Difference between revisions of "U23 2007/Inhalt Abend 2/Schieberegister"
< U23 2007 | Inhalt Abend 2
| Line 5: | Line 5: | ||
#define STROBE 2 | #define STROBE 2 | ||
#define OE 3 | #define OE 3 | ||
| + | |||
int main(void) | int main(void) | ||
{ | { | ||
Revision as of 21:42, 14 May 2007
Schieberegister - Ansteuerung schiebe 1 0 rein und Ausgabe aktiv.
#include <avr/io.h>
#define CP 0
#define DATA 1
#define STROBE 2
#define OE 3
int main(void)
{
DDRA = 0xFF;
PORTA = 0x00;
PORTA |= (1<<STROBE)|(1<<OE);
PORTA |= (1<<DATA);
PORTA |= (1<<CP);
PORTA &= ~(1<<CP);
PORTA &= ~(1<<DATA);
PORTA |= (1<<CP);
PORTA &= ~(1<<CP);
return 0;
}
