// Lab 8, Working with structs
// Programmer : Maiar Khattab
// Editor(s) used : Code Blocks 13.12
// Compiler(s) used : Code Blocks 13.12
 
#include<iostream>
using std::cout;
using std::endl;
 
#include<cstdlib>
 
//struct def
struct tod
{
int hour;// the hr , 0-23
int minute;// the min, 0-59
int second;//the sec, 0-59
char descr [32];//the description of the time of day
 
};
//void printTod(const tod&);
int main ()
{
  cout << "Lab 8, Working With structs\n";
  cout << "Programmer: Maiar Khattab\n";
  cout << "Editor(s) used: Code Blocks 13.12\n";
  cout << "Compiler(s) used: Code Blocks 13.12\n";
  cout << "File: " << __FILE__ << endl;
  cout << "Complied: " << __DATE__ << " at " << __TIME__ << endl << endl;
 
            tod theTime[] =  {{12,0,0, "noon"},
            {0,0,0," midnight"},
            {6,00,00," supper "},
            {11,30,0,"bedtime"}};
 
          for(int i; i <5; i++)
          {
             char descr [32];                    
            cout << theTime[i].descr << " is " << theTime[i].hour << ':' 
            << theTime[i].minute << ":" << theTime[i].second << endl; 
          }
}
 
 

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 #include "user.h"
#include "../API/controllers.h"         // Discrete-time controllers
 
MPPTracker string1_mppt, string2_mppt;  // Maximum Power Point Trackers
PIDController Ipv_reg;                  // Controller for the PV current
 
tUserSafe UserBackground();
void SlowSubTask();
float SubTaskTimer = 0.0;
bool SubTaskFlag = false;
 
USER_SAFE UserInit(void)
{
  // Configure the main timebases on CLOCK_0:
  Clock_SetPeriod(CLOCK_0, (int)(SWITCHING_FREQUENCY));
 
  // Configure the interrupts:
  ConfigureMainInterrupt(UserInterrupt, CLOCK_0, 0.5);
  RegisterBackgroundCallback(UserBackground);
 
  // Configure the PI controllers:
  ConfigPIDController(&Ipv1_reg, 12.0, 0.3, 0.0, 60, -60, SAMPLING_PERIOD, 10);
 
  // Configure and initialize the MPP-trackers:
  #define increment 0.01
  ConfigMPPTracker(&mymppt, increment, 7.0, 16.0, 1.5, 0.01);
 
  return SAFE;
}

tUserSafe UserInterrupt(void)
{
  // Measure all the necessary quantities:
  Upv = Adc_GetValue(8); // Voltage on the PV string
  Ipv = -Adc_GetValue(0); // PV current
     
  // Execute the current controllers on the MPPT string:
  Epv = Upv - RunPIController(&Ipv_reg, Ipv_ref - Ipv);
  CbPwm_SetDutyCycle(PWM_CHANNEL_3, Epv/Udc);
 
  // Compute the power drawn from the PV panel:
  #define k_iir_lpf 0.05
  Ppv = k_iir_lpf* (Upv*Ipv) + (1.0-k_iir_lpf)* Ppv;
     
  SubTaskTimer += SWITCHING_PERIOD;
  if(SubTaskTimer >= MPPTPERIOD){
    SubTaskTimer = SubTaskTimer - MPPTPERIOD;
    SubTaskFlag  = true;
  }
   
  return SAFE;
}

tUserSafe UserBackground()
{
  if(SubTaskFlag)
  {
    SlowSubTask();
    SubTaskFlag = false;
  }
  return SAFE;
}

void SlowSubTask()
{
  // When appropriate, execute the MPPT algorithm:
  if (enable_MPPT==1){
    // Run the Maximum Power Point Tracking (MPPT) algorithm:
    Ipv_ref = RunMPPTracking(&string_mppt, Ipv, Ppv);
  }
  else{
    // Leave the setpoints unaltered
  }
}