EmbeddedSystems/EmbeddedSystemsTHM/StopLight.c

/*
 * StopLight.c
 *
 * Created: 11/11/2021 16:26:22
 *  Author: n0x
 */ 

#include "Led.h";
#include "Taster.h";
#include <util/delay.h>;

/* enums */
enum{
	S1_GREEN, S1_YELLOW, S1_RED, S1_RED_YELLOW,
	S2_GREEN, S2_YELLOW, S2_RED, S2_RED_YELLOW,
	INIT,
	} StoplightState = INIT; /* Emus for the stoplight task (task 3) */


/* Programmieren eine Ampelsteuerung auf einer Stra<72>enkreuzung */
	
/* handle the delays locally for easy changing */
//int delayShort = 5000;
//int delayLong  = 30000;
	
/* Stoplight and the corresponding Leds
	    |  GREEN  |  YELLOW  | RED
----------------------------------
SL 1  |  Led1   |  Led4    | Led6
SL 2  |  Led2   |  Led5    | Led7
	
General rundown: 
	- State is entered
	- Wait till delay is passed
	- Switch off running LEDs
	- Switch on new LEDs
	- Set next state
*/

uint16_t g_startMS;
int delayShort = 5000;
int delayLong  = 30000;

void stopLightInit(){
	g_startMS=Timer_getTick();
}

/* Task 3 (2021-11-11) */
void 
runStopLightTask1()
{
	switch(StoplightState){
		case INIT:
			Led1_On(); // Set stoplight 1 to green
			Led2_Off();
			Led3_Off();
			Led4_Off();
			Led5_Off();
			Led6_Off();
			Led7_On(); // Set stoplight 2 to red
			Led8_Off(); 
			
			if(Timer_getTick() - g_startMS >= delayLong) {
				g_startMS=Timer_getTick();
				StoplightState = S1_YELLOW;
			}
			break;
		
		case S1_YELLOW:
			Led1_Off();
			Led4_On();
			
			if(Timer_getTick() - g_startMS >= delayShort) {
				g_startMS=Timer_getTick();
				StoplightState = S1_RED;
			}
			break;
		
		case S1_RED:
			Led4_Off();
			Led6_On(); 
			
			if(Timer_getTick() - g_startMS >= delayShort) {
				g_startMS=Timer_getTick();
				StoplightState = S2_RED_YELLOW;
			}
			break;
		
		case S2_RED_YELLOW:
			Led5_On();
			Led7_On();

			if(Timer_getTick() - g_startMS >= delayShort) {
				g_startMS=Timer_getTick();
				StoplightState = S2_GREEN;
			}
			break;
			
		case S2_GREEN:
			Led5_Off();
			Led7_Off();
			Led2_On();
			
			if(Timer_getTick() - g_startMS >= delayLong) {
				g_startMS=Timer_getTick();
				StoplightState = S2_YELLOW;
			}
			break;
			
		case S2_YELLOW:
			Led2_Off();
			Led5_On();
			if(Timer_getTick() - g_startMS >= delayShort) {
				g_startMS=Timer_getTick();
				StoplightState = S2_RED;
			}
			break;
		
		case S2_RED:
			Led5_Off();
			Led7_On();
			if(Timer_getTick() - g_startMS >= delayShort) {
				g_startMS=Timer_getTick();
				StoplightState = S1_RED_YELLOW;
			}
			break;
		
		case S1_RED_YELLOW:
			Led4_On();
			Led6_On();
			if(Timer_getTick() - g_startMS >= delayShort) {
				g_startMS=Timer_getTick();
				StoplightState = S1_GREEN;
			}
			break;
			
		case S1_GREEN:
			Led4_Off();
			Led6_Off();
			Led1_On();
			if(Timer_getTick() - g_startMS >= delayLong) {
				g_startMS=Timer_getTick();
				StoplightState = S1_YELLOW;
			}
			break;
	}
}

void
runStopLightTask2(void)
{
	switch(StoplightState){
		case INIT:
		Led1_On(); // Set stoplight 1 to green
		Led2_Off();
		Led3_Off();
		Led4_Off();
		Led5_Off();
		Led6_Off();
		Led7_On(); // Set stoplight 2 to red
		Led8_Off();
		
		if(Taster1_get()) {
			StoplightState = S1_YELLOW;
		}
		break;
		
		case S1_YELLOW:
		Led1_Off();
		Led4_On();
		
		if(Timer_getTick() - g_startMS >= delayShort) {
			g_startMS=Timer_getTick();
			StoplightState = S1_RED;
		}
		break;
		
		case S1_RED:
		Led4_Off();
		Led6_On();
		
		if(Timer_getTick() - g_startMS >= delayShort) {
			g_startMS=Timer_getTick();
			StoplightState = S2_GREEN;
		}
		break;
			
		case S2_GREEN:
		Led5_Off();
		Led7_Off();
		Led2_On();
		
		if(Timer_getTick() - g_startMS >= delayLong) {
			g_startMS=Timer_getTick();
			StoplightState = S2_YELLOW;
		}
		break;
		
		case S2_YELLOW:
		Led2_Off();
		Led5_On();
		if(Timer_getTick() - g_startMS >= delayShort) {
			g_startMS=Timer_getTick();
			StoplightState = S2_RED;
		}
		break;
		
		case S2_RED:
		Led5_Off();
		Led7_On();
		if(Timer_getTick() - g_startMS >= delayShort) {
			g_startMS=Timer_getTick();
			StoplightState = S1_RED_YELLOW;
		}
		break;
		
		case S1_RED_YELLOW:
		Led4_On();
		Led6_On();
		if(Timer_getTick() - g_startMS >= delayShort) {
			g_startMS=Timer_getTick();
			StoplightState = S1_GREEN;
		}
		break;
		
		case S1_GREEN:
		Led4_Off();
		Led6_Off();
		Led1_On();
		
		if( (Timer_getTick() - g_startMS >= delayLong) && Taster1_get()) {
			g_startMS=Timer_getTick();
			StoplightState = S1_YELLOW;
		}
		break;
	}
}
//*/