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| Zeile 174: |
Zeile 174: |
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| ==Demo Programm== | | ==Demo Programm== |
| | | Ein kleines Demoprogramm (inkl. Kurzanleitung)das kleine MUster mit den LEDs erzeugt gibt es unter [[LMB-TestCode1]] |
| Hier der Quelltext f�r das Demo Programm:
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| <pre>
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| //This is a simple Demo for the Labor Board.
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| //It displays 2 different light patterns on the LEDs,
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| //and allows the pattern to be selected, and the speed to be controled
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| //with the 4 keys.
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| #include <inttypes.h>
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| #include <avr/io.h>
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| int
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| main (void)
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| {
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| DDRB = 0; //Port B all inputs
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| PORTB = 0x0F; //Internal Pullups on on key inputs
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|
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| DDRC = 0xFF; //Port C all outputs
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| PORTC = 0x01; //1 LED on to start of Patterns
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|
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| int x, delay=10000; char mode=0, ud=0;
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|
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| for ( ;; ){ //for ever
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|
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| //this is a time delay loop
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| for(x=0; x< delay; x++){
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| //The volatile qualifier tells the compiler not to optimize
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| //it away.
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| volatile int y = 0;
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| };
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|
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| if(!mode){
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| //knight rider mode
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| switch (ud){
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| case 0: //shift light left
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| if( (PORTC<<=1) == 0x80 ){ //until bit7 is reached
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| ud = 1;
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| };
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| break;
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| case 1: //shift bit right
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| if( (PORTC>>=1) == 0x01 ){ //until bit0 is reached
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| ud = 0;
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| };
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| break;
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| };
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| }else{
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| //scroll mode
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| switch (ud){
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| case 0:
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| PORTC|=(PORTC<<1);//shift additional ones in from left
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| if(PORTC & 0x80) //until bit7 is reached
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| ud = 1;
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| break;
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| case 1:
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| PORTC<<=1; //shift zeros in
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| if (PORTC == 0){//until all zeros
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| ud = 0;
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| PORTC = 0x01;//start over
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| }
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| break;
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|
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| };
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|
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| }
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| switch(PINB&0x0f){
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| case 0x0E: //Button 1 pressed
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| if (delay<30000){
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| delay += 100;
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| }
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| break;
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| case 0x0D: //Button 2 pressed
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| if (delay>1000){
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| delay -= 100;
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| }
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| break;
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| case 0x0B: //Button 3 pressed
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| mode = 0;
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| break;
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| case 0x07: //Button 4 pressed
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| mode = 1;
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| break;
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| };
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|
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|
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| };
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| }
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| </pre>
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| Die Zeilenumbr�che wurden vom Wiki geklaut. Ich arbeite an dem Problem....
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| [[Category:Veranstaltungen]] | | [[Category:Veranstaltungen]] |
| [[Category:Microcontroller]] | | [[Category:Microcontroller]] |