hk.cpp

00001 #include "hk.h"
00002 SPI spi(PTD6, PTD7, PTD5);
00003 DigitalOut cs(D6);
00004 
00005 SDFileSystem sd(PTD6, PTD7, PTD5, D7,"sd");
00006 
00007 //Timer t1;
00008 //DigitalOut interrupt(D9);
00009 //const int addr = 0x20; 
00010 bool ack0;
00011 //I2C master (D14,D15); 
00012 
00013  void spiwrite(int a)
00014     {
00015         cs=1;
00016         cs=0;
00017         spi.write(a);
00018         spi.write(0x01);
00019     }
00020     
00021     int spiread(int a)
00022     {
00023         cs=1;
00024         cs=0;
00025         spi.write(a);
00026         return(spi.write(0x00));
00027     }
00028     char* getname(int year1,int month1,int date1,int day1,int hours1,int minutes1,int seconds1)
00029 {
00030     year1= hexint(year1);
00031     month1=hexint(month1);
00032     date1=hexint(date1);
00033     day1=hexint(day1);
00034     hours1=hexint(hours1);
00035     minutes1=hexint(minutes1);
00036     seconds1=hexint(seconds1);
00037     char time[15];
00038     sprintf(time,"%02d%02d%02d%02d%02d%02d%02d",year1,month1,date1,day1,hours1,minutes1,seconds1);
00039     
00040     return(time);
00041     
00042 }
00043 
00044 int hexint(int a)
00045 {
00046     a=(a/16)*10+(a%16);
00047     return a;
00048 }
00049 //storedata stores the dummy structure in the file with timestamp as the filename in HK directory
00050 void init_rtc(void)
00051 {
00052     spi.format(8,3);
00053     spi.frequency(1000000);
00054     spiwrite(0x80);           //write seconds to 01
00055     spiwrite(0x81);           //write minutes t0 01
00056     spiwrite(0x82);           //write hours  to 01
00057     spiwrite(0x83);           //write day of week to 01
00058     spiwrite(0x84);           //write day of month to 01
00059     spiwrite(0x85);           //write month to 01
00060     spiwrite(0x86);           //write year to 01
00061     printf("RTC initialized");
00062 }
00063 void storedata(char * data)
00064 {
00065      
00066     printf("ready to store");        
00067     spi.format(8,3);
00068     spi.frequency(1000000);
00069 
00070     int seconds=spiread(0x00);     //read seconds
00071     int minutes =spiread(0x01);    //read minutes
00072     int hours =spiread(0x02);      //read hours
00073     int day =spiread(0x03);      //read day of the week
00074     int date =spiread(0x04);       //read day of the month
00075     int month =spiread(0x05);      //read month
00076     int year =spiread(0x06);       //read year
00077     cs = 1;
00078     
00079     //Assigning dummy values to the structure
00080     
00081    /* SensorData Sensor;
00082     
00083     printf("Writing dummy values\n");
00084     strcpy( Sensor.Voltage, "49");
00085     strcpy( Sensor.Current, "83");
00086     Sensor.Temperature ='5';
00087     strcpy( Sensor.PanelTemperature, "4");
00088     Sensor.Vcell_soc='9';
00089     Sensor.alerts= '4';
00090     Sensor.crate='7';
00091     Sensor.BatteryTemperature='6';      
00092     Sensor.faultpoll='4';            
00093     Sensor.faultir='g';              
00094     Sensor.power_mode='k';           
00095     strcpy( Sensor.AngularSpeed, "9");
00096     strcpy(Sensor.Bnewvalue,"6");
00097     printf("Done writing dummy values\n"); */
00098     mkdir("/sd/hk", 0777);
00099     char date2[100]="/sd/hk/";
00100     strcat(date2,getname(year,month,date,day,hours,minutes,seconds));
00101     strcat(date2,".txt");
00102     FILE *fp ;
00103     fp= fopen(date2, "w");
00104     if(fp == NULL)
00105     {
00106         error("Could not open file for write\n");
00107     }
00108     else
00109     {
00110     fprintf(fp, "%s ", data);
00111     fclose(fp);
00112     printf("File created and data entered successfully");
00113     }
00114 }