150 lines
4.7 KiB
Plaintext
150 lines
4.7 KiB
Plaintext
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main.elf: file format elf32-avr
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Sections:
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Idx Name Size VMA LMA File off Algn
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0 .text 00000062 00000000 00000000 00000074 2**1
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CONTENTS, ALLOC, LOAD, READONLY, CODE
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1 .data 00000000 00800060 00000062 000000d6 2**0
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CONTENTS, ALLOC, LOAD, DATA
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2 .comment 00000011 00000000 00000000 000000d6 2**0
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CONTENTS, READONLY
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3 .note.gnu.avr.deviceinfo 0000003c 00000000 00000000 000000e8 2**2
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CONTENTS, READONLY
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4 .debug_aranges 00000028 00000000 00000000 00000124 2**0
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CONTENTS, READONLY, DEBUGGING
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5 .debug_info 00000410 00000000 00000000 0000014c 2**0
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CONTENTS, READONLY, DEBUGGING
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6 .debug_abbrev 0000037f 00000000 00000000 0000055c 2**0
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CONTENTS, READONLY, DEBUGGING
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7 .debug_line 0000010a 00000000 00000000 000008db 2**0
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CONTENTS, READONLY, DEBUGGING
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8 .debug_frame 00000064 00000000 00000000 000009e8 2**2
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CONTENTS, READONLY, DEBUGGING
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9 .debug_str 00000217 00000000 00000000 00000a4c 2**0
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CONTENTS, READONLY, DEBUGGING
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10 .debug_ranges 00000018 00000000 00000000 00000c63 2**0
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CONTENTS, READONLY, DEBUGGING
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Disassembly of section .text:
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00000000 <__vectors>:
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0: 09 c0 rjmp .+18 ; 0x14 <__ctors_end>
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2: 0e c0 rjmp .+28 ; 0x20 <__bad_interrupt>
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4: 0d c0 rjmp .+26 ; 0x20 <__bad_interrupt>
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6: 0c c0 rjmp .+24 ; 0x20 <__bad_interrupt>
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8: 0b c0 rjmp .+22 ; 0x20 <__bad_interrupt>
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a: 0a c0 rjmp .+20 ; 0x20 <__bad_interrupt>
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c: 09 c0 rjmp .+18 ; 0x20 <__bad_interrupt>
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e: 08 c0 rjmp .+16 ; 0x20 <__bad_interrupt>
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10: 07 c0 rjmp .+14 ; 0x20 <__bad_interrupt>
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12: 06 c0 rjmp .+12 ; 0x20 <__bad_interrupt>
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00000014 <__ctors_end>:
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14: 11 24 eor r1, r1
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16: 1f be out 0x3f, r1 ; 63
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18: cf e9 ldi r28, 0x9F ; 159
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1a: cd bf out 0x3d, r28 ; 61
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1c: 1a d0 rcall .+52 ; 0x52 <main>
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1e: 1f c0 rjmp .+62 ; 0x5e <_exit>
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00000020 <__bad_interrupt>:
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20: ef cf rjmp .-34 ; 0x0 <__vectors>
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00000022 <adc_setup>:
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#include "main.h"
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void adc_setup (void)
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{
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// Set the ADC input to PB2/ADC1
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ADMUX |= (1 << MUX0);
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22: 38 9a sbi 0x07, 0 ; 7
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ADMUX |= (1 << ADLAR);
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24: 3d 9a sbi 0x07, 5 ; 7
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// Set the prescaler to clock/128 & enable ADC
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ADCSRA |= (1 << ADPS1) | (1 << ADPS0) | (1 << ADEN);
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26: 86 b1 in r24, 0x06 ; 6
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28: 83 68 ori r24, 0x83 ; 131
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2a: 86 b9 out 0x06, r24 ; 6
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2c: 08 95 ret
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0000002e <adc_read>:
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}
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int adc_read (void)
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{
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// Start the conversion
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ADCSRA |= (1 << ADSC);
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2e: 36 9a sbi 0x06, 6 ; 6
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// Wait for it to finish
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while (ADCSRA & (1 << ADSC));
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30: 36 99 sbic 0x06, 6 ; 6
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32: fe cf rjmp .-4 ; 0x30 <adc_read+0x2>
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return ADCH;
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34: 85 b1 in r24, 0x05 ; 5
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}
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36: 90 e0 ldi r25, 0x00 ; 0
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38: 08 95 ret
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0000003a <pwm_setup>:
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void pwm_setup (void)
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{
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// Set Timer 0 prescaler to clock/8.
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// At 9.6 MHz this is 1.2 MHz.
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TCCR0B |= (1 << CS01) | (1 << CS00);
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3a: 83 b7 in r24, 0x33 ; 51
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3c: 83 60 ori r24, 0x03 ; 3
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3e: 83 bf out 0x33, r24 ; 51
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// Set to 'Fast PWM' mode
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TCCR0A |= (1 << WGM01) | (1 << WGM00);
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40: 8f b5 in r24, 0x2f ; 47
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42: 83 60 ori r24, 0x03 ; 3
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44: 8f bd out 0x2f, r24 ; 47
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// Clear OC0B output on compare match, upwards counting.
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TCCR0A |= (1 << COM0B1);
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46: 8f b5 in r24, 0x2f ; 47
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48: 80 62 ori r24, 0x20 ; 32
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4a: 8f bd out 0x2f, r24 ; 47
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4c: 08 95 ret
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0000004e <pwm_write>:
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}
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void pwm_write (int val)
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{
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OCR0B = val;
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4e: 89 bd out 0x29, r24 ; 41
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50: 08 95 ret
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00000052 <main>:
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int main (void)
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{
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int adc_in;
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// LED is an output.
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DDRB |= (1 << LED);
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52: bb 9a sbi 0x17, 3 ; 23
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adc_setup();
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54: e6 df rcall .-52 ; 0x22 <adc_setup>
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pwm_setup();
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56: f1 df rcall .-30 ; 0x3a <pwm_setup>
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while (1) {
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// Get the ADC value
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adc_in = adc_read();
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58: ea df rcall .-44 ; 0x2e <adc_read>
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TCCR0A |= (1 << COM0B1);
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}
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void pwm_write (int val)
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{
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OCR0B = val;
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5a: 89 bd out 0x29, r24 ; 41
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5c: fd cf rjmp .-6 ; 0x58 <main+0x6>
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0000005e <_exit>:
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5e: f8 94 cli
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00000060 <__stop_program>:
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60: ff cf rjmp .-2 ; 0x60 <__stop_program>
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