Difference between revisions of "U23 2008/Gruppe1"
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</source> | </source> | ||
− | ===Sourcecode, | + | ===Sourcecode,Assembler LCD HD44780 kompatibel, 2x16 Zeichen @ 16Mhz (20Mhz funktioniert auch): === |
<source lang="asm"> | <source lang="asm"> | ||
+ | |||
+ | ;*************************************************************************** | ||
+ | ;* W I C H T I G ! | ||
+ | ;* | ||
+ | ;* Das Programm wurde in AVR Studio unter Windows geschrieben. | ||
+ | ;* Es sind kleine Anpassungen notwendig um unter AVRGCC kompiliert zu werden | ||
+ | ;* Dies umfasst z.b. den Stackpointer ( lo8(RAMEND), hi8(RAMEND) ) | ||
+ | ;* sowie der tausch von .def in #define . #define ersetzt .equ ! | ||
+ | ;* | ||
+ | ;*************************************************************************** | ||
+ | |||
+ | .include "m168def.inc" | ||
+ | ;****************************** | ||
+ | ; Pin Belegung | ||
+ | ;DB4-7 = PORT D. 0-3 | ||
+ | ;ENABLE=PORT D Pin 7 | ||
+ | ;RS= PORTD Pin 4 | ||
+ | |||
.def temp = r16 | .def temp = r16 | ||
.def temp1=r20 | .def temp1=r20 | ||
Line 187: | Line 205: | ||
.equ rs=4 | .equ rs=4 | ||
.equ LCD_PORT = PORTD | .equ LCD_PORT = PORTD | ||
− | .equ LCD_DDR = DDRD | + | .equ LCD_DDR = DDRD |
+ | |||
+ | .org 0x0000 | ||
+ | rjmp main | ||
+ | |||
+ | main: | ||
− | . | + | ldi temp, LOW(RAMEND) ; Stackpointer initialisieren |
− | + | out SPL, temp | |
+ | ldi temp, HIGH(RAMEND) | ||
+ | out SPH, temp | ||
+ | |||
+ | ldi temp,0xFF ; Port D als Ausgang | ||
+ | out LCD_DDR, temp | ||
+ | |||
+ | |||
+ | lcdinit: ldi temp, 0x00 | ||
+ | out LCD_PORT, temp | ||
+ | ;****************************************** | ||
+ | ; LCD mitteilen, dass im 4 Bit Modus gearbeitet wird | ||
+ | rcall delay15ms ;Hier mindestens 15ms warten! | ||
+ | rcall delay15ms ;Zur sicherheit! z.b. nach Stromeinschalten! | ||
+ | |||
+ | |||
+ | ldi temp, 0b00000011 | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine | ||
+ | |||
+ | rcall delay4ms ;Mindestens 4,1ms warten! | ||
+ | |||
+ | ldi temp, 0b00000011 | ||
+ | out LCD_PORT,temp | ||
+ | rcall enable_routine | ||
+ | |||
+ | |||
+ | |||
+ | rcall short_delay ;Mindestens 100us warten! | ||
+ | rcall short_delay | ||
+ | |||
+ | ldi temp, 0b00000011 | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine | ||
+ | |||
+ | |||
+ | ldi temp, 0b00000010 ;Hier wird letztendlich 4-Bit Modus eingeschaltet | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine | ||
+ | rcall short_delay ;Hier zur sicherheit 60us zum abarbeiten | ||
+ | ;4 Bit Modus Mitteilung abgeschlossen | ||
+ | ; ******************************************* | ||
+ | |||
+ | |||
+ | ldi temp, 0b00000010 ;2 Zeilig 5x8 matrix | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine | ||
+ | ldi temp,0b00001000 | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine | ||
+ | |||
+ | rcall short_delay ;Kurze Wartezeit zum abarbeiten | ||
+ | rcall display_off | ||
+ | rcall clear_display | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | ldi temp, 0b00000000; Kursor nach rechts wandernd, kein display shift | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine | ||
+ | ldi temp, 0b00000010 | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine | ||
+ | rcall delay2ms | ||
+ | |||
+ | rcall display_on | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | ldi temp, 0b00000000 ; display ein, Cursor ein, Cursor Blinkend | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine | ||
+ | ldi temp, 0b00001111 | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine ; ferig | ||
+ | |||
+ | ldi temp, 'H' | ||
+ | rcall lcd_print | ||
+ | ldi temp, 'a' | ||
+ | rcall lcd_print | ||
+ | |||
+ | ldi temp, 'l' | ||
+ | rcall lcd_print | ||
+ | ldi temp, 'l' | ||
+ | rcall lcd_print | ||
+ | |||
+ | ldi temp, 'o' | ||
+ | rcall lcd_print | ||
+ | ldi temp, ' ' | ||
+ | rcall lcd_print | ||
+ | |||
+ | ldi temp, 'W' | ||
+ | rcall lcd_print | ||
+ | ldi temp, 'e' | ||
+ | rcall lcd_print | ||
+ | |||
+ | ldi temp, 'l' | ||
+ | rcall lcd_print | ||
+ | ldi temp, 't' | ||
+ | rcall lcd_print | ||
+ | |||
+ | |||
+ | |||
+ | loop: | ||
+ | rjmp loop | ||
+ | lcd_print: mov temp1, temp | ||
+ | swap temp | ||
+ | andi temp, 0b00001111 | ||
+ | sbr temp, 1<<rs | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine | ||
+ | |||
+ | andi temp1, 0b00001111 | ||
+ | sbr temp1, 1<<rs | ||
+ | out LCD_PORT, temp1 | ||
+ | rcall enable_routine | ||
+ | rcall short_delay | ||
+ | ret | ||
+ | |||
+ | display_on: | ||
+ | ldi temp, 0b00000000 | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine | ||
+ | |||
+ | ldi temp,0b00001100 | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine | ||
+ | rcall delay2ms | ||
+ | |||
+ | ret | ||
+ | |||
+ | display_off: | ||
+ | ldi temp, 0b00000000 | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine | ||
+ | |||
+ | ldi temp, 0b00001000 | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine | ||
+ | rcall delay2ms | ||
+ | |||
+ | ret | ||
+ | |||
+ | clear_display: | ||
+ | ldi temp, 0b00000000 | ||
+ | out LCD_PORT, temp | ||
+ | rcall enable_routine | ||
+ | |||
+ | ldi temp, 0b00000001 | ||
+ | out LCD_PORT,temp | ||
+ | rcall enable_routine | ||
+ | rcall delay2ms | ||
+ | |||
+ | ret | ||
+ | |||
+ | |||
+ | enable_routine: | ||
+ | |||
+ | |||
+ | |||
+ | rcall short_delay | ||
+ | sbi LCD_PORT,enable | ||
+ | rcall short_delay | ||
+ | cbi LCD_PORT, enable | ||
+ | rcall short_delay | ||
+ | |||
+ | ret | ||
+ | |||
+ | delay15ms: | ||
+ | |||
+ | ; ============================= | ||
+ | ; Warteschleifen-Generator | ||
+ | ; 340000 Zyklen: | ||
+ | ; ----------------------------- | ||
+ | ; warte 339999 Zyklen: | ||
+ | ldi R17, $0B | ||
+ | WGLOOP0: ldi R18, $33 | ||
+ | WGLOOP1: ldi R19, $C9 | ||
+ | WGLOOP2: dec R19 | ||
+ | brne WGLOOP2 | ||
+ | dec R18 | ||
+ | brne WGLOOP1 | ||
+ | dec R17 | ||
+ | brne WGLOOP0 | ||
+ | ; ----------------------------- | ||
+ | ; warte 1 Zyklus: | ||
+ | nop | ||
+ | ; ============================= | ||
+ | |||
+ | ret | ||
+ | |||
+ | delay4ms: | ||
+ | ; ============================= | ||
+ | ; Warteschleifen-Generator | ||
+ | ; 90000 Zyklen: ~4,7ms | ||
+ | ; ----------------------------- | ||
+ | ; warte 89997 Zyklen: | ||
+ | ldi R17, $83 | ||
+ | WALOOP0: ldi R18, $E4 | ||
+ | WALOOP1: dec R18 | ||
+ | brne WALOOP1 | ||
+ | dec R17 | ||
+ | brne WALOOP0 | ||
+ | ; ----------------------------- | ||
+ | ; warte 3 Zyklen: | ||
+ | ldi R17, $01 | ||
+ | WALOOP2: dec R17 | ||
+ | brne WALOOP2 | ||
+ | ; ============================= | ||
+ | ret | ||
+ | |||
+ | |||
+ | delay2ms: | ||
+ | ; ============================= | ||
+ | ; Warteschleifen-Generator | ||
+ | ; 48000 Zyklen: | ||
+ | ; ----------------------------- | ||
+ | ; warte 47988 Zyklen: | ||
+ | ldi R17, $56 | ||
+ | WCLOOP0: ldi R18, $B9 | ||
+ | WCLOOP1: dec R18 | ||
+ | brne WCLOOP1 | ||
+ | dec R17 | ||
+ | brne WCLOOP0 | ||
+ | ; ----------------------------- | ||
+ | ; warte 12 Zyklen: | ||
+ | ldi R17, $04 | ||
+ | WCLOOP2: dec R17 | ||
+ | brne WCLOOP2 | ||
+ | ; ============================= | ||
+ | |||
+ | ret | ||
+ | |||
+ | short_delay: | ||
+ | ; ============================= | ||
+ | ; Warteschleifen-Generator | ||
+ | ; 1000 Zyklen: ca. 60us laut oszi | ||
+ | ; | ||
+ | ; ----------------------------- | ||
+ | ; warte 999 Zyklen: | ||
+ | ldi R17, $03 | ||
+ | WDLOOP0: ldi R18, $6E | ||
+ | WDLOOP1: dec R18 | ||
+ | brne WDLOOP1 | ||
+ | dec R17 | ||
+ | brne WDLOOP0 | ||
+ | ; ----------------------------- | ||
+ | ; warte 1 Zyklus: | ||
+ | nop | ||
+ | ; ============================= | ||
+ | ret | ||
+ | |||
+ | |||
+ | |||
+ | |||
</source> | </source> |
Revision as of 12:03, 26 August 2008
Contents
Gruppe1
Hier eine Neuerung zum Einfügen von Sourcecode:
Bisher wurde der Code zerpflückt, wenn nicht vor jeder Zeile eine "Leertaste" stand.
Nun kann man per <source lang ="language"> HIER KOMMT DER CODE REIN!</source>
wunderbar der Code eingefügt werden und er wird, wie formatiert eingefügt, dargestellt!
Für C verwendet man "c" und für assembler "asm".
Mitglieder:
-...(Hier eure Namen eintragen)
-Maike
-skullbocks
-Gesche
-Trella
-Smasher (Brille und anthrazit-farbenes dell notebook ;) )
Taster
<source lang="c">
//CODE ANFANG
#include <avr/io.h> #include <util/delay.h> uint8_t zeit; uint8_t richtung; uint8_t anaus; uint8_t t0, temp0; /*void lauflicht(void) { }*/ void main(void) { DDRC &= ~(_BV(PC0)|_BV(PC1)|_BV(PC2)|_BV(PC3)); //Schalter DDRC &= _BV(PC4); //Lampe4 DDRD &= _BV(PD3) | _BV(PD6) | _BV(PD7); //Lampe 1-3 PORTC = _BV(PC0)|_BV(PC1)|_BV(PC2)|_BV(PC3); //Pullups t0= 0; anaus = 0x00; //0x00 = aus; 0xff = an _delay_loop_2(0); //Kurz warten, bis pullups ready while(1){ temp0 = PINC & _BV(PC0); _delay_loop_2(0); if((PINC & _BV(PC0)) == temp0){
t0 = temp0;
} if (t0 == 0)
PORTD = 128; else PORTD = 0;
}
}
/*if( (PINC & _BV(PC0)) == 0){
_delay_loop_2(0);
if( (PINC & _BV(PC0)) == 0 ){
//anaus != anaus;
PORTD = 0xff;
}
}*/
//CODE ENDE!
</source>
Sourcecode, Projektabend2:
<source lang="c">
#include <avr/io.h> #include <util/delay.h> #define GET_LAMPE(tl) ( (tl) & 0b11 ) #define GET_ZEIT(tl) ( (tl) >> 2 ) #define GET_TL(l,t) ( ((t)<<2) | ((l)&0b11) ) void lampe(uint8_t l) { switch (l) { case 0: PORTC ^= _BV(PC4); break; case 1: PORTD ^= _BV(PD3); break; case 2: PORTD ^= _BV(PD6); break; case 3: PORTD ^= _BV(PD7); break; default: break; } } void zehntelsekunde(uint8_t f) { uint8_t i; for (i = 0; i < 8*f; i++) /* wait 4 * 65536 cycles */ _delay_loop_2(0); } void schritt(uint8_t tl) { lampe(GET_LAMPE(tl)); zehntelsekunde(GET_ZEIT(tl)); } void main(void) { DDRC = _BV(PC4); DDRD = _BV(PD3) | _BV(PD6) | _BV(PD7); uint8_t ls[] = {GET_TL(0,10),GET_TL(2,20),GET_TL(1,50)}; uint8_t p=0; for ( ;p <3;p++) schritt(ls[p]); for ( ;; ) ; }
</source>
Sourcecode, Projektabend1:
<source lang="c"> /*Dieses Programm lässt ein bestimmtes Muster auf unserem Testboard ablaufen*/
#include <avr/io.h> #include <util/delay.h> void lampe(uint8_t l) { switch (l) { case 0: PORTC ^= _BV(PC4); break; case 1: PORTD ^= _BV(PD3); break; case 2: PORTD ^= _BV(PD6); break; case 3: PORTD ^= _BV(PD7); break; default: break; } } void main(void) { /* config PD7 as output */ DDRC = _BV(PC4); DDRD = _BV(PD3) | _BV(PD6) | _BV(PD7); uint8_t ls[] = {0, 1, 0, 2, 1, 3, 2, 1, 3}; uint8_t p=0; while(1) { //PORTD ^= _BV(PD7); uint8_t i; lampe(ls[p]); p++; for (i = 0; i < 76; i++) { /* wait 4 * 65536 cycles */ _delay_loop_2(0); } } for ( ;; ) ; }
</source>
Sourcecode,Assembler LCD HD44780 kompatibel, 2x16 Zeichen @ 16Mhz (20Mhz funktioniert auch):
<source lang="asm">
- W I C H T I G !
- Das Programm wurde in AVR Studio unter Windows geschrieben.
- Es sind kleine Anpassungen notwendig um unter AVRGCC kompiliert zu werden
- Dies umfasst z.b. den Stackpointer ( lo8(RAMEND), hi8(RAMEND) )
- sowie der tausch von .def in #define . #define ersetzt .equ !
.include "m168def.inc"
;****************************** ; Pin Belegung
- DB4-7 = PORT D. 0-3
- ENABLE=PORT D Pin 7
- RS= PORTD Pin 4
.def temp = r16 .def temp1=r20 .equ enable=5 .equ rs=4 .equ LCD_PORT = PORTD .equ LCD_DDR = DDRD
.org 0x0000
rjmp main
main:
ldi temp, LOW(RAMEND) ; Stackpointer initialisieren out SPL, temp ldi temp, HIGH(RAMEND) out SPH, temp
ldi temp,0xFF ; Port D als Ausgang out LCD_DDR, temp
lcdinit: ldi temp, 0x00
out LCD_PORT, temp
- LCD mitteilen, dass im 4 Bit Modus gearbeitet wird
rcall delay15ms ;Hier mindestens 15ms warten! rcall delay15ms ;Zur sicherheit! z.b. nach Stromeinschalten!
ldi temp, 0b00000011
out LCD_PORT, temp rcall enable_routine
rcall delay4ms ;Mindestens 4,1ms warten!
ldi temp, 0b00000011 out LCD_PORT,temp rcall enable_routine
rcall short_delay ;Mindestens 100us warten! rcall short_delay
ldi temp, 0b00000011 out LCD_PORT, temp rcall enable_routine
ldi temp, 0b00000010 ;Hier wird letztendlich 4-Bit Modus eingeschaltet
out LCD_PORT, temp
rcall enable_routine
rcall short_delay ;Hier zur sicherheit 60us zum abarbeiten
- 4 Bit Modus Mitteilung abgeschlossen
- *******************************************
ldi temp, 0b00000010 ;2 Zeilig 5x8 matrix
out LCD_PORT, temp
rcall enable_routine
ldi temp,0b00001000
out LCD_PORT, temp
rcall enable_routine
rcall short_delay ;Kurze Wartezeit zum abarbeiten rcall display_off rcall clear_display
ldi temp, 0b00000000; Kursor nach rechts wandernd, kein display shift out LCD_PORT, temp rcall enable_routine ldi temp, 0b00000010 out LCD_PORT, temp rcall enable_routine rcall delay2ms
rcall display_on
ldi temp, 0b00000000 ; display ein, Cursor ein, Cursor Blinkend out LCD_PORT, temp rcall enable_routine ldi temp, 0b00001111 out LCD_PORT, temp rcall enable_routine ; ferig
ldi temp, 'H' rcall lcd_print ldi temp, 'a' rcall lcd_print
ldi temp, 'l' rcall lcd_print ldi temp, 'l' rcall lcd_print
ldi temp, 'o' rcall lcd_print ldi temp, ' ' rcall lcd_print
ldi temp, 'W' rcall lcd_print ldi temp, 'e' rcall lcd_print
ldi temp, 'l' rcall lcd_print ldi temp, 't' rcall lcd_print
loop: rjmp loop lcd_print: mov temp1, temp swap temp andi temp, 0b00001111 sbr temp, 1<<rs out LCD_PORT, temp rcall enable_routine
andi temp1, 0b00001111 sbr temp1, 1<<rs out LCD_PORT, temp1 rcall enable_routine rcall short_delay ret
display_on: ldi temp, 0b00000000 out LCD_PORT, temp rcall enable_routine
ldi temp,0b00001100 out LCD_PORT, temp rcall enable_routine rcall delay2ms
ret
display_off: ldi temp, 0b00000000 out LCD_PORT, temp rcall enable_routine
ldi temp, 0b00001000
out LCD_PORT, temp rcall enable_routine rcall delay2ms
ret
clear_display: ldi temp, 0b00000000 out LCD_PORT, temp rcall enable_routine
ldi temp, 0b00000001 out LCD_PORT,temp rcall enable_routine rcall delay2ms
ret
enable_routine:
rcall short_delay sbi LCD_PORT,enable rcall short_delay cbi LCD_PORT, enable rcall short_delay
ret
delay15ms:
- =============================
- Warteschleifen-Generator
- 340000 Zyklen
- -----------------------------
- warte 339999 Zyklen
ldi R17, $0B
WGLOOP0: ldi R18, $33 WGLOOP1: ldi R19, $C9 WGLOOP2: dec R19
brne WGLOOP2 dec R18 brne WGLOOP1 dec R17 brne WGLOOP0
- -----------------------------
- warte 1 Zyklus
nop
- =============================
ret
delay4ms:
- =============================
- Warteschleifen-Generator
- 90000 Zyklen
- ~4,7ms
- -----------------------------
- warte 89997 Zyklen
ldi R17, $83
WALOOP0: ldi R18, $E4 WALOOP1: dec R18
brne WALOOP1 dec R17 brne WALOOP0
- -----------------------------
- warte 3 Zyklen
ldi R17, $01
WALOOP2: dec R17
brne WALOOP2
- =============================
ret
delay2ms:
- =============================
- Warteschleifen-Generator
- 48000 Zyklen
- -----------------------------
- warte 47988 Zyklen
ldi R17, $56
WCLOOP0: ldi R18, $B9 WCLOOP1: dec R18
brne WCLOOP1 dec R17 brne WCLOOP0
- -----------------------------
- warte 12 Zyklen
ldi R17, $04
WCLOOP2: dec R17
brne WCLOOP2
- =============================
ret
short_delay:
- =============================
- Warteschleifen-Generator
- 1000 Zyklen
- ca. 60us laut oszi
- -----------------------------
- warte 999 Zyklen
ldi R17, $03
WDLOOP0: ldi R18, $6E WDLOOP1: dec R18
brne WDLOOP1 dec R17 brne WDLOOP0
- -----------------------------
- warte 1 Zyklus
nop
- =============================
ret
</source>