Difference between revisions of "U23 2007/Inhalt Abend 2/Schieberegister"
< U23 2007 | Inhalt Abend 2
m (Kategorie) |
|||
| (9 intermediate revisions by 4 users not shown) | |||
| Line 1: | Line 1: | ||
| + | ==Datenblatt== | ||
| + | * [http://www.it.lth.se/datablad/Logik/74HC/74HC4094.pdf 74HC4094 Schieberegister Datenblatt] | ||
| + | |||
| + | ==Bits Setzten== | ||
| + | |||
| + | Setze Bit an Stelle x | ||
| + | PORTA |= (1<<x); | ||
| + | |||
| + | lösche Bit an Stelle x | ||
| + | PORTA &= ~(1<<x); | ||
| + | |||
| + | [<< schifftet 1 um Anzahl von x Stellen! Achtung Anfang zu zählen bei 0] | ||
| + | |||
| + | ==Unsere Ansteuerung== | ||
| + | A0 - CP | ||
| + | A1 - Data | ||
| + | A2 - Strobe | ||
| + | A3 - OE | ||
| + | |||
| + | ==Programm== | ||
Schieberegister - Ansteuerung schiebe 1 0 rein und Ausgabe aktiv. | Schieberegister - Ansteuerung schiebe 1 0 rein und Ausgabe aktiv. | ||
#include <avr/io.h> | #include <avr/io.h> | ||
| Line 5: | Line 25: | ||
#define STROBE 2 | #define STROBE 2 | ||
#define OE 3 | #define OE 3 | ||
| + | |||
int main(void) | int main(void) | ||
{ | { | ||
DDRA = 0xFF; | DDRA = 0xFF; | ||
PORTA = 0x00; | PORTA = 0x00; | ||
| − | PORTA |= (1<<STROBE)|(1<<OE); | + | PORTA |= (1<<STROBE)|(1<<OE); //Setz Ausgänge auf aus! |
| + | |||
PORTA |= (1<<DATA); | PORTA |= (1<<DATA); | ||
PORTA |= (1<<CP); | PORTA |= (1<<CP); | ||
| − | PORTA &= ~(1<<CP); | + | PORTA &= ~(1<<CP); //Wert 1 ins Register geschoben |
| + | |||
PORTA &= ~(1<<DATA); | PORTA &= ~(1<<DATA); | ||
PORTA |= (1<<CP); | PORTA |= (1<<CP); | ||
| − | PORTA &= ~(1<<CP); | + | PORTA &= ~(1<<CP); //Wert 0 ins Register geschoben |
return 0; | return 0; | ||
} | } | ||
| + | |||
| + | |||
| + | Schieberegister - Ansteuerung | ||
| + | setzte 1 rein und Ausgabe an! | ||
| + | int main(void) | ||
| + | { | ||
| + | DDRA = 0xFF; | ||
| + | PORTA = 0x0E; | ||
| + | PORTA = 0x0F; | ||
| + | PORTA = 0x0E; | ||
| + | |||
| + | return 0; | ||
| + | } | ||
| + | |||
| + | [[Category:U23 2007]] | ||
Latest revision as of 13:37, 1 June 2007
Datenblatt
Bits Setzten
Setze Bit an Stelle x
PORTA |= (1<<x);
lösche Bit an Stelle x
PORTA &= ~(1<<x);
[<< schifftet 1 um Anzahl von x Stellen! Achtung Anfang zu zählen bei 0]
Unsere Ansteuerung
A0 - CP A1 - Data A2 - Strobe A3 - OE
Programm
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); //Setz Ausgänge auf aus!
PORTA |= (1<<DATA);
PORTA |= (1<<CP);
PORTA &= ~(1<<CP); //Wert 1 ins Register geschoben
PORTA &= ~(1<<DATA);
PORTA |= (1<<CP);
PORTA &= ~(1<<CP); //Wert 0 ins Register geschoben
return 0;
}
Schieberegister - Ansteuerung
setzte 1 rein und Ausgabe an!
int main(void)
{
DDRA = 0xFF;
PORTA = 0x0E;
PORTA = 0x0F;
PORTA = 0x0E;
return 0;
}
