Pradeep Kotipalli
/
testing_rtc
hi rtc
Fork of testing_rtc by
rtc_tst.cpp@2:c38929a198a7, 2014-12-21 (annotated)
- Committer:
- pradeepvk2208
- Date:
- Sun Dec 21 09:56:03 2014 +0000
- Revision:
- 2:c38929a198a7
- Parent:
- 1:620887c20cee
ds3234 test
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
z3on | 1:620887c20cee | 1 | #include "rtc_tst.h" |
z3on | 1:620887c20cee | 2 | #include "string.h" |
z3on | 1:620887c20cee | 3 | |
z3on | 1:620887c20cee | 4 | SPI spi(PTD6, PTD7, PTD5); // mosi, miso, sclk |
z3on | 1:620887c20cee | 5 | DigitalOut cs(D9); |
z3on | 1:620887c20cee | 6 | |
z3on | 1:620887c20cee | 7 | |
z3on | 1:620887c20cee | 8 | char* Getts() |
z3on | 1:620887c20cee | 9 | { |
z3on | 1:620887c20cee | 10 | |
z3on | 1:620887c20cee | 11 | // Setup the spi for 8 bit data, high steady state clock, |
z3on | 1:620887c20cee | 12 | // second edge capture, with a 1MHz clock rate |
z3on | 1:620887c20cee | 13 | spi.format(8,3); |
z3on | 1:620887c20cee | 14 | spi.frequency(1000000); |
z3on | 1:620887c20cee | 15 | |
z3on | 1:620887c20cee | 16 | cs = 0; |
z3on | 1:620887c20cee | 17 | spi.write(0x80); // set write register to seconds |
z3on | 1:620887c20cee | 18 | spi.write(0x00); // send value of zero |
z3on | 1:620887c20cee | 19 | |
z3on | 1:620887c20cee | 20 | //cs=1; |
z3on | 1:620887c20cee | 21 | //cs=0; |
z3on | 1:620887c20cee | 22 | spi.write(0x81); |
z3on | 1:620887c20cee | 23 | spi.write(0x00); //write reg to minutes |
z3on | 1:620887c20cee | 24 | |
z3on | 1:620887c20cee | 25 | //cs=1; |
z3on | 1:620887c20cee | 26 | //cs=0; |
z3on | 1:620887c20cee | 27 | |
z3on | 1:620887c20cee | 28 | spi.write(0x82); |
pradeepvk2208 | 2:c38929a198a7 | 29 | spi.write(0x00); //write reg to hours (00-23) |
z3on | 1:620887c20cee | 30 | |
z3on | 1:620887c20cee | 31 | spi.write(0x83); |
pradeepvk2208 | 2:c38929a198a7 | 32 | spi.write(0x00); //write reg to day (1-7) |
z3on | 1:620887c20cee | 33 | |
z3on | 1:620887c20cee | 34 | spi.write(0x84); |
pradeepvk2208 | 2:c38929a198a7 | 35 | spi.write(0x00); //write reg to date(01-31) |
z3on | 1:620887c20cee | 36 | |
z3on | 1:620887c20cee | 37 | spi.write(0x85); |
pradeepvk2208 | 2:c38929a198a7 | 38 | spi.write(0x00); //write reg to mnth(01-12) |
z3on | 1:620887c20cee | 39 | |
z3on | 1:620887c20cee | 40 | spi.write(0x86); |
pradeepvk2208 | 2:c38929a198a7 | 41 | spi.write(0x00); //write reg to year(00-99) |
z3on | 1:620887c20cee | 42 | |
z3on | 1:620887c20cee | 43 | cs=1; |
z3on | 1:620887c20cee | 44 | // Receive the contents of the seconds register |
z3on | 1:620887c20cee | 45 | |
z3on | 1:620887c20cee | 46 | |
z3on | 1:620887c20cee | 47 | |
z3on | 1:620887c20cee | 48 | |
z3on | 1:620887c20cee | 49 | cs=0; |
z3on | 1:620887c20cee | 50 | spi.write(0x00); // set read register to seconds |
z3on | 1:620887c20cee | 51 | int seconds = spi.write(0x00); // read the value by sending dummy byte |
z3on | 1:620887c20cee | 52 | |
z3on | 1:620887c20cee | 53 | //cs=1; |
z3on | 1:620887c20cee | 54 | //cs=0; |
z3on | 1:620887c20cee | 55 | |
z3on | 1:620887c20cee | 56 | spi.write(0x01); |
z3on | 1:620887c20cee | 57 | int minutes =spi.write(0x01); |
z3on | 1:620887c20cee | 58 | |
z3on | 1:620887c20cee | 59 | //cs=1; |
z3on | 1:620887c20cee | 60 | //cs=0; |
z3on | 1:620887c20cee | 61 | |
z3on | 1:620887c20cee | 62 | spi.write(0x02); |
z3on | 1:620887c20cee | 63 | int hours =spi.write(0x01); |
z3on | 1:620887c20cee | 64 | |
z3on | 1:620887c20cee | 65 | spi.write(0x03); |
z3on | 1:620887c20cee | 66 | int day =spi.write(0x01); |
z3on | 1:620887c20cee | 67 | |
z3on | 1:620887c20cee | 68 | spi.write(0x04); |
z3on | 1:620887c20cee | 69 | int date =spi.write(0x01); |
z3on | 1:620887c20cee | 70 | |
z3on | 1:620887c20cee | 71 | spi.write(0x05); |
z3on | 1:620887c20cee | 72 | int month =spi.write(0x01); |
z3on | 1:620887c20cee | 73 | |
z3on | 1:620887c20cee | 74 | spi.write(0x06); |
z3on | 1:620887c20cee | 75 | int year =spi.write(0x01); |
z3on | 1:620887c20cee | 76 | |
z3on | 1:620887c20cee | 77 | //This cs=1 is to make the chipselect line high to "deselect" the slave in our case RTC |
z3on | 1:620887c20cee | 78 | cs = 1; |
z3on | 1:620887c20cee | 79 | |
z3on | 1:620887c20cee | 80 | //This printf function is to check the timestamp function in the terminal output |
z3on | 1:620887c20cee | 81 | printf("timestamp as = %X : %X : %X : %X : %X : %X : %X\n\r", hours,minutes,seconds,day,date,month,year); |
z3on | 1:620887c20cee | 82 | |
z3on | 1:620887c20cee | 83 | |
z3on | 1:620887c20cee | 84 | printf("b4 returning tmpstmp is : %s\n",getname(year,month,date,day,hours,minutes,seconds)); |
z3on | 1:620887c20cee | 85 | return(getname(year,month,date,day,hours,minutes,seconds)); |
z3on | 1:620887c20cee | 86 | |
z3on | 1:620887c20cee | 87 | |
z3on | 1:620887c20cee | 88 | } |
z3on | 1:620887c20cee | 89 | |
z3on | 1:620887c20cee | 90 | |
z3on | 1:620887c20cee | 91 | |
z3on | 1:620887c20cee | 92 | |
z3on | 1:620887c20cee | 93 | |
z3on | 1:620887c20cee | 94 | |
z3on | 1:620887c20cee | 95 | char* getname(int year1,int month1,int date1,int day1,int hours1,int minutes1,int seconds1) |
z3on | 1:620887c20cee | 96 | { |
z3on | 1:620887c20cee | 97 | year1= hexint(year1); |
z3on | 1:620887c20cee | 98 | month1=hexint(month1); |
z3on | 1:620887c20cee | 99 | date1=hexint(date1); |
z3on | 1:620887c20cee | 100 | day1=hexint(day1); |
z3on | 1:620887c20cee | 101 | hours1=hexint(hours1); |
z3on | 1:620887c20cee | 102 | minutes1=hexint(minutes1); |
z3on | 1:620887c20cee | 103 | seconds1=hexint(seconds1); |
z3on | 1:620887c20cee | 104 | /*char y[3]=getstr(year); |
z3on | 1:620887c20cee | 105 | char m[3]=getstr(month); |
z3on | 1:620887c20cee | 106 | char dat[3]=getstr(date); |
z3on | 1:620887c20cee | 107 | char da[3]=getstr(day); |
z3on | 1:620887c20cee | 108 | char h[3]=getstr(hours); |
z3on | 1:620887c20cee | 109 | char mi[3]=getstr(minutes); |
z3on | 1:620887c20cee | 110 | char s[3]=getstr(seconds);*/ |
z3on | 1:620887c20cee | 111 | char time[15]; |
pradeepvk2208 | 2:c38929a198a7 | 112 | sprintf(time,"%2d%2d%2d%2d%2d%2d%2d",year1,month1,date1,day1,hours1,minutes1,seconds1); |
z3on | 1:620887c20cee | 113 | return(time); |
z3on | 1:620887c20cee | 114 | |
z3on | 1:620887c20cee | 115 | } |
z3on | 1:620887c20cee | 116 | |
z3on | 1:620887c20cee | 117 | int hexint(int a) |
z3on | 1:620887c20cee | 118 | { |
z3on | 1:620887c20cee | 119 | a=(a/16)*10+(a%16); |
z3on | 1:620887c20cee | 120 | return a; |
z3on | 1:620887c20cee | 121 | } |