Diff: cdms_rtc.h

Revision:

209:63e9c8f8b5d2

Parent:

197:1369ef45b49e

Child:

215:6848a51af734

Child:

224:3ac1f91e0ebc

--- a/cdms_rtc.h	Sat Jul 02 14:25:11 2016 +0000
+++ b/cdms_rtc.h	Sat Jul 02 14:54:52 2016 +0000
@@ -4,137 +4,118 @@
     gCS_RTC=1;
     spi.format(8,0);
     spi.frequency(1000000);
-    //clearing the halt bit 
+    //clearing the halt bit
     gCS_RTC=1;
     gCS_RTC=0;
     spi.write(0x8C);
     spi.write(0x00);
-     
-    //clearing the OF bit 
+
+    //clearing the OF bit
     gCS_RTC=1;
     gCS_RTC=0;
     spi.write(0x8F);
     spi.write(0x00);
-     
+
     //century bits
     gCS_RTC=1;
     gCS_RTC=0;
     spi.write(0x80|0x03);
     spi.write(0x00);
- 
-    //Kick starting the oscillator 
+
+    //Kick starting the oscillator
     gCS_RTC=1;
     gCS_RTC=0;
     spi.write(0x81); //register address with write flag
-    spi.write(0x80);//enabling stop bit in the seconds register
- 
+    spi.write(0x80); //enabling stop bit in the seconds register
+
     gCS_RTC=1;
     gCS_RTC=0;
     spi.write(0x81);
-    spi.write(0x00);//disabling the stop bit to restart the oscillator 
- 
+    spi.write(0x00); //disabling the stop bit to restart the oscillator
+
+
+    gCS_RTC=1;
+    gCS_RTC=0;
+    spi.write(0x80);
+    spi.write(0x01); // set milliseconds value to 00
+    gCS_RTC=1;
+
+    gCS_RTC=0;
+    spi.write(0x81);
+    spi.write(0x01); //set seconds value to 00
+    gCS_RTC=1;
+
+    gCS_RTC=0;
+    spi.write(0x82);
+    spi.write(0x01);//set minutes value to 00
+    gCS_RTC=1;
+
+    gCS_RTC=0;
+    spi.write(0x83);
+    spi.write(0x23); //set the hours to 01
+    gCS_RTC=1;
+
+    gCS_RTC=0;
+    spi.write(0x84);
+    spi.write(0x01); //set day of the week to 01
+    gCS_RTC=1;
+
+    gCS_RTC=0;
+    spi.write(0x85);
+    spi.write(0x31); //set date of the month to 01
+    gCS_RTC=1;
+
+    gCS_RTC=0;
+    spi.write(0x86);
+    spi.write(0x12); //set month to 01
+    gCS_RTC=1;
+
+    gCS_RTC=0;
+    spi.write(0x87);
+    spi.write(0x01); //set year to 00(2000)
+    gCS_RTC=1;
+    gPC.puts("\r\nrtc initalised\r\n");
+    SPI_mutex.unlock();
+}
+
+uint64_t FCTN_CDMS_RD_RTC()
+{
+    SPI_mutex.lock();
+    uint8_t response;
+
+    gCS_RTC=1;
+    gCS_RTC=0;
+    spi.write(0x0F);
+    response = (spi.write(0x00))&0x04;
     
     gCS_RTC=1;
     gCS_RTC=0;
-    spi.write(0x80); 
-    spi.write(0x01); // set milliseconds value to 00
-    gCS_RTC=1;
- 
-    gCS_RTC=0;
-    spi.write(0x81); 
-    spi.write(0x01); //set seconds value to 00
-    gCS_RTC=1;
- 
-    gCS_RTC=0;
-    spi.write(0x82); 
-    spi.write(0x01);//set minutes value to 00
-    gCS_RTC=1;
- 
-    gCS_RTC=0;
-    spi.write(0x83); 
-    spi.write(0x23); //set the hours to 01
-    gCS_RTC=1;
-    
-    gCS_RTC=0;
-    spi.write(0x84); 
-    spi.write(0x01); //set day of the week to 01
-    gCS_RTC=1;
-    
-    gCS_RTC=0;
-    spi.write(0x85); 
-    spi.write(0x31); //set date of the month to 01
-    gCS_RTC=1;
-    
-    gCS_RTC=0;
-    spi.write(0x86); 
-    spi.write(0x12); //set month to 01
-    gCS_RTC=1;
-    
-    gCS_RTC=0;
-    spi.write(0x87); 
-    spi.write(0x01); //set year to 00(2000)
-    gCS_RTC=1;
-    gPC.puts("\n\r rtc initalised \n");
-    SPI_mutex.unlock();
-}
- 
-uint64_t FCTN_CDMS_RD_RTC()
-{    
-    SPI_mutex.lock();
-    uint8_t response;
-    //gPC.printf("\n\r Entered rtc\n");
+    spi.write(0x00);                //reading centiseconds register
+    response = spi.write(0x00);     // read the value by sending dummy byte
+    uint8_t centiseconds = ((response&0xF0)>>4)*10+(response&0x0F)*1;
+
+    response =spi.write(0x00);
+    uint8_t seconds = ((response&0x70)>>4)*10+(response&0x0F)*1;
+
+    response =spi.write(0x00);
+    uint8_t minutes = ((response&0x70)>>4)*10+(response&0x0F)*1;
+
+    response=spi.write(0x00);
+    uint8_t hours = ((response&0x30)>>4)*10+(response&0x0F)*1;
+
+    uint8_t day =spi.write(0x00);
+
+    response =spi.write(0x00);
+    uint8_t date = ((response&0x30)>>4)*10+(response&0x0F)*1;
+
+    response =spi.write(0x00);
+    uint8_t month = ((response&0x10)>>4)*10+(response&0x0F)*1;
+
+    response =spi.write(0x00);
+    uint8_t year = ((response&0xF0)>>4)*10+(response&0x0F)*1;
+    year = (year == 17)?0x00:(year == 18)?0x01:(year == 19)?0x02:(year == 20)?0x03:0x00;
     gCS_RTC=1;
-    gCS_RTC=0;
-    spi.write(0x00); //reading milliseconds register
-    response = spi.write(0x00); // read the value by sending dummy byte
-    uint8_t centiseconds =  (uint8_t(response&0xF0)>>4)*10+uint8_t(response&0x0F)*1;
-    
-    gCS_RTC=1;
-    gCS_RTC=0;
-    spi.write(0x01); //reading seconds register
-    response =spi.write(0x01);
-    uint8_t seconds =  ((response&0x70)>>4)*10+(response&0x0F)*1;
-    
-    gCS_RTC=1;
-    gCS_RTC=0;
-    spi.write(0x02); //reading minutes register
-    response =spi.write(0x01);
-    uint8_t minutes =  ((response&0xF0)>>4)*10+(response&0x0F)*1;
-    
-    gCS_RTC=1;
-    gCS_RTC=0;
-    spi.write(0x03); //reading hours register
-    response=spi.write(0x01);
-    uint8_t hours =  ((response&0x30)>>4)*10+(response&0x0F)*1;
-    
-    gCS_RTC=1;
-    gCS_RTC=0;
-    spi.write(0x04); //reading day's  register
-    uint8_t day =spi.write(0x01);
-    
-    gCS_RTC=1;
-    gCS_RTC=0;
-    spi.write(0x05); //reading date register
-    response =spi.write(0x01);
-    uint8_t date =  ((response&0x30)>>4)*10+(response&0x0F)*1;
-    
-    gCS_RTC=1;
-    gCS_RTC=0;
-    spi.write(0x06); //reading month registe
-    response =spi.write(0x01);
-    uint8_t month =  ((response&0x10)>>4)*10+(response&0x0F)*1;
-    
-    gCS_RTC=1;
-    gCS_RTC=0;
-    spi.write(0x07); //reading year's registe
-    response =spi.write(0x01);
-    uint8_t year =  ((response&0xF0)>>4)*10+(response&0x0F)*1;
-    gCS_RTC=1;
-    //sprintf(Time_stamp,"%02d%02d%02d%02d%02d%02d%02d%02d",year, month, date, day, hours, minutes, seconds, milliseconds );
-    uint8_t Time_stamp[8] = {year, month, date, day, hours, minutes, seconds, centiseconds};
-    for(int i= 0; i<8;i++);
-        //printf("%d\t",Time_stamp[i]);
-    //printf("read\r\n");
+
     uint64_t time;
     time = 0;
     time = time|(((uint64_t)(centiseconds&0x7F)));
@@ -145,8 +126,8 @@
     time = time|(((uint64_t)(month&0x07))<<29);
     time = time|(((uint64_t)(year&0x03))<<33);
     time = (time&0x00000007FFFFFFFF);
-    //gPC.printf("\n\r%x%x", (int)(time >> 32), (int)(time));
-    //gPC.printf("\n\r0x%016llx\n\r", time);
-   return time;
-   SPI_mutex.unlock();
-}
\ No newline at end of file
+
+    SPI_mutex.unlock();
+    return time;
+}
+