MT8888.c

/*****************************************************

Chip type           : ATmega8515

Program type        : Application

Clock frequency     : 3,579000 MHz

Memory model        : Small

External SRAM size  : 0

Data Stack size     : 128

*****************************************************/

#include <mega8515.h> 

#include <delay.h>

// Alphanumeric LCD Module functions

#asm

   .equ __lcd_port=0x1B ;PORTA

#endasm

#include <lcd.h>

// External Interrupt 0 service routine

interrupt [EXT_INT0] void ext_int0_isr(void)

{

// Place your code here

}

// Declare your global variables here

   unsigned char i; 

    reset();

void main(void)

{

// Declare your local variables here

// Input/Output Ports initialization

// Port A initialization

// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In 

// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T 

PORTA=0x00;

DDRA=0x00;

// Port B initialization

// Func7=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out 

// State7=0 State6=0 State5=0 State4=0 State3=0 State2=0 State1=0 State0=0 

PORTB=0x00;

DDRB=0xFF;

// Port C initialization

// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In 

// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T 

PORTC=0x00;

DDRC=0x00;

// Port D initialization

// Func7=In Func6=Out Func5=Out Func4=Out Func3=Out Func2=In Func1=Out Func0=Out 

// State7=P State6=0 State5=0 State4=0 State3=0 State2=P State1=0 State0=0 

PORTD=0x84;

DDRD=0x7B;

// Port E initialization

// Func2=Out Func1=Out Func0=Out 

// State2=0 State1=0 State0=0 

PORTE=0x00;

DDRE=0x07;

// Timer/Counter 0 initialization

// Clock source: System Clock

// Clock value: Timer 0 Stopped

// Mode: Normal top=FFh

// OC0 output: Disconnected

TCCR0=0x00;

TCNT0=0x00;

OCR0=0x00;

// Timer/Counter 1 initialization

// Clock source: System Clock

// Clock value: Timer 1 Stopped

// Mode: Normal top=FFFFh

// OC1A output: Discon.

// OC1B output: Discon.

// Noise Canceler: Off

// Input Capture on Falling Edge

// Timer 1 Overflow Interrupt: Off

// Input Capture Interrupt: Off

// Compare A Match Interrupt: Off

// Compare B Match Interrupt: Off

TCCR1A=0x00;

TCCR1B=0x00;

TCNT1H=0x00;

TCNT1L=0x00;

ICR1H=0x00;

ICR1L=0x00;

OCR1AH=0x00;

OCR1AL=0x00;

OCR1BH=0x00;

OCR1BL=0x00;

// External Interrupt(s) initialization

// INT0: On

// INT0 Mode: Low level

// INT1: Off

// INT2: Off

GICR|=0x00; //40

MCUCR=0x00;

EMCUCR=0x00;

GIFR=0x00; //40

// Timer(s)/Counter(s) Interrupt(s) initialization

TIMSK=0x00;

// Analog Comparator initialization

// Analog Comparator: Off

// Analog Comparator Input Capture by Timer/Counter 1: Off

ACSR=0x80;

delay_ms(100);

 PORTB.1=0; //RS0

 PORTB.0=1; //RD

 PORTB.3=1; //WR

 PORTB.2=1; //CS

// LCD module initialization

lcd_init(16);

 lcd_clear();lcd_gotoxy(3,0);lcd_putsf("Systemstart");

  PORTE.0=1;delay_ms(3000);

   lcd_clear(); 

// Global enable interrupts

#asm("sei")

 PORTE.0=0;

 i=0; 

 //PORTD.4=1; //relais K3 an 

 PORTB.1=0;//RS0

 PORTB.0=1;//RD

 PORTB.3=1;//WR

 PORTB.2=1;//CS

while (1)

      {

       if(PIND.7==0)//taster

        {

         PORTC = 0b00001011;

         PORTB.1=1; //RS0

         PORTB.2=0; //CS

         PORTB.3=0; //WR

         #asm

          nop

          nop

          nop

         #endasm

         PORTB.3=1; //WR

         PORTB.2=1; //CS

         delay_ms(2);

         PORTC = 0b00001000;

         PORTB.2=0; //CS

         PORTB.3=0; //WR       

          #asm

          nop

          nop

          nop

         #endasm      

          PORTB.3=1; //WR

         PORTB.2=1; //CS      

          PORTB.1=0; //RS0             

           delay_ms(100);      

        }

      //PORTE.0=1; //gelb

      //PORTE.1=1; //grün

      //PORTE.2=1; //blau

      };

}

//--------------------------------unterprogramme-------------------------------------------------------------------------------------

reset()

{

 PORTE.2=1; //blau an test !!!

  PORTC=0x00;DDRC=0xFF;//portc ausgang

         PORTC=0b00001011;

         PORTB.1=1;//rs0

         PORTB.2=0;//cs

         PORTB.3=0;//WR

         delay_ms(2);

         PORTB.3=1;//WR

         PORTB.2=1;//cs

         PORTB.1=0;//rs0 

         PORTE.2=0; //blau aus test !!!!

}