main.cpp

00001 #include "mbed.h"
00002 DigitalOut condition(LED1);
00003 Serial gs(USBTX,USBRX,9600);
00004 Timer sattime;
00005 int rcmd = 0, cmdflag = 0; //command variable
00006 
00007 //getting command and command flag
00008 void commandget()
00009 {
00010     rcmd = gs.getc();
00011     cmdflag = 1;
00012 }
00013 //interrupting process by command receive
00014 void receive(int rcmd, int cmdflag)
00015 {
00016     gs.attach(commandget,Serial::RxIrq);
00017 }
00018 //initializing
00019 void initialize()
00020 {
00021     rcmd = 0;
00022     cmdflag = 0;
00023     condition = 0;
00024 }
00025 
00026 int main()
00027 {
00028     gs.printf("From Sat : Nominal Operation\r\n");
00029     int flag = 0; //condition flag
00030     float batvol, temp; //voltage, temperature 
00031     sattime.start();
00032     receive(rcmd,cmdflag); //interrupting
00033     for(int i=0;i<50;i++){
00034         //satellite condition led
00035         condition = !condition;
00036         
00037         //senssing HK data(dummy data)
00038         batvol = 3.7;
00039         temp   = 28.5;
00040         
00041         //Transmitting HK data to Ground Station(GS)
00042         gs.printf("HEPTASAT::Condition = %d, Time = %f [s], batvol = %2f [V], temp = %2f [deg C]\r\n",flag,sattime.read(),batvol,temp);
00043         wait_ms(1000);
00044         
00045         if(cmdflag == 1){
00046             if(rcmd == 'a'){
00047                 for(int j=0;j<5;j++){
00048                     gs.printf("Hello World!\r\n");
00049                     condition = 1;
00050                     wait_ms(1000);
00051                 }
00052             }
00053             initialize(); //initializing
00054         }
00055     }
00056     sattime.stop();
00057     gs.printf("From Sat : End of operation\r\n");
00058 }