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 /*
 Copyright 2012 D Westaby
-
+
 ----------------------------------------------------------------------
    Car Lights for Attiny2313
 ----------------------------------------------------------------------
 Title:      Car_Lighting.D
 Author:     Dustin Westaby
 Date Created:   September 8, 2012
-Date Modified:   September 23, 2012
+Date Modified:   September 24, 2012
-
+
 Compiled with AVR-GCC WinAVR
-
+
 ----------------------------------------------------------------------
     Fuses:
 ----------------------------------------------------------------------
  BrownOut Disabled
  CKDIV8
  Int RC Osc 8Mhz + 64ms
-
+
 ----------------------------------------------------------------------
     Inputs:
 ----------------------------------------------------------------------
  None
-
+
 ----------------------------------------------------------------------
     Ouputs:
 ----------------------------------------------------------------------
  pin  i/o  port    circuit trace       connection
 ----------------------------------------------------------------------
   4    1   PA1 =   R_LED1
   5    1   PA0 =   L_LED2
   2    1   PD0 =   R_LED3
   3    1   PD1 =   R_LED4
   6    1   PD2 =   R_LED5
   7    1   PD3 =   R_LED6
  14    1   PB2 =   L_LED7
  17    1   PB5 =   L_LED8
  18    1   PB6 =   L_LED9
  19    1   PB7 =   L_LED10
-
+
 */
-
+
 //--------------------------------------
 //          Global Variables           |
 //--------------------------------------
 // 8 MHz Internal Oscillator DIV8 (used for delay subroutines)
 // One CPU Cycle = 1us
 #define F_CPU 8000000UL/8
-
+
 #define R_LED1_PA1  (1)
 #define L_LED2_PA0  (0)
 #define R_LED3_PD0  (0)
 #define R_LED4_PD1  (1)
 #define R_LED5_PD2  (2)
 #define R_LED6_PD3  (3)
 #define L_LED7_PB2  (2)
 #define L_LED8_PB5  (5)
 #define L_LED9_PB6  (6)
 #define L_LED10_PB7 (7)
 
 
 #define CONST_DIM_DELAY_ON  (200)
 #define CONST_DIM_DELAY_OFF (4000)
 
 /* This value is used to count us of delay and convert to ms
    Due to other cpu processing: "1ms of delay" < "1000us of delay" */
 //#define TIME_CONVERSION_VAL (50) //actual number should be 150 (am running faster)
 #define TIME_CONVERSION_VAL (150)
-
+
 int program_ms_counter;
 int program_counter_us; //used for tracking time elapsed
-
+
 //--------------------------------------
 //              Includes               |
 //--------------------------------------
 #include <avr/io.h>
 #include <util/delay.h>
-
+
 //--------------------------------------
 //          Delay Subroutines          |
 //--------------------------------------
 //These functions are from the delay.h include, the calls to delay functions
 //are re-written here to allow for longer waits.
 void delay_ms(uint16_t ms) {
         program_ms_counter+=ms;
         while ( ms )
         {
                 _delay_ms(1);
                 ms--;
         }
 }
 void delay_us(uint16_t us) {
   program_counter_us+=us;
   while ( us )
   {
     _delay_us(1);
     us--;
   }
-
+
   while(program_counter_us>=TIME_CONVERSION_VAL)
   {
           program_ms_counter++;
           program_counter_us-=TIME_CONVERSION_VAL;
   }
 }
-
+
 //--------------------------------------
 //          Misc Subroutines          |
 //--------------------------------------
-
+
 void reset_ms_us_counters(void) {
         program_ms_counter=0;
         program_counter_us=0;
 }
-
+
 void all_LEDs_ON(void) {
         PORTA = 0xFF;
         PORTB = 0xFF;
         PORTD = 0xFF;
 }
-
+
 void all_LEDs_OFF(void) {
         PORTA = ~(0x03);
         PORTB = ~(0xFF);
         PORTD = ~(0xFF);
 }
-
+
 void program_left_turn_mode(void) {
         PORTA &= ~((1<<R_LED1_PA1)+(1<<L_LED2_PA0));
         PORTB &= ~((1<<L_LED10_PB7)+(1<<L_LED8_PB5));
         PORTD &= ~((1<<R_LED6_PD3)+(1<<R_LED5_PD2)+(1<<R_LED4_PD1)+(1<<R_LED3_PD0));
 }
 
 void program_brake_mode(void) {
         PORTA &= ~((1<<R_LED1_PA1)+(1<<L_LED2_PA0));
 }
 
 void program_right_turn_mode (void) {
         PORTA &= ~((1<<R_LED1_PA1)+(1<<L_LED2_PA0));
         PORTB &= ~((1<<L_LED10_PB7)+(1<<L_LED9_PB6)+(1<<L_LED8_PB5)+(1<<L_LED7_PB2));
         PORTD &= ~((1<<R_LED6_PD3)+(1<<R_LED4_PD1));
 }
 
 void program_all_dim_loop (int timer_val) {
-
+
-	while(program_ms_counter < timer_val)
+   while(program_ms_counter < timer_val)
-	{
+   {
-		all_LEDs_ON();
+      all_LEDs_ON();
-		delay_us(CONST_DIM_DELAY_ON);
+      delay_us(CONST_DIM_DELAY_ON);
-		all_LEDs_OFF();
+      all_LEDs_OFF();
-		delay_us(CONST_DIM_DELAY_OFF);
+      delay_us(CONST_DIM_DELAY_OFF);
-	}
+   }
-
+
 }
 
 void program_break_loop (int timer_val) {
-
+
-	while(program_ms_counter < timer_val)
+   while(program_ms_counter < timer_val)
-	{
+   {
-		all_LEDs_ON();
+      all_LEDs_ON();
-		delay_us(CONST_DIM_DELAY_ON);
+      delay_us(CONST_DIM_DELAY_ON);
-		program_brake_mode();
+      program_brake_mode();
-		delay_us(CONST_DIM_DELAY_OFF);
+      delay_us(CONST_DIM_DELAY_OFF);
-	}
+   }
-
+
 }
 
 void program_left_turn_loop (int timer_val) {
-
+
-	while(program_ms_counter < timer_val)
+   while(program_ms_counter < timer_val)
-	{
+   {
-		all_LEDs_ON();
+      all_LEDs_ON();
-		delay_us(CONST_DIM_DELAY_ON);
+      delay_us(CONST_DIM_DELAY_ON);
-		program_left_turn_mode();
+      program_left_turn_mode();
-		delay_us(CONST_DIM_DELAY_OFF);
+      delay_us(CONST_DIM_DELAY_OFF);
-	}
+   }
-
+
 }
 
 void program_right_turn_loop (int timer_val) {
-
+
-	while(program_ms_counter < timer_val)
+   while(program_ms_counter < timer_val)
-	{
+   {
-		all_LEDs_ON();
+      all_LEDs_ON();
-		delay_us(CONST_DIM_DELAY_ON);
+      delay_us(CONST_DIM_DELAY_ON);
-		program_right_turn_mode();
+      program_right_turn_mode();
-		delay_us(CONST_DIM_DELAY_OFF);
+      delay_us(CONST_DIM_DELAY_OFF);
-	}
+   }
-
+
 }
 
 
 //--------------------------------------
 //               Main                  |
 //--------------------------------------
 int main (void)
 {
-
+
   /* ---------------------------------------------------------------- */
   /*                            Initialization                        */
   /* ---------------------------------------------------------------- */
-
+
   //Initialize all ports as outputs
   DDRA =  0b00000011; //A0, A1
   DDRB =  0b11111111;
   DDRD =  0b11111111;
-
+
   all_LEDs_OFF();
-
+
 /* ---------------------------------------------------------------- */
 /*                              Main Loop                           */
 /* ---------------------------------------------------------------- */
-
+
   while(1)
   {
-
+
-		//1 - All dim nothing happens (resting natural state)
+//1)    Dim
-		reset_ms_us_counters();
+      //1 - All dim nothing happens (resting natural state)
-		program_all_dim_loop(6000);
+      reset_ms_us_counters();
-
+      program_all_dim_loop(6000);
-		//2 - left turn, all dim, 2 will blink at ½ sec for 5 sec.
+
-		reset_ms_us_counters();
+//2)    Left Turn
-		while(program_ms_counter < 5000)
+      //2 - left turn, all dim, 2 will blink at ½ sec for 10 sec.
-		{
+      reset_ms_us_counters();
-			program_left_turn_loop(program_ms_counter+500);
+      while(program_ms_counter < 10000)
-			program_all_dim_loop  (program_ms_counter+500);
+      {
-		}
+         program_left_turn_loop(program_ms_counter+500);
-		//then dim for 1 sec
+         program_all_dim_loop  (program_ms_counter+500);
-		program_all_dim_loop(6000);
+      }
       //then dim for 1 sec
-		//3 – brakes get bright (8 LED’s) for 2 sec then dim for 1 for 6 seconds
+      program_all_dim_loop(11000);
-		reset_ms_us_counters();
+
-		while(program_ms_counter < 6000)
+//3)    Dim (4 sec)
-		{
+      //4 - All dim nothing happens (resting natural state)
-			program_break_loop  (program_ms_counter+2000);
+      reset_ms_us_counters();
-			program_all_dim_loop(program_ms_counter+1000);
+      program_all_dim_loop(4000);
-		}
+
 //4)    Brakes
-		//4 - All dim nothing happens (resting natural state)
+      //3 – brakes get bright (8 LED’s) for 4 sec then dim for 1sec for 12 seconds
-		reset_ms_us_counters();
+      reset_ms_us_counters();
-		program_all_dim_loop(6000);
+      while(program_ms_counter < 12000)
       {
-		//5 – right turn, all dim, 2 will blink at ½ sec for 5 sec.
+         program_break_loop  (program_ms_counter+4000);
-		reset_ms_us_counters();
+         program_all_dim_loop(program_ms_counter+1000);
-		while(program_ms_counter < 5000)
+      }
-		{
+
-			program_right_turn_loop(program_ms_counter+500);
+//5)    Dim (4 Sec)
-			program_all_dim_loop   (program_ms_counter+500);
+      //4 - All dim nothing happens (resting natural state)
-		}
+      reset_ms_us_counters();
-		//then dim for 1 sec.
+      program_all_dim_loop(4000);
-		program_all_dim_loop(6000);
+
 //6)    Right Turn
-		//6 – brakes get bright (8 LED’s) for 2 sec then dim for 1 for 6 seconds
+      //5 – right turn, all dim, 2 will blink at ½ sec for 10 sec.
-		reset_ms_us_counters();
+      reset_ms_us_counters();
-		while(program_ms_counter < 6000)
+      while(program_ms_counter < 10000)
-		{
+      {
-			program_break_loop  (program_ms_counter+2000);
+         program_right_turn_loop(program_ms_counter+500);
-			program_all_dim_loop(program_ms_counter+1000);
+         program_all_dim_loop   (program_ms_counter+500);
-		}
+      }
       //then dim for 1 sec.
       program_all_dim_loop(11000);
-
+
 //7)    Dim (4 sec)
-
+      //4 - All dim nothing happens (resting natural state)
       reset_ms_us_counters();
       program_all_dim_loop(4000);
 
 //8)    Brakes
       //6 – brakes get bright (8 LED’s) for 4 sec then dim for 1sec for 12 seconds
       reset_ms_us_counters();
       while(program_ms_counter < 12000)
       {
          program_break_loop  (program_ms_counter+4000);
          program_all_dim_loop(program_ms_counter+1000);
       }
 
 //9)    Loop
 
 }
 
   while(1);                 // Ending infinite loop (just in case)
 
 }