📄 lcd1602.lss
字号:
lcd1602.elf: file format elf32-avr
Sections:
Idx Name Size VMA LMA File off Algn
0 .text 000001a2 00000000 00000000 00000094 2**0
CONTENTS, ALLOC, LOAD, READONLY, CODE
1 .data 00000022 00800060 000001a2 00000236 2**0
CONTENTS, ALLOC, LOAD, DATA
2 .bss 00000000 00800082 000001c4 00000258 2**0
ALLOC
3 .noinit 00000000 00800082 00800082 00000258 2**0
CONTENTS
4 .eeprom 00000000 00810000 00810000 00000258 2**0
CONTENTS
5 .stab 0000036c 00000000 00000000 00000258 2**2
CONTENTS, READONLY, DEBUGGING
6 .stabstr 00000084 00000000 00000000 000005c4 2**0
CONTENTS, READONLY, DEBUGGING
7 .debug_aranges 00000014 00000000 00000000 00000648 2**0
CONTENTS, READONLY, DEBUGGING
8 .debug_pubnames 0000006d 00000000 00000000 0000065c 2**0
CONTENTS, READONLY, DEBUGGING
9 .debug_info 00000206 00000000 00000000 000006c9 2**0
CONTENTS, READONLY, DEBUGGING
10 .debug_abbrev 0000010c 00000000 00000000 000008cf 2**0
CONTENTS, READONLY, DEBUGGING
11 .debug_line 000001c6 00000000 00000000 000009db 2**0
CONTENTS, READONLY, DEBUGGING
12 .debug_str 00000108 00000000 00000000 00000ba1 2**0
CONTENTS, READONLY, DEBUGGING
Disassembly of section .text:
00000000 <__vectors>:
0: 0c 94 2a 00 jmp 0x54 <__ctors_end>
4: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
8: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
c: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
10: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
14: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
18: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
1c: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
20: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
24: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
28: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
2c: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
30: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
34: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
38: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
3c: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
40: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
44: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
48: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
4c: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
50: 0c 94 45 00 jmp 0x8a <__bad_interrupt>
00000054 <__ctors_end>:
54: 11 24 eor r1, r1
56: 1f be out 0x3f, r1 ; 63
58: cf e5 ldi r28, 0x5F ; 95
5a: d4 e0 ldi r29, 0x04 ; 4
5c: de bf out 0x3e, r29 ; 62
5e: cd bf out 0x3d, r28 ; 61
00000060 <__do_copy_data>:
60: 10 e0 ldi r17, 0x00 ; 0
62: a0 e6 ldi r26, 0x60 ; 96
64: b0 e0 ldi r27, 0x00 ; 0
66: e2 ea ldi r30, 0xA2 ; 162
68: f1 e0 ldi r31, 0x01 ; 1
6a: 02 c0 rjmp .+4 ; 0x70 <.do_copy_data_start>
0000006c <.do_copy_data_loop>:
6c: 05 90 lpm r0, Z+
6e: 0d 92 st X+, r0
00000070 <.do_copy_data_start>:
70: a2 38 cpi r26, 0x82 ; 130
72: b1 07 cpc r27, r17
74: d9 f7 brne .-10 ; 0x6c <.do_copy_data_loop>
00000076 <__do_clear_bss>:
76: 10 e0 ldi r17, 0x00 ; 0
78: a2 e8 ldi r26, 0x82 ; 130
7a: b0 e0 ldi r27, 0x00 ; 0
7c: 01 c0 rjmp .+2 ; 0x80 <.do_clear_bss_start>
0000007e <.do_clear_bss_loop>:
7e: 1d 92 st X+, r1
00000080 <.do_clear_bss_start>:
80: a2 38 cpi r26, 0x82 ; 130
82: b1 07 cpc r27, r17
84: e1 f7 brne .-8 ; 0x7e <.do_clear_bss_loop>
86: 0c 94 ad 00 jmp 0x15a <main>
0000008a <__bad_interrupt>:
8a: 0c 94 00 00 jmp 0x0 <__vectors>
0000008e <delay_ms>:
#define INDATA PINB /* Input data bus---PINB */
void delay_ms(unsigned int ms)
{
8e: cf 93 push r28
90: df 93 push r29
*/
void
_delay_loop_2(uint16_t __count)
{
__asm__ volatile (
92: 9c 01 movw r18, r24
94: 21 50 subi r18, 0x01 ; 1
96: 30 40 sbci r19, 0x00 ; 0
98: 8f ef ldi r24, 0xFF ; 255
9a: 2f 3f cpi r18, 0xFF ; 255
9c: 38 07 cpc r19, r24
9e: 69 f0 breq .+26 ; 0xba <delay_ms+0x2c>
a0: a0 ed ldi r26, 0xD0 ; 208
a2: b7 e0 ldi r27, 0x07 ; 7
a4: c0 e0 ldi r28, 0x00 ; 0
a6: d0 e0 ldi r29, 0x00 ; 0
a8: cd 01 movw r24, r26
aa: 01 97 sbiw r24, 0x01 ; 1
ac: f1 f7 brne .-4 ; 0xaa <delay_ms+0x1c>
ae: 21 50 subi r18, 0x01 ; 1
b0: 30 40 sbci r19, 0x00 ; 0
b2: 8f ef ldi r24, 0xFF ; 255
b4: 2f 3f cpi r18, 0xFF ; 255
b6: 38 07 cpc r19, r24
b8: b9 f7 brne .-18 ; 0xa8 <delay_ms+0x1a>
ba: df 91 pop r29
bc: cf 91 pop r28
be: 08 95 ret
000000c0 <lcd_busy>:
while(ms--)
_delay_ms(1);
}
unsigned char lcd_busy()
{
unsigned char result;
CLR_RS(); /* RS = 0 , RW = 1 , read data from lcd */
c0: 94 98 cbi 0x12, 4 ; 18
SET_RW();
c2: 95 9a sbi 0x12, 5 ; 18
DATA_IN(); /* Set the data bus as input */
c4: 17 ba out 0x17, r1 ; 23
asm("nop"); /* After change the data bus direction , you must wait aT least one clock */
c6: 00 00 nop
SET_EN();
c8: 96 9a sbi 0x12, 6 ; 18
CLR_EN();
ca: 96 98 cbi 0x12, 6 ; 18
result = INDATA&0x80; /* Check the MSB and */
cc: 86 b3 in r24, 0x16 ; 22
ce: 80 78 andi r24, 0x80 ; 128
DATA_OUT(); /* Set the data bus as output */
d0: 9f ef ldi r25, 0xFF ; 255
d2: 97 bb out 0x17, r25 ; 23
return result;
}
d4: 99 27 eor r25, r25
d6: 08 95 ret
000000d8 <WriteCommand>:
void WriteCommand(unsigned char Command)
{
d8: cf 93 push r28
da: c8 2f mov r28, r24
while(lcd_busy()); /* Wait while the lcd is not busy */
dc: 0e 94 60 00 call 0xc0 <lcd_busy>
e0: 88 23 and r24, r24
e2: e1 f7 brne .-8 ; 0xdc <WriteCommand+0x4>
CLR_RS(); /* RS = 0 , RW = 0 , write command to lcd */
e4: 94 98 cbi 0x12, 4 ; 18
CLR_RW();
e6: 95 98 cbi 0x12, 5 ; 18
OUTDATA=Command;
e8: c8 bb out 0x18, r28 ; 24
SET_EN();
ea: 96 9a sbi 0x12, 6 ; 18
CLR_EN();
ec: 96 98 cbi 0x12, 6 ; 18
ee: cf 91 pop r28
f0: 08 95 ret
000000f2 <WriteData>:
}
void WriteData(unsigned char Data)
{
f2: cf 93 push r28
f4: c8 2f mov r28, r24
while(lcd_busy()); /* Wait while the lcd is not busy */
f6: 0e 94 60 00 call 0xc0 <lcd_busy>
fa: 88 23 and r24, r24
fc: e1 f7 brne .-8 ; 0xf6 <WriteData+0x4>
SET_RS(); /* RS = 1 , RW = 0 , write data to lcd */
fe: 94 9a sbi 0x12, 4 ; 18
CLR_RW();
100: 95 98 cbi 0x12, 5 ; 18
OUTDATA=Data;
102: c8 bb out 0x18, r28 ; 24
SET_EN();
104: 96 9a sbi 0x12, 6 ; 18
CLR_EN();
106: 96 98 cbi 0x12, 6 ; 18
108: cf 91 pop r28
10a: 08 95 ret
0000010c <Display>:
}
void Display(unsigned char x,unsigned char y,unsigned char *Data)
{
10c: cf 93 push r28
10e: df 93 push r29
110: ea 01 movw r28, r20
if(x==0)
112: 88 23 and r24, r24
114: 19 f4 brne .+6 ; 0x11c <Display+0x10>
WriteCommand(0x80+y);
116: 86 2f mov r24, r22
118: 80 58 subi r24, 0x80 ; 128
11a: 04 c0 rjmp .+8 ; 0x124 <Display+0x18>
if(x==1)
11c: 81 30 cpi r24, 0x01 ; 1
11e: 21 f4 brne .+8 ; 0x128 <Display+0x1c>
WriteCommand(0xC0+y);
120: 86 2f mov r24, r22
122: 80 54 subi r24, 0x40 ; 64
124: 0e 94 6c 00 call 0xd8 <WriteCommand>
while(*Data!='\0')
{
WriteData(*Data);
Data++;
128: 88 81 ld r24, Y
12a: 88 23 and r24, r24
12c: 31 f0 breq .+12 ; 0x13a <Display+0x2e>
12e: 89 91 ld r24, Y+
130: 0e 94 79 00 call 0xf2 <WriteData>
134: 88 81 ld r24, Y
136: 88 23 and r24, r24
138: d1 f7 brne .-12 ; 0x12e <Display+0x22>
13a: df 91 pop r29
13c: cf 91 pop r28
13e: 08 95 ret
00000140 <LCM_Init>:
}
}
void LCM_Init()
{
WriteCommand(0x38);
140: 88 e3 ldi r24, 0x38 ; 56
142: 0e 94 6c 00 call 0xd8 <WriteCommand>
WriteCommand(0x0C);
146: 8c e0 ldi r24, 0x0C ; 12
148: 0e 94 6c 00 call 0xd8 <WriteCommand>
WriteCommand(0x06);
14c: 86 e0 ldi r24, 0x06 ; 6
14e: 0e 94 6c 00 call 0xd8 <WriteCommand>
WriteCommand(0x01);
152: 81 e0 ldi r24, 0x01 ; 1
154: 0e 94 6c 00 call 0xd8 <WriteCommand>
158: 08 95 ret
0000015a <main>:
}
int main(void)
{
15a: cf e5 ldi r28, 0x5F ; 95
15c: d4 e0 ldi r29, 0x04 ; 4
15e: de bf out 0x3e, r29 ; 62
160: cd bf out 0x3d, r28 ; 61
DDRD|=(1<<PD4)|(1<<PD5)|(1<<PD6); /* Set RS , RW ,EN pin as output */
162: 81 b3 in r24, 0x11 ; 17
164: 80 67 ori r24, 0x70 ; 112
166: 81 bb out 0x11, r24 ; 17
LCM_Init(); /* Config the lcd */
168: 0e 94 a0 00 call 0x140 <LCM_Init>
while(1)
{
Display(0,0,"Welcome To HUST!");
16c: 40 e6 ldi r20, 0x60 ; 96
16e: 50 e0 ldi r21, 0x00 ; 0
170: 60 e0 ldi r22, 0x00 ; 0
172: 86 2f mov r24, r22
174: 0e 94 86 00 call 0x10c <Display>
delay_ms(2000);
178: 80 ed ldi r24, 0xD0 ; 208
17a: 97 e0 ldi r25, 0x07 ; 7
17c: 0e 94 47 00 call 0x8e <delay_ms>
WriteCommand(0x01);
180: 81 e0 ldi r24, 0x01 ; 1
182: 0e 94 6c 00 call 0xd8 <WriteCommand>
Display(1,0,"0123456789ABCDEF");
186: 41 e7 ldi r20, 0x71 ; 113
188: 50 e0 ldi r21, 0x00 ; 0
18a: 60 e0 ldi r22, 0x00 ; 0
18c: 81 e0 ldi r24, 0x01 ; 1
18e: 0e 94 86 00 call 0x10c <Display>
delay_ms(2000);
192: 80 ed ldi r24, 0xD0 ; 208
194: 97 e0 ldi r25, 0x07 ; 7
196: 0e 94 47 00 call 0x8e <delay_ms>
WriteCommand(0x01);
19a: 81 e0 ldi r24, 0x01 ; 1
19c: 0e 94 6c 00 call 0xd8 <WriteCommand>
1a0: e5 cf rjmp .-54 ; 0x16c <main+0x12>
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