LED点阵显示（汇编程序+图片）

;-------------------------------
;名字：全屏显示：西华大学
;日期：2008年12月13日
;
;----------数据串输出子程序-----
;-----定义P1.0为移位时钟
;-----定义P1.1为锁存时钟
;-----定义P1.2为红色显示串行输出数据
;-----定义P1.3为绿色显示串行输出数据
;---R3 定义为字符编码相对地址
;--R2 为行 相对地址
;----R1为一字符的第几位
CP EQU P1.0
SCK EQU P1.1
Red EQU P1.2
Greed EQU P1.3
Gen1 EQU P1.4
Gen2 EQU P3.5
A1 EQU P1.5
B1 EQU P1.6
C1 EQU P1.7
G1 EQU P3.7

;--------------------------------
ORG 0000H
AJMP START
ORG 0100H
START:
MOV SP,#70H ;初始指针为70H
MOV A, #00H
SETB Gen1
CLR Gen2
CLR G1 ;G2B之高，选择上半屏
SETB Red
SETB Greed
MOV R3,#00
MOV 40H,#00H
MOV 41H,#00H
MOV 42H,#00H ;换半屏比较位
MOV 43H,#00H ;换屏比较位


MAIN:
ACALL SendData
AJMP MAIN
SendData:

ACALL Sendhang
INC 40H
INC 40H
INC 40H
INC 40H
MOV A,40H
CJNE A,#128,L2
MOV 40H,#00H
L2: RET

Sendhang:
MOV DPTR,#CHANL1
MOV A,40H
MOVC A,@A+DPTR
ACALL SendByte

MOV DPTR,#CHANL1
MOV A,40H
INC A
MOVC A,@A+DPTR
ACALL SendByte


MOV DPTR,#CHANL1
MOV A,40H
INC A
INC A
MOVC A,@A+DPTR
ACALL SendByte

MOV DPTR,#CHANL1
MOV A,40H
INC A
INC A
INC A
MOVC A,@A+DPTR
ACALL SendByte



MOV DPTR,#CHANL2
MOV A,40H
MOVC A,@A+DPTR
ACALL SendByte

MOV DPTR,#CHANL2
MOV A,40H
INC A
MOVC A,@A+DPTR
ACALL SendByte

MOV DPTR,#CHANL2
MOV A,40H
INC A
INC A
MOVC A,@A+DPTR
ACALL SendByte

MOV DPTR,#CHANL2
MOV A,40H
INC A
INC A
INC A
MOVC A,@A+DPTR
ACALL SendByte
;-------------------------------------
MOV DPTR,#CHANL3
MOV A,40H
MOVC A,@A+DPTR
ACALL SendByte

MOV DPTR,#CHANL3
MOV A,40H
INC A
MOVC A,@A+DPTR
ACALL SendByte

MOV DPTR,#CHANL3
MOV A,40H
INC A
INC A
MOVC A,@A+DPTR
ACALL SendByte

MOV DPTR,#CHANL3
MOV A,40H
INC A
INC A
INC A
MOVC A,@A+DPTR
ACALL SendByte


MOV DPTR,#CHANL4
MOV A,40H
MOVC A,@A+DPTR
ACALL SendByte

MOV DPTR,#CHANL4
MOV A,40H
INC A
MOVC A,@A+DPTR
ACALL SendByte

MOV DPTR,#CHANL4
MOV A,40H
INC A
INC A
MOVC A,@A+DPTR
ACALL SendByte

MOV DPTR,#CHANL4
MOV A,40H
INC A
INC A
INC A
MOVC A,@A+DPTR
ACALL SendByte
;---------------------------------------
CLR SCK ;锁存数据
NOP
SETB SCK
ACALL SCAN
RET

SendByte:
MOV R1,#08H
CPL A
L1:

CLR CP
RLC A
MOV Red,C
MOV Greed,C
SETB CP
DJNZ R1,L1
RET

;--------------------------------
;换屏------------------------------
Huanping:
INC 43H
MOV A,43H
CJNE A,#02H,HP1
CPL Gen1
CPL Gen2
MOV 43H,#00
HP1:RET

;----串行点阵行扫描子程序 ---------
;----P1.4位行扫描时能引脚G2B ,低电平有效
;----P1.5为行扫描编码地址A
;----P1.6为行扫描编码地址B
;----P1.7为行扫描编码地址C
;----P3.7为行扫描使能引脚G1，高电平有效
;---------------------------------------------
SCAN:
MOV A,42H
CJNE A,#08,HANGOUT;扫描8行后 ，对扫描使能信号G1去反
MOV 42H,#00H
CPL G1
ACALL Huanping
HANGOUT:
MOV A,42H
RL A
RL A
RL A
RL A
RL A

ANL P1,#1FH
ORL P1,A
NOP
ACALL DELAY
INC 42H
RET
;---------------------------------
;------延时子程序 ----------------
DELAY:
SETB RS1
MOV R5, #5
L4:
MOV R4,#2
L3:
MOV R3,#2
DJNZ R3,$
DJNZ R4,L3
DJNZ R5,L4
CLR RS1
RET
CHANL1:
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 00FH, 080H;
DB 000H, 001H, 0FFH, 0C0H;
DB 000H, 07FH, 0FFH, 0C0H;
DB 000H, 07FH, 0FFH, 000H;
DB 000H, 03CH, 01CH, 000H;
DB 000H, 006H, 01CH, 000H;
DB 000H, 007H, 09CH, 000H;
DB 000H, 003H, 0BFH, 0F8H;
DB 000H, 007H, 0F8H, 03FH;
DB 000H, 07FH, 030H, 01FH;
DB 003H, 0E3H, 038H, 01EH;
DB 003H, 083H, 01FH, 01EH;
DB 003H, 087H, 01FH, 01EH;
DB 001H, 09EH, 00CH, 01EH;
DB 001H, 080H, 000H, 03CH;
DB 000H, 0C1H, 0FEH, 03CH;
DB 000H, 0FFH, 0FEH, 03CH;
DB 000H, 07FH, 0FEH, 078H;
DB 000H, 01CH, 003H, 0F0H;
DB 000H, 000H, 001H, 0F0H;
DB 000H, 000H, 000H, 060H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;"西"0
CHANL2:

DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 00CH, 000H;
DB 000H, 003H, 00EH, 000H;
DB 000H, 003H, 08EH, 000H;
DB 000H, 007H, 00EH, 0E0H;
DB 000H, 006H, 00DH, 0F0H;
DB 000H, 00CH, 00FH, 080H;
DB 000H, 01CH, 00FH, 000H;
DB 000H, 01EH, 01CH, 000H;
DB 000H, 03EH, 07CH, 008H;
DB 000H, 076H, 00CH, 018H;
DB 000H, 0C6H, 00CH, 018H;
DB 000H, 006H, 007H, 0FCH;
DB 000H, 006H, 007H, 0F8H;
DB 000H, 006H, 020H, 000H;
DB 000H, 000H, 038H, 000H;
DB 000H, 000H, 07FH, 0FFH;
DB 000H, 03FH, 0FFH, 0FFH;
DB 007H, 0FFH, 0F8H, 000H;
DB 00FH, 000H, 030H, 000H;
DB 000H, 000H, 030H, 000H;
DB 000H, 000H, 030H, 000H;
DB 000H, 000H, 030H, 000H;
DB 000H, 000H, 030H, 000H;
DB 000H, 000H, 030H, 000H;
DB 000H, 000H, 030H, 000H;
DB 000H, 000H, 030H, 000H;
DB 000H, 000H, 030H, 000H;
DB 000H, 000H, 030H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;"华"1
CHANL3:
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 070H, 000H;
DB 000H, 000H, 070H, 000H;
DB 000H, 000H, 070H, 000H;
DB 000H, 000H, 060H, 000H;
DB 000H, 000H, 060H, 000H;
DB 000H, 000H, 060H, 000H;
DB 000H, 000H, 060H, 000H;
DB 000H, 000H, 060H, 080H;
DB 000H, 000H, 0E7H, 080H;
DB 000H, 000H, 0FFH, 080H;
DB 000H, 003H, 0FFH, 080H;
DB 000H, 07FH, 0FCH, 000H;
DB 000H, 07FH, 0F8H, 000H;
DB 000H, 07FH, 0E0H, 000H;
DB 000H, 031H, 0F0H, 000H;
DB 000H, 001H, 0F8H, 000H;
DB 000H, 003H, 0FCH, 000H;
DB 000H, 003H, 01FH, 000H;
DB 000H, 007H, 007H, 080H;
DB 000H, 00EH, 001H, 0C0H;
DB 000H, 01CH, 000H, 0F8H;
DB 000H, 078H, 000H, 07FH;
DB 003H, 0E0H, 000H, 07FH;
DB 00FH, 0C0H, 000H, 07FH;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;"大"2
CHANL4:
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 080H;
DB 000H, 000H, 061H, 0C0H;
DB 000H, 001H, 0E3H, 0C0H;
DB 000H, 030H, 0C3H, 000H;
DB 000H, 038H, 006H, 000H;
DB 000H, 03CH, 00CH, 000H;
DB 000H, 000H, 01FH, 080H;
DB 000H, 001H, 0FFH, 070H;
DB 000H, 007H, 0E0H, 008H;
DB 000H, 07EH, 000H, 00EH;
DB 000H, 000H, 03EH, 01FH;
DB 003H, 001H, 0E7H, 0FEH;
DB 00FH, 00FH, 0C7H, 000H;
DB 00FH, 00EH, 018H, 000H;
DB 000H, 000H, 038H, 000H;
DB 000H, 000H, 03FH, 0F8H;
DB 000H, 000H, 0FFH, 0FCH;
DB 000H, 00FH, 0FCH, 004H;
DB 000H, 07FH, 0F8H, 000H;
DB 000H, 0E0H, 018H, 000H;
DB 000H, 000H, 018H, 000H;
DB 000H, 000H, 018H, 000H;
DB 000H, 000H, 038H, 000H;
DB 000H, 000H, 038H, 000H;
DB 000H, 000H, 038H, 000H;
DB 000H, 007H, 0F0H, 000H;
DB 000H, 000H, 070H, 000H;
DB 000H, 000H, 000H, 000H;
DB 000H, 000H, 000H, 000H;"学"3
END

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