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Commit 45a267a6 authored by Peter Gerwinski's avatar Peter Gerwinski
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Vortragsfolien und Beispiele 6.6.2023

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20230606/Makefile 0 → 100644
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%.elf: %.c
avr-gcc -Wall -Os -mmcu=atmega328p $< -o $@
%.hex: %.elf
avr-objcopy -O ihex $< $@
download:
./download.sh
20230606/blink-01.c 0 → 100644
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#include <avr/io.h>
#define F_CPU 16000000
#include <util/delay.h>
int main (void)
{
DDRB = 0xff; // alle 8 Ausgänge als Outputs verwenden ("pinMode" für alle 8)
PORTB = 0x20; // Bit Nr. 5 auf 1 setzen, alle anderen auf 0 ("digitalWrite" für alle 8)
while (1)
{
_delay_ms (250);
PORTB = 0x00; /* Hexadezimalzahl. Binär: 0000 0000 */
_delay_ms (250);
PORTB = 0x20; /* Hexadezimalzahl. Binär: 0010 0000 */
} /* Bits zählen: ^ ^ ^------ Bit 0 */
return 0; /* rechts anfangen | `-------- Bit 2 */
} /* mit 0 anfangen `------------ Bit 5 */
20230606/blink-02.c 0 → 100644
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#include <avr/io.h>
#define F_CPU 16000000
#include <util/delay.h>
int main (void)
{
DDRB = 0xfe; // Bit Nr. 0 als Input nutzen
PORTB = 0x20; // Bit Nr. 5 auf 1 setzen, alle anderen auf 0 ("digitalWrite" für alle 8)
while (1)
{
if (PINB & 0x01)
{
_delay_ms (250);
PORTB = 0x00;
_delay_ms (250);
PORTB = 0x20;
}
}
return 0;
}
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.file "blink-02.c"
__SP_H__ = 0x3e
__SP_L__ = 0x3d
__SREG__ = 0x3f
__tmp_reg__ = 0
__zero_reg__ = 1
.section .text.startup,"ax",@progbits
.global main
.type main, @function
main:
/* prologue: function */
/* frame size = 0 */
/* stack size = 0 */
.L__stack_usage = 0
ldi r24,lo8(-2)
out 0x4,r24
ldi r24,lo8(32) ; #include <avr/io.h>
.L6: ;
out 0x5,r24 ; #define F_CPU 16000000
.L2: ; #include <util/delay.h>
sbis 0x3,0 ;
rjmp .L2 ; int main (void)
ldi r18,lo8(799999) ; {
ldi r19,hi8(799999) ; DDRB = 0xfe; // Bit Nr. 0 als Input nutzen
ldi r25,hlo8(799999) ; PORTB = 0x20; // Bit Nr. 5 auf 1 setzen, alle anderen auf 0 ("digitalWrite" für alle 8)
1: subi r18,1 ; while (1)
sbci r19,0 ; {
sbci r25,0 ; if (PINB & 0x01)
brne 1b ; {
rjmp . ; _delay_ms (250);
nop ; PORTB = 0x00;
out 0x5,__zero_reg__ ; _delay_ms (250);
ldi r18,lo8(799999) ; PORTB = 0x20;
ldi r19,hi8(799999) ; }
ldi r25,hlo8(799999) ; }
1: subi r18,1 ; return 0;
sbci r19,0 ; }
sbci r25,0
brne 1b
rjmp .
nop
rjmp .L6
.size main, .-main
.ident "GCC: (GNU) 5.4.0"
20230606/blink-03.c 0 → 100644
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#include <avr/io.h>
#define F_CPU 16000000
#include <util/delay.h>
int main (void)
{
DDRB = 0xfe; // Bit Nr. 0 als Input nutzen
PORTB = 0x20; // Bit Nr. 5 auf 1 setzen, alle anderen auf 0 ("digitalWrite" für alle 8)
while (1)
{
while ((PINB & 0x01) == 0)
; /* just wait */
_delay_ms (250);
PORTB = 0x00;
_delay_ms (250);
PORTB = 0x20;
}
return 0;
}
20230606/blink-04.c 0 → 100644
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#include <avr/io.h>
#define F_CPU 16000000
#include <util/delay.h>
int main (void)
{
DDRB = 0xfe; // Bit Nr. 0 als Input nutzen
PORTB = 0x20; // Bit Nr. 5 auf 1 setzen, alle anderen auf 0 ("digitalWrite" für alle 8)
while (1)
{
_delay_ms (250);
PORTB ^= 0x20;
}
return 0;
}
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.file "blink-04.c"
__SP_H__ = 0x3e
__SP_L__ = 0x3d
__SREG__ = 0x3f
__tmp_reg__ = 0
__zero_reg__ = 1
.section .text.startup,"ax",@progbits
.global main
.type main, @function
main:
/* prologue: function */
/* frame size = 0 */
/* stack size = 0 */
.L__stack_usage = 0
ldi r24,lo8(-2)
out 0x4,r24
ldi r24,lo8(32)
out 0x5,r24
ldi r25,lo8(32)
.L2:
ldi r18,lo8(799999)
ldi r19,hi8(799999)
ldi r24,hlo8(799999)
1: subi r18,1
sbci r19,0
sbci r24,0
brne 1b
rjmp .
nop
in r24,0x5
eor r24,r25
out 0x5,r24
rjmp .L2
.size main, .-main
.ident "GCC: (GNU) 5.4.0"
20230606/blink-05.c 0 → 100644
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#include <avr/io.h>
#include <avr/interrupt.h>
ISR (TIMER0_COMPB_vect)
{
PORTB ^= 0x20;
}
int main (void)
{
cli ();
TCCR0B = (1 << CS01) | (1 << CS00); /* Takt durch 64 dividieren */
TIMSK0 = 1 << OCIE0B; /* Interrupt einschalten */
sei ();
DDRB = 0xfe; // Bit Nr. 0 als Input nutzen
PORTB = 0x20; // Bit Nr. 5 auf 1 setzen, alle anderen auf 0 ("digitalWrite" für alle 8)
while (1)
; /* do very imporant stuff */
return 0;
}
20230606/blink-06.c 0 → 100644
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#include <avr/io.h>
#include <avr/interrupt.h>
#include <stdint.h>
ISR (TIMER0_COMPB_vect)
{
static uint8_t counter = 0;
if (counter++ == 0)
PORTB ^= 0x20;
}
int main (void)
{
cli ();
TCCR0B = (1 << CS01) | (1 << CS00); /* Takt durch 64 dividieren */
TIMSK0 = 1 << OCIE0B; /* Interrupt einschalten */
sei ();
DDRB = 0xfe; // Bit Nr. 0 als Input nutzen
PORTB = 0x20; // Bit Nr. 5 auf 1 setzen, alle anderen auf 0 ("digitalWrite" für alle 8)
while (1)
; /* do very imporant stuff */
return 0;
}
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.file "blink-06.c"
__SP_H__ = 0x3e
__SP_L__ = 0x3d
__SREG__ = 0x3f
__tmp_reg__ = 0
__zero_reg__ = 1
.text
.global __vector_15
.type __vector_15, @function
__vector_15:
push r1
push r0
in r0,__SREG__
push r0
clr __zero_reg__
push r24
push r25
/* prologue: Signal */
/* frame size = 0 */
/* stack size = 5 */
.L__stack_usage = 5
lds r24,counter.1606
ldi r25,lo8(1)
add r25,r24
sts counter.1606,r25
cpse r24,__zero_reg__
rjmp .L1
in r25,0x5
ldi r24,lo8(32)
eor r24,r25
out 0x5,r24
.L1:
/* epilogue start */
pop r25
pop r24
pop r0
out __SREG__,r0
pop r0
pop r1
reti
.size __vector_15, .-__vector_15
.section .text.startup,"ax",@progbits
.global main
.type main, @function
main:
/* prologue: function */
/* frame size = 0 */
/* stack size = 0 */
.L__stack_usage = 0
/* #APP */
; 14 "blink-06.c" 1
cli
; 0 "" 2
/* #NOAPP */
ldi r24,lo8(3)
out 0x25,r24
ldi r24,lo8(4)
sts 110,r24
/* #APP */
; 17 "blink-06.c" 1
sei
; 0 "" 2
/* #NOAPP */
ldi r24,lo8(-2)
out 0x4,r24
ldi r24,lo8(32)
out 0x5,r24
.L5:
rjmp .L5
.size main, .-main
.local counter.1606
.comm counter.1606,1,1
.ident "GCC: (GNU) 5.4.0"
.global __do_clear_bss
20230606/blink-06a.s 0 → 100644
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.file "blink-06.c"
__SP_H__ = 0x3e
__SP_L__ = 0x3d
__SREG__ = 0x3f
__tmp_reg__ = 0
__zero_reg__ = 1
.text
.global __vector_15
.type __vector_15, @function
__vector_15:
push r1
push r0
in r0,__SREG__
push r0 ; #include <avr/io.h>
clr __zero_reg__ ; #include <avr/interrupt.h>
push r24 ; #include <stdint.h>
push r25 ;
/* prologue: Signal */ ; ISR (TIMER0_COMPB_vect)
/* frame size = 0 */ ; {
/* stack size = 5 */ ; static uint8_t counter = 0;
.L__stack_usage = 5 ; if (counter++ == 0)
lds r24,counter.1606 ; PORTB ^= 0x20;
subi r25, lo8(-1) ; ldi r25,lo8(1) ; }
; add r25,r24 ;
sts counter.1606,r24 ; sts counter.1606,r25 ; int main (void)
cpse r24,__zero_reg__ ; {
rjmp .L1 ; cli ();
in r25,0x5 ; TCCR0B = (1 << CS01) | (1 << CS00); /* Takt durch 64 dividieren */
ldi r24,lo8(32) ; TIMSK0 = 1 << OCIE0B; /* Interrupt einschalten */
eor r24,r25 ; sei ();
out 0x5,r24 ; DDRB = 0xfe; // Bit Nr. 0 als Input nutzen
.L1: ; PORTB = 0x20; // Bit Nr. 5 auf 1 setzen, alle anderen auf 0 ("digitalWrite" für alle 8)
/* epilogue start */ ; while (1)
pop r25 ; ; /* do very imporant stuff */
pop r24 ; return 0;
pop r0 ; }
out __SREG__,r0
pop r0
pop r1
reti
.size __vector_15, .-__vector_15
.section .text.startup,"ax",@progbits
.global main
.type main, @function
main:
/* prologue: function */
/* frame size = 0 */
/* stack size = 0 */
.L__stack_usage = 0
/* #APP */
; 14 "blink-06.c" 1
cli
; 0 "" 2
/* #NOAPP */
ldi r24,lo8(3)
out 0x25,r24
ldi r24,lo8(4)
sts 110,r24
/* #APP */
; 17 "blink-06.c" 1
sei
; 0 "" 2
/* #NOAPP */
ldi r24,lo8(-2)
out 0x4,r24
ldi r24,lo8(32)
out 0x5,r24
.L5:
rjmp .L5
.size main, .-main
.local counter.1606
.comm counter.1606,1,1
.ident "GCC: (GNU) 5.4.0"
.global __do_clear_bss
20230606/blink-06b.s 0 → 100644
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.file "blink-06.c"
__SP_H__ = 0x3e
__SP_L__ = 0x3d
__SREG__ = 0x3f
__tmp_reg__ = 0
__zero_reg__ = 1
.text
.global __vector_15
.type __vector_15, @function
__vector_15:
push r1
push r0
in r0,__SREG__
push r0 ; #include <avr/io.h>
clr __zero_reg__ ; #include <avr/interrupt.h>
push r24 ; #include <stdint.h>
push r25 ;
/* prologue: Signal */ ; ISR (TIMER0_COMPB_vect)
/* frame size = 0 */ ; {
/* stack size = 5 */ ; static uint8_t counter = 0;
.L__stack_usage = 5 ; if (++counter == 0) ; if (counter++ == 0)
lds r24,counter.1606 ; PORTB ^= 0x20;
subi r24, lo8(-1) ; ldi r25,lo8(1) ; }
; add r25,r24 ;
sts counter.1606,r24 ; sts counter.1606,r25 ; int main (void)
cpse r24,__zero_reg__ ; {
rjmp .L1 ; cli ();
in r25,0x5 ; TCCR0B = (1 << CS01) | (1 << CS00); /* Takt durch 64 dividieren */
ldi r24,lo8(32) ; TIMSK0 = 1 << OCIE0B; /* Interrupt einschalten */
eor r24,r25 ; sei ();
out 0x5,r24 ; DDRB = 0xfe; // Bit Nr. 0 als Input nutzen
.L1: ; PORTB = 0x20; // Bit Nr. 5 auf 1 setzen, alle anderen auf 0 ("digitalWrite" für alle 8)
/* epilogue start */ ; while (1)
pop r25 ; ; /* do very imporant stuff */
pop r24 ; return 0;
pop r0 ; }
out __SREG__,r0
pop r0
pop r1
reti
.size __vector_15, .-__vector_15
.section .text.startup,"ax",@progbits
.global main
.type main, @function
main:
/* prologue: function */
/* frame size = 0 */
/* stack size = 0 */
.L__stack_usage = 0
/* #APP */
; 14 "blink-06.c" 1
cli
; 0 "" 2
/* #NOAPP */
ldi r24,lo8(3)
out 0x25,r24
ldi r24,lo8(4)
sts 110,r24
/* #APP */
; 17 "blink-06.c" 1
sei
; 0 "" 2
/* #NOAPP */
ldi r24,lo8(-2)
out 0x4,r24
ldi r24,lo8(32)
out 0x5,r24
.L5:
rjmp .L5
.size main, .-main
.local counter.1606
.comm counter.1606,1,1
.ident "GCC: (GNU) 5.4.0"
.global __do_clear_bss
20230606/blink-07.c 0 → 100644
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#include <avr/io.h>
#include <avr/interrupt.h>
#include <stdint.h>
uint8_t flag = 0;
ISR (TIMER0_COMPB_vect)
{
static uint8_t counter = 0;
if (counter++ == 0)
flag = 1;
}
int main (void)
{
cli ();
TCCR0B = (1 << CS01) | (1 << CS00); /* Takt durch 64 dividieren */
TIMSK0 = 1 << OCIE0B; /* Interrupt einschalten */
sei ();
DDRB = 0xfe; // Bit Nr. 0 als Input nutzen
PORTB = 0x20; // Bit Nr. 5 auf 1 setzen, alle anderen auf 0 ("digitalWrite" für alle 8)
while (1)
{
if (flag)
{
PORTB ^= 0x20;
flag = 0;
}
}
return 0;
}
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.file "blink-07.c"
__SP_H__ = 0x3e
__SP_L__ = 0x3d
__SREG__ = 0x3f
__tmp_reg__ = 0
__zero_reg__ = 1
.text
.global __vector_15
.type __vector_15, @function
__vector_15:
push r1
push r0
in r0,__SREG__
push r0
clr __zero_reg__ ; #include <avr/io.h>
push r24 ; #include <avr/interrupt.h>
push r25 ; #include <stdint.h>
/* prologue: Signal */ ;
/* frame size = 0 */ ; uint8_t flag = 0;
/* stack size = 5 */ ;
.L__stack_usage = 5 ; ISR (TIMER0_COMPB_vect)
lds r24,counter.1607 ; {
ldi r25,lo8(1) ; static uint8_t counter = 0;
add r25,r24 ; if (counter++ == 0)
sts counter.1607,r25 ; flag = 1;
cpse r24,__zero_reg__ ; }
rjmp .L1 ;
ldi r24,lo8(1) ; int main (void)
sts flag,r24 ; {
.L1: ; cli ();
/* epilogue start */ ; TCCR0B = (1 << CS01) | (1 << CS00); /* Takt durch 64 dividieren */
pop r25 ; TIMSK0 = 1 << OCIE0B; /* Interrupt einschalten */
pop r24 ; sei ();
pop r0 ; DDRB = 0xfe; // Bit Nr. 0 als Input nutzen
out __SREG__,r0 ; PORTB = 0x20; // Bit Nr. 5 auf 1 setzen, alle anderen auf 0 ("digitalWrite" für alle 8)
pop r0 ; while (1)
pop r1 ; {
reti ; if (flag)
.size __vector_15, .-__vector_15 ; {
.section .text.startup,"ax",@progbits ; PORTB ^= 0x20;
.global main ; flag = 0;
.type main, @function ; }
main: ; }
/* prologue: function */ ; return 0;
/* frame size = 0 */ ; }
/* stack size = 0 */
.L__stack_usage = 0
/* #APP */
; 16 "blink-07.c" 1
cli
; 0 "" 2
/* #NOAPP */
ldi r24,lo8(3)
out 0x25,r24
ldi r24,lo8(4)
sts 110,r24
/* #APP */
; 19 "blink-07.c" 1
sei
; 0 "" 2
/* #NOAPP */
ldi r24,lo8(-2)
out 0x4,r24
ldi r24,lo8(32)
out 0x5,r24
ldi r25,lo8(32)
.L6:
lds r24,flag ; if (flag)
cpse r24,__zero_reg__ ; { ... }
rjmp .L9 ; else
.L8: ; while (1);
rjmp .L8
.L9:
in r24,0x5
eor r24,r25
out 0x5,r24
sts flag,__zero_reg__
rjmp .L6
.size main, .-main
.local counter.1607
.comm counter.1607,1,1
.global flag
.section .bss
.type flag, @object
.size flag, 1
flag:
.zero 1
.ident "GCC: (GNU) 5.4.0"
.global __do_clear_bss
20230606/blink-08.c 0 → 100644
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#include <avr/io.h>
#include <avr/interrupt.h>
#include <stdint.h>
volatile uint8_t flag = 0;
ISR (TIMER0_COMPB_vect)
{
static uint8_t counter = 0;
if (counter++ == 0)
flag = 1;
}
int main (void)
{
cli ();
TCCR0B = (1 << CS01) | (1 << CS00); /* Takt durch 64 dividieren */
TIMSK0 = 1 << OCIE0B; /* Interrupt einschalten */
sei ();
DDRB = 0xfe; // Bit Nr. 0 als Input nutzen
PORTB = 0x20; // Bit Nr. 5 auf 1 setzen, alle anderen auf 0 ("digitalWrite" für alle 8)
while (1)
{
if (flag)
{
PORTB ^= 0x20;
flag = 0;
}
}
return 0;
}
20230606/blink-08.s 0 → 100644
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.file "blink-08.c"
__SP_H__ = 0x3e
__SP_L__ = 0x3d
__SREG__ = 0x3f
__tmp_reg__ = 0
__zero_reg__ = 1
.text
.global __vector_15
.type __vector_15, @function
__vector_15:
push r1
push r0
in r0,__SREG__
push r0
clr __zero_reg__
push r24
push r25
/* prologue: Signal */
/* frame size = 0 */
/* stack size = 5 */
.L__stack_usage = 5
lds r24,counter.1607
ldi r25,lo8(1)
add r25,r24
sts counter.1607,r25
cpse r24,__zero_reg__
rjmp .L1
ldi r24,lo8(1)
sts flag,r24
.L1:
/* epilogue start */
pop r25
pop r24
pop r0
out __SREG__,r0
pop r0
pop r1
reti
.size __vector_15, .-__vector_15
.section .text.startup,"ax",@progbits
.global main
.type main, @function
main:
/* prologue: function */
/* frame size = 0 */
/* stack size = 0 */
.L__stack_usage = 0 ; #include <avr/io.h>
/* #APP */ ; #include <avr/interrupt.h>
; 16 "blink-08.c" 1 ; #include <stdint.h>
cli ;
; 0 "" 2 ; volatile uint8_t flag = 0;
/* #NOAPP */ ;
ldi r24,lo8(3) ; ISR (TIMER0_COMPB_vect)
out 0x25,r24 ; {
ldi r24,lo8(4) ; static uint8_t counter = 0;
sts 110,r24 ; if (counter++ == 0)
/* #APP */ ; flag = 1;
; 19 "blink-08.c" 1 ; }
sei ;
; 0 "" 2 ; int main (void)
/* #NOAPP */ ; {
ldi r24,lo8(-2) ; cli ();
out 0x4,r24 ; TCCR0B = (1 << CS01) | (1 << CS00); /* Takt durch 64 dividieren */
ldi r24,lo8(32) ; TIMSK0 = 1 << OCIE0B; /* Interrupt einschalten */
out 0x5,r24 ; sei ();
ldi r25,lo8(32) ; DDRB = 0xfe; // Bit Nr. 0 als Input nutzen
.L5: ; PORTB = 0x20; // Bit Nr. 5 auf 1 setzen, alle anderen auf 0 ("digitalWrite" für alle 8)
lds r24,flag ; while (1)
tst r24 ; {
breq .L5 ; if (flag)
in r24,0x5 ; {
eor r24,r25 ; PORTB ^= 0x20;
out 0x5,r24 ; flag = 0;
sts flag,__zero_reg__ ; }
rjmp .L5 ; }
.size main, .-main ; return 0;
.local counter.1607 ; }
.comm counter.1607,1,1
.global flag
.section .bss
.type flag, @object
.size flag, 1
flag:
.zero 1
.ident "GCC: (GNU) 5.4.0"
.global __do_clear_bss
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port=$(ls -rt /dev/ttyACM* | tail -1)
echo avrdude -P $port -c arduino -p m328p -U flash:w:$(ls -rt *.hex | tail -1)
avrdude -P $port -c arduino -p m328p -U flash:w:$(ls -rt *.hex | tail -1) 2>/dev/null
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../common/io-ports-and-interrupts.pdf
\ No newline at end of file
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../common/logo-hochschule-bochum-cvh-text-v2.pdf
\ No newline at end of file
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../common/logo-hochschule-bochum.pdf
\ No newline at end of file
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