv | 52:0bd68655c651 | 102 | uint8_t minutes = ((response&0xF0)>>4)*10+(response&0x0F)*1; |
aniruddhv | 52:0bd68655c651 | 103 | |
aniruddhv | 52:0bd68655c651 | 104 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 105 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 106 | spi.write(0x03); //reading hours register |
aniruddhv | 52:0bd68655c651 | 107 | response=spi.write(0x01); |
aniruddhv | 52:0bd68655c651 | 108 | uint8_t hours = ((response&0x30)>>4)*10+(response&0x0F)*1; |
aniruddhv | 52:0bd68655c651 | 109 | |
aniruddhv | 52:0bd68655c651 | 110 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 111 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 112 | spi.write(0x04); //reading day's register |
aniruddhv | 52:0bd68655c651 | 113 | uint8_t day =spi.write(0x01); |
aniruddhv | 52:0bd68655c651 | 114 | |
aniruddhv | 52:0bd68655c651 | 115 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 116 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 117 | spi.write(0x05); //reading date register |
aniruddhv | 52:0bd68655c651 | 118 | response =spi.write(0x01); |
aniruddhv | 52:0bd68655c651 | 119 | uint8_t date = ((response&0x30)>>4)*10+(response&0x0F)*1; |
aniruddhv | 52:0bd68655c651 | 120 | |
aniruddhv | 52:0bd68655c651 | 121 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 122 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 123 | spi.write(0x06); //reading month registe |
aniruddhv | 52:0bd68655c651 | 124 | response =spi.write(0x01); |
aniruddhv | 52:0bd68655c651 | 125 | uint8_t month = ((response&0x10)>>4)*10+(response&0x0F)*1; |
aniruddhv | 52:0bd68655c651 | 126 | |
aniruddhv | 52:0bd68655c651 | 127 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 128 | gCS_RTC=0; |
aniruddhv | 52:0bd68655c651 | 129 | spi.write(0x07); //reading year's registe |
aniruddhv | 52:0bd68655c651 | 130 | response =spi.write(0x01); |
aniruddhv | 52:0bd68655c651 | 131 | uint8_t year = ((response&0xF0)>>4)*10+(response&0x0F)*1; |
aniruddhv | 52:0bd68655c651 | 132 | gCS_RTC=1; |
aniruddhv | 52:0bd68655c651 | 133 | //sprintf(Time_stamp,"%02d%02d%02d%02d%02d%02d%02d%02d",year, month, date, day, hours, minutes, seconds, milliseconds ); |
aniruddhv | 52:0bd68655c651 | 134 | uint8_t Time_stamp[8] = {year, month, date, day, hours, minutes, seconds, centiseconds}; |
ee12b079 | 96:4ca92f9775e0 | 135 | for(int i= 0; i<8;i++); |
ee12b079 | 96:4ca92f9775e0 | 136 | //printf("%d\t",Time_stamp[i]); |
ee12b079 | 96:4ca92f9775e0 | 137 | //printf("read\r\n"); |
aniruddhv | 52:0bd68655c651 | 138 | uint64_t time; |
aniruddhv | 52:0bd68655c651 | 139 | time = 0; |
aniruddhv | 52:0bd68655c651 | 140 | time = time|(((uint64_t)(centiseconds&0x7F))); |
aniruddhv | 52:0bd68655c651 | 141 | time = time|(((uint64_t)(seconds&0x3F))<<7); |
aniruddhv | 52:0bd68655c651 | 142 | time = time|(((uint64_t)(minutes&0x3F))<<13); |
aniruddhv | 52:0bd68655c651 | 143 | time = time|(((uint64_t)(hours&0x1F))<<19); |
aniruddhv | 52:0bd68655c651 | 144 | time = time|(((uint64_t)(day&0x1F))<<24); |
aniruddhv | 52:0bd68655c651 | 145 | time = time|(((uint64_t)(month&0x07))<<29); |
aniruddhv | 52:0bd68655c651 | 146 | time = time|(((uint64_t)(year&0x03))<<33); |
aniruddhv | 52:0bd68655c651 | 147 | time = (time&0x00000007FFFFFFFF); |
ee12b079 | 197:1369ef45b49e | 148 | //gPC.printf("\n\r%x%x", (int)(time >> 32), (int)(time)); |
ee12b079 | 197:1369ef45b49e | 149 | //gPC.printf("\n\r0x%016llx\n\r", time); |
aniruddhv | 52:0bd68655c651 | 150 | return time; |
ee12b079 | 93:4d76de54a699 | 151 | SPI_mutex.unlock(); |
aniruddhv | 52:0bd68655c651 | 152 | } |