53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
|
|
||
|
|
#include <string.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
int main (void)
|
||
|
|
{
|
||
|
|
int PORTD = 0xff;
|
||
|
|
int PORTB = 0xff;
|
||
|
|
int cube = 0x000001ff;
|
||
|
|
int cube_level = 0;
|
||
|
|
|
||
|
|
char test[100];
|
||
|
|
|
||
|
|
int i = 0;
|
||
|
|
for (i = 0; i < 3; i++)
|
||
|
|
{
|
||
|
|
|
||
|
|
printf("-----------------\ncube_level = %d\n",cube_level);
|
||
|
|
|
||
|
|
printf("PORTD = 0x%2x\n", PORTD);
|
||
|
|
printf("PORTB = 0x%2x\n", PORTB);
|
||
|
|
|
||
|
|
PORTD &= 0x87; // 0x87 = 0b10000111; // 7tes Bit löschen (Leitung 9) und alle Ebenen deaktivieren
|
||
|
|
|
||
|
|
printf("& 0b10000111: PORTD = 0x%2x\n", PORTD);
|
||
|
|
|
||
|
|
PORTD |= ((1 << cube_level)<< 3); // cube_level setzen (Ebene A=0, B=1, C=2)
|
||
|
|
|
||
|
|
printf("Level festlegen: PORTD = 0x%2x\n", PORTD);
|
||
|
|
|
||
|
|
int tmp = cube_level * 9;
|
||
|
|
|
||
|
|
printf("8 Bits aus cube: PORTD = 0x%2x\n", ((~cube & (0xff << tmp)) >> tmp));
|
||
|
|
// PORTB = 1..8
|
||
|
|
// 0 = leuchtet, 1 = leuchtet nicht (invertiert!)
|
||
|
|
PORTB = ((~cube & (0xff << tmp)) >> tmp);
|
||
|
|
|
||
|
|
printf("Pins1-8: PORTB = 0x%2x\n", PORTB);
|
||
|
|
|
||
|
|
// PORTD &= 0b10111111; // bereits oben erledigt
|
||
|
|
PORTD |= (((~cube & (1 << (tmp+8))) >> (tmp+8)) << 6);
|
||
|
|
|
||
|
|
printf("Pin9: PORTD = 0x%2x\n", PORTD);
|
||
|
|
|
||
|
|
cube_level++;
|
||
|
|
if (cube_level > 2) cube_level = 0;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|