📄 led_num.lst
字号:
A51 MACRO ASSEMBLER LED_NUM 11/25/2009 23:58:59 PAGE 1
MACRO ASSEMBLER A51 V7.09
OBJECT MODULE PLACED IN LED_Num.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE LED_Num.asm SET(SMALL) DEBUG EP
LOC OBJ LINE SOURCE
1 ;/*****************************************************************************************
2 ;*
*
3 ;* LED点阵实验
*
4 ;* 说明 通过P0 和 P2 作为点阵接口
*
5 ;*要求学员掌握 LED点阵的工作原理和 各点阵脚的定义及接法，具体接线请参考接线说明
*
6 ;*我们采用的LED点阵式是低功耗，在做实验时可以用单片机脚直接驱动 *
7 ;******************************************************************************************
/
8
0030 9 TIM EQU 30H
10
0031 11 CNTA EQU 31H
12
0032 13 CNTB EQU 32H
14
0000 15 ORG 0000H
16
0000 020030 17 LJMP START
18 ;
000B 19 ORG 0BH ;//定时中断0 中断向量地址
20 ;
000B 02004A 21 LJMP T0_Inter;
22
0030 23 ORG 30H
24
0030 753000 25 START: MOV TIM,#00H
26
0033 753100 27 MOV CNTA,#00H
28
0036 753200 29 MOV CNTB,#00H
30
0039 758901 31 MOV TMOD,#01H
32
003C 758CF0 33 MOV TH0,#(65536-4000)/256
34
003F 758A60 35 MOV TL0,#(65536-4000) MOD 256
36
0042 D28C 37 SETB TR0
38 ;开启T0中断
0044 D2A9 39 SETB ET0 ; 允许T0中断
40
0046 D2AF 41 SETB EA ;开总中断
42
0048 80FE 43 SJMP $ ;原地踏步
44
45 ;*****************定时中断服务程序*******************
004A 46 T0_Inter:
47
004A 758CF0 48 MOV TH0,#(65536-4000)/256
49
004D 758A60 50 MOV TL0,#(65536-4000) MOD 256
51
0050 900085 52 MOV DPTR,#TAB
53
A51 MACRO ASSEMBLER LED_NUM 11/25/2009 23:58:59 PAGE 2
0053 E531 54 MOV A,CNTA
55
0055 93 56 MOVC A,@A+DPTR
57
0056 F5A0 58 MOV P2,A
59
0058 90008D 60 MOV DPTR,#DIGIT
61
005B E532 62 MOV A,CNTB
63
005D 75F008 64 MOV B,#8
65
0060 A4 66 MUL AB
67
0061 2531 68 ADD A,CNTA
69
0063 93 70 MOVC A,@A+DPTR
71
0064 F580 72 MOV P0,A
73
0066 0531 74 INC CNTA
75
0068 E531 76 MOV A,CNTA
77
006A B40803 78 CJNE A,#8,NEXT
79
006D 753100 80 MOV CNTA,#00H
81
0070 0530 82 NEXT: INC TIM
83
0072 E530 84 MOV A,TIM
85
0074 B4FA0D 86 CJNE A,#250,NEX
87
0077 753000 88 MOV TIM,#00H
89
007A 0532 90 INC CNTB
91
007C E532 92 MOV A,CNTB
93
007E B40A03 94 CJNE A,#10,NEX
95
0081 753200 96 MOV CNTB,#00H
97
0084 32 98 NEX: RETI
99
0085 FEFDFBF7 100 TAB: DB 0FEH,0FDH,0FBH,0F7H,0EFH,0DFH,0BFH,07FH
0089 EFDFBF7F
101
008D 00003E41 102 DIGIT: DB 00H,00H,3EH,41H,41H,41H,3EH,00H
0091 41413E00
103
0095 00000000 104 DB 00H,00H,00H,00H,21H,7FH,01H,00H
0099 217F0100
105
009D 00002745 106 DB 00H,00H,27H,45H,45H,45H,39H,00H
00A1 45453900
107
00A5 00002249 108 DB 00H,00H,22H,49H,49H,49H,36H,00H
00A9 49493600
109
00AD 00000C14 110 DB 00H,00H,0CH,14H,24H,7FH,04H,00H
00B1 247F0400
111
00B5 00007251 112 DB 00H,00H,72H,51H,51H,51H,4EH,00H
00B9 51514E00
A51 MACRO ASSEMBLER LED_NUM 11/25/2009 23:58:59 PAGE 3
113
00BD 00003E49 114 DB 00H,00H,3EH,49H,49H,49H,26H,00H
00C1 49492600
115
00C5 00004040 116 DB 00H,00H,40H,40H,40H,4FH,70H,00H
00C9 404F7000
117
00CD 00003649 118 DB 00H,00H,36H,49H,49H,49H,36H,00H
00D1 49493600
119
00D5 00003249 120 DB 00H,00H,32H,49H,49H,49H,3EH,00H
00D9 49493E00
121
122 END
A51 MACRO ASSEMBLER LED_NUM 11/25/2009 23:58:59 PAGE 4
SYMBOL TABLE LISTING
------ ----- -------
N A M E T Y P E V A L U E ATTRIBUTES
B. . . . . . . . . D ADDR 00F0H A
CNTA . . . . . . . N NUMB 0031H A
CNTB . . . . . . . N NUMB 0032H A
DIGIT. . . . . . . C ADDR 008DH A
EA . . . . . . . . B ADDR 00A8H.7 A
ET0. . . . . . . . B ADDR 00A8H.1 A
NEX. . . . . . . . C ADDR 0084H A
NEXT . . . . . . . C ADDR 0070H A
P0 . . . . . . . . D ADDR 0080H A
P2 . . . . . . . . D ADDR 00A0H A
START. . . . . . . C ADDR 0030H A
T0_INTER . . . . . C ADDR 004AH A
TAB. . . . . . . . C ADDR 0085H A
TH0. . . . . . . . D ADDR 008CH A
TIM. . . . . . . . N NUMB 0030H A
TL0. . . . . . . . D ADDR 008AH A
TMOD . . . . . . . D ADDR 0089H A
TR0. . . . . . . . B ADDR 0088H.4 A
REGISTER BANK(S) USED: 0
ASSEMBLY COMPLETE. 0 WARNING(S), 0 ERROR(S)
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -