87 lines
1.2 KiB
C
87 lines
1.2 KiB
C
/*
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* MIC-Week1.c
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*
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* Created: 2-2-2016 11:48:44
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* Author : kenny
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*/
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#define F_CPU 8000000UL
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#include <avr/io.h>
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#include <util/delay.h>
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/******************************************************************/
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void wait( int ms )
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/*
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short: Busy wait number of millisecs
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inputs: int ms (Number of millisecs to busy wait)
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outputs:
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notes: Busy wait, not very accurate. Make sure (external)
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clock value is set. This is used by _delay_ms inside
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util/delay.h
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Version : DMK, Initial code
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*******************************************************************/
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{
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for (int i=0; i<ms; i++)
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{
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_delay_ms( 1 ); // library function (max 30 ms at 8MHz)
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}
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}
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int main(void)
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{
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DDRD = 0b00000000; //input
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DDRC = 0b11111111; //output
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//Alleen voor opgave 4
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PORTC = 0x1;
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while (1)
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{
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//opgave1();
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//opgave2();
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//opgave3();
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opgave4();
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/*
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if( (PIND) != 0 )
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{
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speaker( PIND );
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}
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*/
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}
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return 1;
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}
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void speaker(int i)
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{
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//PORTC moet hiervoor output zijn en PORTD input
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PORTC = 0b01010101;
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wait( i );
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PORTC = 0b00000000;
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wait( i );
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}
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void opgave1(void)
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{
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PORTD = 0b10000000;
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wait( 500 );
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PORTD = 0b01000000;
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wait ( 500 );
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}
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void opgave4(void)
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{
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wait( 50 );
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if (PORTC>= 0x80)
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{
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PORTC= 0x1;
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}
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else
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{
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PORTC = (PORTC<<1);
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}
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}
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