Pradeep Kotipalli / Mbed 2 deprecated rtc_justtest

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Dependencies:   mbed

main.cpp@0:a07e5a4c94bb, 2014-12-20 (annotated)

Committer:
pradeepvk2208
Date:
Sat Dec 20 12:17:15 2014 +0000
Revision:
0:a07e5a4c94bb
dfghj

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pradeepvk2208 0:a07e5a4c94bb 1 #include "mbed.h"
pradeepvk2208 0:a07e5a4c94bb 2
pradeepvk2208 0:a07e5a4c94bb 3 SPI spi(PTD6, PTD7, PTD5); // mosi, miso, sclk
pradeepvk2208 0:a07e5a4c94bb 4 DigitalOut cs(D9);
pradeepvk2208 0:a07e5a4c94bb 5
pradeepvk2208 0:a07e5a4c94bb 6
pradeepvk2208 0:a07e5a4c94bb 7 int main()
pradeepvk2208 0:a07e5a4c94bb 8 {
pradeepvk2208 0:a07e5a4c94bb 9
pradeepvk2208 0:a07e5a4c94bb 10
pradeepvk2208 0:a07e5a4c94bb 11
pradeepvk2208 0:a07e5a4c94bb 12 // Setup the spi for 8 bit data, high steady state clock,
pradeepvk2208 0:a07e5a4c94bb 13 // second edge capture, with a 1MHz clock rate
pradeepvk2208 0:a07e5a4c94bb 14 spi.format(8,3);
pradeepvk2208 0:a07e5a4c94bb 15 spi.frequency(1000000);
pradeepvk2208 0:a07e5a4c94bb 16
pradeepvk2208 0:a07e5a4c94bb 17 cs = 0;
pradeepvk2208 0:a07e5a4c94bb 18 spi.write(0x80); // set write register to seconds
pradeepvk2208 0:a07e5a4c94bb 19 spi.write(0x01); // send value of zero
pradeepvk2208 0:a07e5a4c94bb 20
pradeepvk2208 0:a07e5a4c94bb 21 //cs=1;
pradeepvk2208 0:a07e5a4c94bb 22 //cs=0;
pradeepvk2208 0:a07e5a4c94bb 23 spi.write(0x81);
pradeepvk2208 0:a07e5a4c94bb 24 spi.write(0x58); //write reg to minutes
pradeepvk2208 0:a07e5a4c94bb 25
pradeepvk2208 0:a07e5a4c94bb 26 //cs=1;
pradeepvk2208 0:a07e5a4c94bb 27 //cs=0;
pradeepvk2208 0:a07e5a4c94bb 28
pradeepvk2208 0:a07e5a4c94bb 29 spi.write(0x82);
pradeepvk2208 0:a07e5a4c94bb 30 spi.write(0x01); //write reg to hours (00-23)
pradeepvk2208 0:a07e5a4c94bb 31
pradeepvk2208 0:a07e5a4c94bb 32 spi.write(0x83);
pradeepvk2208 0:a07e5a4c94bb 33 spi.write(0x01); //write reg to day (1-7)
pradeepvk2208 0:a07e5a4c94bb 34
pradeepvk2208 0:a07e5a4c94bb 35 spi.write(0x84);
pradeepvk2208 0:a07e5a4c94bb 36 spi.write(0x01); //write reg to date(01-31)
pradeepvk2208 0:a07e5a4c94bb 37
pradeepvk2208 0:a07e5a4c94bb 38 spi.write(0x85);
pradeepvk2208 0:a07e5a4c94bb 39 spi.write(0x01); //write reg to mnth(01-12)
pradeepvk2208 0:a07e5a4c94bb 40
pradeepvk2208 0:a07e5a4c94bb 41 spi.write(0x86);
pradeepvk2208 0:a07e5a4c94bb 42 spi.write(0x01); //write reg to year(00-99)
pradeepvk2208 0:a07e5a4c94bb 43
pradeepvk2208 0:a07e5a4c94bb 44 cs=1;
pradeepvk2208 0:a07e5a4c94bb 45 // Receive the contents of the seconds register
pradeepvk2208 0:a07e5a4c94bb 46
pradeepvk2208 0:a07e5a4c94bb 47 for(int i=0;i<1000000;i++){
pradeepvk2208 0:a07e5a4c94bb 48
pradeepvk2208 0:a07e5a4c94bb 49
pradeepvk2208 0:a07e5a4c94bb 50 cs=0;
pradeepvk2208 0:a07e5a4c94bb 51 spi.write(0x00); // set read register to seconds
pradeepvk2208 0:a07e5a4c94bb 52 int seconds = spi.write(0x00); // read the value by sending dummy byte
pradeepvk2208 0:a07e5a4c94bb 53
pradeepvk2208 0:a07e5a4c94bb 54 cs=1;
pradeepvk2208 0:a07e5a4c94bb 55 cs=0;
pradeepvk2208 0:a07e5a4c94bb 56
pradeepvk2208 0:a07e5a4c94bb 57 spi.write(0x01);
pradeepvk2208 0:a07e5a4c94bb 58 int minutes =spi.write(0x01);
pradeepvk2208 0:a07e5a4c94bb 59
pradeepvk2208 0:a07e5a4c94bb 60 cs=1;
pradeepvk2208 0:a07e5a4c94bb 61 cs=0;
pradeepvk2208 0:a07e5a4c94bb 62
pradeepvk2208 0:a07e5a4c94bb 63 spi.write(0x02);
pradeepvk2208 0:a07e5a4c94bb 64 int hours =spi.write(0x01);
pradeepvk2208 0:a07e5a4c94bb 65
pradeepvk2208 0:a07e5a4c94bb 66 cs=1;
pradeepvk2208 0:a07e5a4c94bb 67 cs=0;
pradeepvk2208 0:a07e5a4c94bb 68
pradeepvk2208 0:a07e5a4c94bb 69 spi.write(0x03);
pradeepvk2208 0:a07e5a4c94bb 70 int day =spi.write(0x01);
pradeepvk2208 0:a07e5a4c94bb 71
pradeepvk2208 0:a07e5a4c94bb 72 cs=1;
pradeepvk2208 0:a07e5a4c94bb 73 cs=0;
pradeepvk2208 0:a07e5a4c94bb 74
pradeepvk2208 0:a07e5a4c94bb 75 spi.write(0x04);
pradeepvk2208 0:a07e5a4c94bb 76 int date =spi.write(0x01);
pradeepvk2208 0:a07e5a4c94bb 77
pradeepvk2208 0:a07e5a4c94bb 78 cs=1;
pradeepvk2208 0:a07e5a4c94bb 79 cs=0;
pradeepvk2208 0:a07e5a4c94bb 80
pradeepvk2208 0:a07e5a4c94bb 81 spi.write(0x05);
pradeepvk2208 0:a07e5a4c94bb 82 int mnth =spi.write(0x01);
pradeepvk2208 0:a07e5a4c94bb 83
pradeepvk2208 0:a07e5a4c94bb 84 cs=1;
pradeepvk2208 0:a07e5a4c94bb 85 cs=0;
pradeepvk2208 0:a07e5a4c94bb 86
pradeepvk2208 0:a07e5a4c94bb 87 spi.write(0x06);
pradeepvk2208 0:a07e5a4c94bb 88 int year =spi.write(0x01);
pradeepvk2208 0:a07e5a4c94bb 89
pradeepvk2208 0:a07e5a4c94bb 90 //This cs=1 is to make the chipselect line high to "deselect" the slave in our case RTC
pradeepvk2208 0:a07e5a4c94bb 91 cs = 1;
pradeepvk2208 0:a07e5a4c94bb 92
pradeepvk2208 0:a07e5a4c94bb 93 //This printf function is to check the timestamp function in the terminal output
pradeepvk2208 0:a07e5a4c94bb 94 printf("timestamp as = %X : %X : %X : %X : %X : %X : %X\n\r", year,mnth,date,day,hours,minutes,seconds);
pradeepvk2208 0:a07e5a4c94bb 95 }
pradeepvk2208 0:a07e5a4c94bb 96
pradeepvk2208 0:a07e5a4c94bb 97
pradeepvk2208 0:a07e5a4c94bb 98
pradeepvk2208 0:a07e5a4c94bb 99 return 0;
pradeepvk2208 0:a07e5a4c94bb 100
pradeepvk2208 0:a07e5a4c94bb 101 }