File content as of revision 0:e91ee0e99213:

#include "mbed.h"
#include "rtos.h"
#include "HK.h"
#include "slave.h"
#include "beacon.h"
#include "ACS.h"
#include "fault.h"
#include "slave.h"
#include "mnm.h"

Serial pc(USBTX, USBRX);

InterruptIn interrupt(D9);                                      //I2c interrupt from CDMS
DigitalOut data_ready(D10);                                     //Sends interrupt to CDMS

Timer t;                                                        //To know the time of execution each thread
Timer t1;                                                       //To know the time of entering  of each thread
Timer t2;                                                       //To check the time sync in i2c communication
Timer t3;                                                       //To know the time taken by i2c read/write function

/*****************************************************************Threads USed***********************************************************************************/
Thread *ptr_t_hk_acq;
Thread *ptr_t_acs;
Thread *ptr_t_bea;
Thread *ptr_t_i2c;
Thread *ptr_t_wdt;  

/****************************************************************configuring I2c*********************************************************************************/
I2CSlave slave(D14,D15);                                        //configuring pins p27, p28 as I2Cslave

int i2c_status=0;                                               //read or write mode for i2c 0: write2slave 1: write2master
typedef struct                                                  //structure of i2c data 
{
    char data[25];                          
    int length;
}i2c_data;


//Mail<i2c_data,16> i2c_data_receive;
Mail<i2c_data,16> i2c_data_send;

//--------------------------------------------------------------------------------------------------------------------------------------------------
//TASK 2 : HK
//--------------------------------------------------------------------------------------------------------------------------------------------------

char hk_data[25];
extern SensorDataQuantised SensorQuantised;
void T_HK_ACQ(void const *args)
{
    
    while(1)
    {
        Thread::signal_wait(0x2);
        SensorQuantised.power_mode='3';                          //default power mode(dummy)
        printf("\n\rTHIS IS HK    %f\n\r",t1.read());
        t.start();
        FUNC_HK_FAULTS();                                        // !Actual fault management is not implemented
        FUNC_HK_POWER(SensorQuantised.power_mode);               // !The power mode algorithm is yet to be obtained
        FUNC_HK_MAIN();                                          //Collecting HK data
        FUNC_I2C_IR2CDMS();                                      //sending HK data to CDMS
        t.stop();
        printf("The time to execute hk_acq is %f seconds\n\r",t.read());
        t.reset();
    }
}

//---------------------------------------------------------------------------------------------------------------------------------------
//TASK 1 : ACS
//---------------------------------------------------------------------------------------------------------------------------------------

int acs_pflag = 1;
void T_ACS(void const *args)
{
    float mag_field[3];
    float omega[3];
    float *mnm_data;
    float mag_field1[3];
    float omega1[3];
    float tauc1[3];
    float moment[3];
    while(1)
    {
        Thread::signal_wait(0x1);
        printf("\n\rEntered ACS   %f\n",t1.read());
        t.start();
        FUNC_ACS_MAG_EXEC(mag_field); 
        printf("\n\r check");
         for(int i=0; i<3; i++) 
            {
            printf("%f\t",mag_field[i]);
            }                         
        FUNC_ACS_EXEC_GYR(omega);
        acs_pflag =1;                       //to be removed later 
        omega[0] = 1.0;
        omega[1] = 1.0;
        omega[2] = 1.0;
        
       
       
       /* mnm_data=EXECUTE_PNI(); //the angular velocity is stored in the first 3 values and magnetic field values in next 3
        printf("\n\rmnm gyro values\n"); //printing the angular velocity and magnetic field values
        for(int i=0; i<3; i++) 
        {
            printf("%f\t",mnm_data[i]);
        }
        printf("\n\r mnm mag values\n");
        for(int i=3; i<6; i++) 
        {
            printf("%f\t",mnm_data[i]);
        }
        for(int i = 0 ; i<3;i++)
        {
            omega1[i] = mnm_data[i];
        }
        for( int i = 3;i<6;i++)
        {
            mag_field1[i-3] = mnm_data[i];
        }
        */
        if(acs_pflag == 1)
        {
           
            FUNC_ACS_CNTRLALGO(mag_field,omega,tauc1);
            printf("\n\r control algo values ");
            for(int i=0; i<3; i++) 
            {
                printf("%f\t",tauc1[i]);
            }
            moment_calc (tauc1, mag_field,moment);
            printf("\n\r moment values ");
            for(int i=0; i<3; i++) 
            {
                printf("%f\t",moment[i]);
            }
            FUNC_ACS_GENPWM(moment);                   
        }
        t.reset();
    }
}

//---------------------------------------------------BEACON--------------------------------------------------------------------------------------------

int beac_flag=0;                                                            //To receive telecommand from ground.


/*void T_BEA_TELECOMMAND(void const *args)
{
    char c = pc.getc();
    if(c=='a')
    {
        printf("Telecommand detected\n\r");
        beac_flag=1;
    }
}
*/

void T_BEA(void const *args)
{
    
    while(1)
    {
        Thread::signal_wait(0x3);
        printf("\n\rTHIS IS BEACON    %f\n\r",t1.read());
        t.start();
        FUNC_BEA();
        if(beac_flag==1)
        {
            Thread::wait(600000);
            beac_flag = 0;
        }
        printf("The time to execute beacon thread is %f seconds\n\r",t.read());
        t.reset();
    }
}



extern SensorDataQuantised SensorQuantised;

/*-------------------------------------------------------------------------------------------------------------------------------------------
-------------------------------------------------------WATCHDOG----------------------------------------------------------------------------*/
DigitalOut trigger(PIN63);                                             // has to be changed
void T_WDT(void const * args)
{
    trigger = 1;
    while(true)
    {
        Thread::signal_wait(0x5);                               //signal set from scheduler or sthing. r RTOS timer nce the timing is finalized
        printf("\n\rEntered WD\n\r");
        trigger = !trigger;
    }
}

//---------------------------------------------------------------------------------------------------------------------------------------------------
//TASK 5 : i2c data
//---------------------------------------------------------------------------------------------------------------------------------------------------

void FUNC_I2C_WRITE2CDMS(char *data, int length=1)
{
    int slave_status = 1;
    if(interrupt ==1)
    {
        if(slave.receive() == 0)
            t2.stop();
        if( slave.receive()==1)
        {
            t2.stop();
            t3.start();
            slave_status=slave.write(data,length);
            t3.stop();
        }
        else if( slave.receive()==3 ||  slave.receive()==2)
        {
            t2.stop();
            t3.start();
            slave_status=slave.read(data,length);
            t3.stop();
        }
    }
    printf("\n\r%d\r",t2.read_us());
    t2.reset();
    printf("\n\r%d\r",t3.read_us());
    t3.reset();
}
   
char data_send[25],data_receive;
void T_I2C_BAE(void const * args)
{
     while(1)
    {
        Thread::signal_wait(0x4);
        if(i2c_status == 0 )
        {
            wait_ms(23);
            FUNC_I2C_WRITE2CDMS(&data_receive,1);
            /*i2c_data * i2c_data_r = i2c_data_receive.alloc();
            i2c_data_r->data = data_receive;
            i2c_data_r->length = 1;
            i2c_data_receive.put(i2c_data_r);*/
            printf("\n\r Data received from CDMS is %c \n\r",data_receive);
            FUNC_I2C_TC_EXECUTE(data_receive);                             // This has to be done from a differen thread
            
        }
        else if(i2c_status ==1)
        {
            osEvent evt = i2c_data_send.get();
            if (evt.status == osEventMail) 
            {
                i2c_data *i2c_data_s = (i2c_data*)evt.value.p;
                strcpy(data_send,i2c_data_s -> data);
                wait_ms(29);
                FUNC_I2C_WRITE2CDMS(data_send,25);
                printf("\n\rData sent to CDMS is %s\n\r",data_send);
                
                i2c_data_send.free(i2c_data_s);
                i2c_status = 0;
            }
        }  
           
    }
}

        

void FUNC_I2C_INT()
{
   
   t2.start();
  // t3.start();
   ptr_t_i2c->signal_set(0x4);
   
     
}

void FUNC_I2C_IR2CDMS()
{
        data_ready=0; 
        //char data[25];
        strcpy(hk_data,"hk_Data");
        strcat(hk_data,SensorQuantised.Voltage);
        strcat(hk_data,SensorQuantised.Current); 
        strcat(hk_data,SensorQuantised.Temperature); 
        strcat(hk_data,SensorQuantised.PanelTemperature);
        strcat(hk_data,SensorQuantised.AngularSpeed);
        strcat(hk_data,SensorQuantised.Bnewvalue);
        char fdata[5] = {SensorQuantised.BatteryTemperature,SensorQuantised.faultpoll,SensorQuantised.faultir,SensorQuantised.power_mode};

        /*strcat(hk_data,sfaultpoll);
        strcat(hk_data,sfaultir);
        strcat(hk_data,spower_mode);*/
        strcat(hk_data,fdata);
        printf("\n\r hk data being sent %s ",hk_data);
        //for(int i=0;i<100000000000;i++)
        //;
            
        /*for(int d=0;d<23;d++)                          //was written just to check hk data
        {
            if(hk_data[d]>10)
            printf("\n\rhk data : %d\n\r",hk_data[d]);
        }   */ 
       
        //data = pcslave.getc();
        
        i2c_status=1;
        i2c_data * i2c_data_s = i2c_data_send.alloc();
        strcpy(i2c_data_s->data,hk_data);
        i2c_data_s->length = 25;
        i2c_data_send.put(i2c_data_s); 
        data_ready=1;
        //temp = i2c_status;
}
    

//------------------------------------------------------------------------------------------------------------------------------------------------
//TELECOMMAND
//------------------------------------------------------------------------------------------------------------------------------------------------
void FUNC_I2C_TC_EXECUTE (char command)  
{ switch(command)
   {   case '0' : printf("command 0 executed");
       break;
       case '1' : printf("command 1 executed");
       break;
       case '2' : printf("command 2 executed");
       break;
       case '3' : printf("command 3 executed");
    }
}  
   

//------------------------------------------------------------------------------------------------------------------------------------------------
//SCHEDULER
//------------------------------------------------------------------------------------------------------------------------------------------------
int beacon_sc = 3;
uint16_t schedcount=1;
void T_SC(void const *args)
{
    //DRDY=0;
    printf("The value of i in scheduler is %d\n\r",schedcount);
    if(schedcount == 65532)                         //to reset the counter
    {
        schedcount = 0;
    }
    
    if(schedcount%1==0)
    {
     ptr_t_acs -> signal_set(0x1);
     //ptr_t_wdt -> signal_set(0x5);
    }
    if(schedcount%2==0)
    {
       // ptr_t_fault -> signal_set(0x2);
       //ptr_t_hk_acq -> signal_set(0x2);
        
    }
    if(schedcount%beacon_sc==0)
    {
        if(beac_flag==0)
        {
            
          //ptr_t_bea -> signal_set(0x3);
        }
    }
    schedcount++;
}
    
//---------------------------------------------------------------------------------------------------------------------------------------------

int main()
{
    t1.start();
    printf("\n\rIITMSAT BAE Activated \n");
    INIT_PNI();                                       // Initializing mnm blue
    FUNC_ACS_MAG_INIT();                              // Initializing magnetometer
    //FUNC_ACS_INIT_GYR();                              // Initializing Gyroscope
    slave.address(0x20);                              // setting slave address for BAE for I2C communication

    ptr_t_hk_acq = new Thread(T_HK_ACQ);
    ptr_t_acs = new Thread(T_ACS);                    
    ptr_t_bea = new Thread(T_BEA);
    ptr_t_i2c = new Thread(T_I2C_BAE);
    //ptr_t_sc = new Thread(T_SC);
    ptr_t_wdt = new Thread(T_WDT);
  
    interrupt_fault();                      // Dummy function called when a fault interrupt is detected
    
    ptr_t_acs->set_priority(osPriorityAboveNormal);
    ptr_t_i2c->set_priority(osPriorityHigh);
    ptr_t_hk_acq->set_priority(osPriorityAboveNormal);
    ptr_t_bea->set_priority(osPriorityAboveNormal);
    //ptr_t_sc->set_priority(osPriorityAboveNormal);
    ptr_t_wdt -> set_priority(osPriorityIdle);
    
  
   // ----------------------------------------------------------------------------------------------
    printf("\n\r T_ACS priority is %d",ptr_t_acs->get_priority());
    printf("\n\r T_HK_ACQ priority is %d",ptr_t_hk_acq->get_priority());
    printf("\n\r T_BEA priority is %d",ptr_t_bea->get_priority());  
    RtosTimer t_sc_timer(T_SC,osTimerPeriodic);
    t_sc_timer.start(10000);
    printf("\n\r%f\n\r",t1.read()); 
     
   // interrupt.rise(&FUNC_I2C_INT);                             //interrupt received from CDMS
    while(1)                                                   //required to prevent main from terminating
    {   
        Thread::wait(5000);
    }
    
}