Diff: rtc_tst.cpp

Revision:

1:620887c20cee

Child:

2:c38929a198a7

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rtc_tst.cpp	Sat Dec 20 10:30:39 2014 +0000
@@ -0,0 +1,121 @@
+#include "rtc_tst.h"
+#include "string.h"
+
+SPI spi(PTD6, PTD7, PTD5); // mosi, miso, sclk
+DigitalOut cs(D9);
+
+
+char* Getts()
+    {
+
+    // 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
+   
+   
+    
+        
+    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 month =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,month,year);
+    
+    
+    printf("b4 returning tmpstmp is : %s\n",getname(year,month,date,day,hours,minutes,seconds));
+    return(getname(year,month,date,day,hours,minutes,seconds));
+    
+    
+    }
+    
+    
+    
+    
+    
+    
+    char* getname(int year1,int month1,int date1,int day1,int hours1,int minutes1,int seconds1)
+{
+    year1= hexint(year1);
+    month1=hexint(month1);
+    date1=hexint(date1);
+    day1=hexint(day1);
+    hours1=hexint(hours1);
+    minutes1=hexint(minutes1);
+    seconds1=hexint(seconds1);
+    /*char y[3]=getstr(year);
+    char m[3]=getstr(month);
+    char dat[3]=getstr(date);
+    char da[3]=getstr(day);
+    char h[3]=getstr(hours);
+    char mi[3]=getstr(minutes);
+    char s[3]=getstr(seconds);*/
+    char time[15];
+    sprintf(time,"%d%d%d%d%d%d%d",year1,month1,date1,day1,hours1,minutes1,seconds1);
+    return(time);
+    
+}
+ 
+int hexint(int a)
+{
+    a=(a/16)*10+(a%16);
+    return a;
+}
\ No newline at end of file