main.cpp

00001 /*                                        Cyclic Executive
00002 This software is built to test (Cyclic Executive). 6 main tasks are used in and every one of them
00003 has its own time of repetition. To execute this, a Ticker was used to call a function every 4 mSec.
00004 In this software a benefit is a token from two counter, one is counting a pulses and it reset every 25 cycles.
00005 That mean it reset every 100 mSec. Then other counter (AllTimeCounter that count a 100 mSec) increased by one.
00006 A slot is defined for each function, for example the slot number 1 is to reading the two digital input. however
00007 this slote is for this function it is not excuted every slot 1. It is excuted just when the timer calculat 400 mSec. 
00008 That is 100 cycles. Also, after 200 cycles (800 mSec) the condition is true for two factions, but the processor will 
00009 implement one in slot 1 and next cycle implement the other. Excuting the LCD and writing file got more slote space.
00010 The LCD show slot is 72 mSec and the writing is 8 mSec. At A Sec 180 all functions are called and the 1800 (100 mSec)
00011 will be like this:
00012    __    __    __    __    __    __    __    __    __                        __  
00013   |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |                      |  |  
00014   |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |----------------------|  | 
00015 __|  |__|  |__|  |__|  |__|  |__|  |__|  |__|  |__|  |__                  __|  |__ 
00016    <S1 > < S2> <     S3  > < S4> < S5> <    S6   > <              S7             >
00017     
00018      4     4       8        4     4        8                   64    mSec 
00019     ___   ___   ________   ___   ___   ________    __                       __  
00020    |   | |   | |        | |   | |   | |        |  |                        |  |  
00021    |   | |   | |        | |   | |   | |        |  |  ----------------------|  | 
00022  __|   |_|   |_|        |_|   |_|   |_|        |__|                      __|  |__     
00023    
00024         The full program ducimentation is on
00025         http://mbed.org/users/muaiyd/code/ass2/
00026 */
00027 #include "Function.h"
00028 #include "Display.h"
00029 #include "FreqMesure.h"
00030 #include "ReadInput.h"
00031 
00032 uint16_t Counter = 0;
00033 uint16_t AllTimeCounter = 1; //It start from 1 to avoid excute all function at begining
00034 
00035 void CycleFunction(); 
00036  
00037 int main(){
00038     Init_LCD();
00039     InitFile();
00040     LogTimer.start();
00041     Cycle.attach_us(&CycleFunction,4000);      
00042 }
00043 
00044 void CycleFunction(){
00045 
00046 /*
00047     We can see the period of execute time for  every function below on the pin that
00048     assigned for each and writen infront of it.    The least common multiple for all the above
00049      repeat time function is 180 Sec so every 180 Sec all the cycle is repeated. That mean 45000
00050      cycles.
00051 */
00052    
00053     Counter ++ ;
00054     switch(Counter){
00055         case 1:
00056             if( AllTimeCounter % 4 == 0) ReadDigitalin();  //Pin 21      
00057         break;
00058         case 2:
00059             if( AllTimeCounter % 8 ==0) ReadAnalogin();   //Pin 22
00060         break;
00061         case 3:
00062             if( AllTimeCounter % 10 == 0) FreqMsur();     //Pin 23
00063         break;
00064         case 5:
00065             if( AllTimeCounter % 15 == 0) BinaryCounter();//Pin 24
00066         break;
00067         case 6:
00068             if( AllTimeCounter % 18 == 0) InputCheck();   //Pin 25
00069         break;
00070         case 7:
00071             if( AllTimeCounter % 50 == 0 ) LogFile();      //Pin 27
00072         break;
00073         case 9:
00074             if( AllTimeCounter % 20 == 0 ) Display();      //Pin 26
00075         break;
00076         case 25:
00077             Counter = 0;
00078             AllTimeCounter ++ ;
00079             TickerPin = !(TickerPin);
00080         break;
00081     }
00082     if ( AllTimeCounter == 1800 ) AllTimeCounter = 0; 
00083 }