Difference between revisions of "U23 2007/Inhalt Abend 2/Schieberegister"
< U23 2007 | Inhalt Abend 2
| Line 17: | Line 17: | ||
PORTA |= (1<<CP); | PORTA |= (1<<CP); | ||
PORTA &= ~(1<<CP); | PORTA &= ~(1<<CP); | ||
| + | return 0; | ||
| + | } | ||
| + | |||
| + | |||
| + | Schieberegister - Ansteuerung | ||
| + | setzte 1 rein und Ausgabe an! | ||
| + | int main(void) | ||
| + | { | ||
| + | DDRA = 0xFF; | ||
| + | PORTA = 0x0E; | ||
| + | PORTA = 0x0F; | ||
| + | PORTA = 0x0E; | ||
| + | |||
| + | |||
return 0; | return 0; | ||
} | } | ||
Revision as of 22:44, 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;
}
Schieberegister - Ansteuerung
setzte 1 rein und Ausgabe an!
int main(void)
{
DDRA = 0xFF;
PORTA = 0x0E;
PORTA = 0x0F;
PORTA = 0x0E;
return 0; }
