Pradeep Kotipalli
/
testing_rtc
hi rtc
Fork of testing_rtc by
main.cpp
- Committer:
- pradeepvk2208
- Date:
- 2014-12-21
- Revision:
- 2:c38929a198a7
- Parent:
- 1:620887c20cee
File content as of revision 2:c38929a198a7:
#include "mbed.h" #include "rtc_tst.h" //SPI spi(PTD6, PTD7, PTD5); // mosi, miso, sclk //DigitalOut cs(D9); int main() { while(1) { Getts(); wait(5); } /* // Setup the spi for 8 bit data, high steady state clock, // second edge capture, with a 1MHz clock rate spi.format(8,3); spi.frequency(1000000); cs = 0; spi.write(0x80); // set write register to seconds spi.write(0x00); // send value of zero //cs=1; //cs=0; spi.write(0x81); spi.write(0x00); //write reg to minutes //cs=1; //cs=0; spi.write(0x82); spi.write(0x15); //write reg to hours (00-23) spi.write(0x83); spi.write(0x07); //write reg to day (1-7) spi.write(0x84); spi.write(0x20); //write reg to date(01-31) spi.write(0x85); spi.write(0x12); //write reg to mnth(01-12) spi.write(0x86); spi.write(0x12); //write reg to year(00-99) cs=1; // Receive the contents of the seconds register for(int i=0;i<1000000;i++){ cs=0; spi.write(0x00); // set read register to seconds int seconds = spi.write(0x00); // read the value by sending dummy byte //cs=1; //cs=0; spi.write(0x01); int minutes =spi.write(0x01); //cs=1; //cs=0; spi.write(0x02); int hours =spi.write(0x01); spi.write(0x03); int day =spi.write(0x01); spi.write(0x04); int date =spi.write(0x01); spi.write(0x05); int mnth =spi.write(0x01); spi.write(0x06); int year =spi.write(0x01); //This cs=1 is to make the chipselect line high to "deselect" the slave in our case RTC cs = 1; //This printf function is to check the timestamp function in the terminal output printf("timestamp as = %X : %X : %X : %X : %X : %X : %X\n\r", hours,minutes,seconds,day,date,mnth,year); } return 0; */ return 0; }