#include "inc/lm3s811.h"
#include "jtag.h"	
//# include "inc/lm3s811.h"
//#include "inc/hw_types.h"
//#include "inc/hwmemmap.h"
//#include "driverlib/sysctl.h"
//#include "driverlib/gpio.h"


int main(void)
{ 

		/****** Bitte den folgenden Befehl nicht entfernen um sicherzustellen dass Ihr Board funktionstüchtig bleibt ******/
		safe_startup();
		/*******************************************************************************************************************/
SYSCTL_RCGC2_R |=4;  //Schaltet Controllerperiferie; (s.28 Stellaris LM3S811) LED~PORTC C~ 2^0,1,(2)=4
GPIO_PORTC_DIR_R |=32;  //Schaltet Portrichtung; 32 dez weil 2^(5)=32 (PC-5 Schaltbild)
GPIO_PORTC_DEN_R |=32;  // Schaltet als Digital Pin
/*GPIO_PORTC_DATA_R |=32; */
	
	GPIO_PORTC_DIR_R &= ~16; // Port 4 weil 16=2^4
	GPIO_PORTC_DEN_R |= 16;
	


// Idee: wenn Taste User (PC4) gedrückt ist => dann mit PWM-Steuerung: LED PC5 blinkt

    while(1)
		{
			if (GPIO_PORTC_DATA_R & 16) // Wenn Taste PC4 gedrückt ist
			{
				// GPIO_PORTC_DATA_R |= 32;   //Dann LED PC5 an   (Aus der anderen Aufgabe)
			
					// Configure the PWM generator for count down mode with immediate updates
					// to the parameters.

					PWMGenConfigure(PWM_BASE, PWM_GEN_0,
					PWM_GEN_MODE_DOWN | PWM_GEN_MODE_NO_SYNC);

					// Set the period.  For a 50 KHz frequency, the period = 1/50,000, or 20
					// microseconds.  For a 20 MHz clock, this translates to 400 clock ticks.
					// Use this value to set the period.

					PWMGenPeriodSet(PWM_BASE, PWM_GEN_0, 400);
				
					// Configure the PWM generator for count down mode with immediate updates
					// to the parameters.

					PWMGenConfigure(PWM_BASE, PWM_GEN_0,
					PWM_GEN_MODE_DOWN | PWM_GEN_MODE_NO_SYNC);

					// Set the period.  For a 50 KHz frequency, the period = 1/50,000, or 20
					// microseconds.  For a 20 MHz clock, this translates to 400 clock ticks.
					// Use this value to set the period.

					PWMGenPeriodSet(PWM_BASE, PWM_GEN_0, 400);

					// Set the pulse width of PWM0 for a 25% duty cycle.

					PWMPulseWidthSet(PWM_BASE, PWM_OUT_0, 100);

					// Set the pulse width of PWM1 for a 75% duty cycle.

					PWMPulseWidthSet(PWM_BASE, PWM_OUT_1, 300);

					// Start the timers in generator 0.

					PWMGenEnable(PWM_BASE, PWM_GEN_0);

					// Enable the outputs.

					PWMOutputState(PWM_BASE, (PWM_OUT_0_BIT | PWM_OUT_1_BIT), true);
			}
			else
			{
				GPIO_PORTC_DATA_R &= ~32;   //sonst LED PC5 aus
			}
		}
}




/*
//             Programm Muster für PWM

// Configure the PWM generator for count down mode with immediate updates
// to the parameters.
//
PWMGenConfigure(PWM_BASE, PWM_GEN_0,
PWM_GEN_MODE_DOWN | PWM_GEN_MODE_NO_SYNC);
//
// Set the period.  For a 50 KHz frequency, the period = 1/50,000, or 20
// microseconds.  For a 20 MHz clock, this translates to 400 clock ticks.
// Use this value to set the period.
//
PWMGenPeriodSet(PWM_BASE, PWM_GEN_0, 400);
//
// Set the pulse width of PWM0 for a 25% duty cycle.
//
PWMPulseWidthSet(PWM_BASE, PWM_OUT_0, 100);
//
// Set the pulse width of PWM1 for a 75% duty cycle.
//
PWMPulseWidthSet(PWM_BASE, PWM_OUT_1, 300);
//
// Start the timers in generator 0.
//
PWMGenEnable(PWM_BASE, PWM_GEN_0);
//
// Enable the outputs.
//
PWMOutputState(PWM_BASE, (PWM_OUT_0_BIT | PWM_OUT_1_BIT), true);