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標題: LED16X16屏串口方式傳送顯示程序 [打印本頁]

作者: daniu 時間: 2014-12-26 23:33
標題: LED16X16屏串口方式傳送顯示程序

      ORG  0000H
      LJMP  MAIN
      ORG  0030H

;初始化
MAIN: MOV SP,#70H
      MOV A,#00H
      MOV R0,#00H       ;行掃描計數(shù)寄存器清零
KS1:    MOV R1,#00H       ;顯示時間長寄存器清零

;行掃描顯示文字
KS2:    MOV P3,#0E3H ;關閉行掃描，不顯示，使移位時不出現(xiàn)隱亮
      ACALL XS1          ;輸出列數(shù)據(jù)
      MOV P3,#043H ;行輸出，第一行顯示
      ACALL DELAY

      MOV P3,#0E3H
      ACALL XS1
      MOV P3,#047H ;行輸出，第二行顯示，以下雷同
      ACALL DELAY

      MOV P3,#0E3H
      ACALL XS1
      MOV P3,#04BH       ;3
      ACALL DELAY

  MOV P3,#0E3H
      ACALL XS1
      MOV P3,#04FH       ;4
      CALL DELAY

      MOV P3,#0E3H
      ACALL XS1
      MOV P3,#053H       ;5
      ACALL DELAY

      MOV P3,#0E3H
      ACALL XS1
      MOV P3,#057H       ;6
      ACALL DELAY

      MOV P3,#0E3H
      ACALL XS1
      MOV P3,#05BH       ;7
      ACALL DELAY

      MOV P3,#0E3H
      ACALL XS1
      MOV P3,#05FH          ;8
      ACALL DELAY

      MOV P3,#0E3H
      ACALL XS1
      MOV P3,#063H          ;9
      ACALL DELAY

      MOV P3,#0E3H
      ACALL XS1
      MOV P3,#067H       ;10
      ACALL DELAY

      MOV P3,#0E3H
      ACALL XS1
      MOV P3,#06BH       ;11
      ACALL DELAY

      MOV P3,#0E3H
      ACALL XS1
      MOV P3,#06FH          ;12
      ACALL DELAY

      MOV P3,#0E3H
      ACALL XS1
      MOV P3,#073H          ;13
      ACALL DELAY

      MOV P3,#0E3H
      ACALL XS1
      MOV P3,#077H       ;14
      ACALL DELAY

      MOV P3,#0E3H
      ACALL XS1
      MOV P3,#07BH          ;15
      ACALL DELAY

      MOV P3,#0E3H
      ACALL XS1
      MOV P3,#07FH          ; 16
      ACALL  DELAY

L02:    AJMP  KS1
;**********************************************************
;延時子程序
;**********************************************************
DELAY:  MOV  R6,#40H       ;每行掃描顯示時間,AT89C2051要改R6=01H
DEL2: MOV  R7,#2FH       ;AT89C2051要改R7=2FH
DEL3: DJNZ  R7,DEL3
DJNZ  R6,DEL2
RET

YS:    MOV  R5,#01H       ;顯示間隔時間（熄滅時）,AT89C2051要改R5=01H
YS1: MOV  R6,#0FFH
YS2: MOV  R7,#0FFH
YS3: NOP
      NOP
      DJNZ  R7,YS3
DJNZ  R6,YS2
DJNZ  R5,YS1
RET

;**********************************************************
;列顯示，串行
;**********************************************************
XS1: SETB P3.1
      MOV SCON,#00H    ;初始化串行口方式0

      MOV 20H,R0
      MOV A,20H          ;顯示第一個字（左起，即"倒"字）的左半邊
      MOV DPTR,#TAB11
      MOVC A,@A+DPTR    ;查表獲取字形碼
      MOV SBUF,A       ;送串口顯示
      JNB TI,$          ;等待發(fā)送完畢
      CLR TI             ;清發(fā)送標志00

      MOV 20H,R0
      MOV A,20H          ;顯示第一個字（即"倒"字）的右半邊
      MOV DPTR,#TAB12
      MOVC A,@A+DPTR
      MOV SBUF,A
      JNB TI,$
      CLR TI

      MOV 20H,R0
      MOV A,20H       ;顯示第二個字（即"車"字）的左半邊
      MOV DPTR,#TAB21
      MOVC A,@A+DPTR
      MOV SBUF,A
      JNB TI,$
      CLR TI

      MOV 20H,R0
      MOV A,20H          ;顯示第二個字（即"車"字）的右半邊
      MOV DPTR,#TAB22
      MOVC A,@A+DPTR
      MOV SBUF,A
      JNB TI,$
      CLR TI
      MOV 20H,R0
      MOV A,20H
      MOV A,R0          ;顯示第三個字（即"注"字）左半邊
      MOV DPTR,#TAB31
      MOVC A,@A+DPTR
      MOV SBUF,A
      JNB TI,$
      CLR TI

      MOV 20H,R0
      MOV A,20H       ;顯示第三個字（即"注"字）右半邊
      MOV DPTR,#TAB32
      MOVC A,@A+DPTR
      MOV SBUF,A
      JNB TI,$
      CLR TI

      MOV 20H,R0
      MOV A,20H          ;顯示第四個字（即"意"字）的左半邊
      MOV DPTR,#TAB41
      MOVC A,@A+DPTR
      MOV SBUF,A
      JNB TI,$
      CLR TI
      MOV 20H,R0
      MOV A,20H    ;顯示第四個字（即"意"字）右半邊
      MOV DPTR,#TAB42
      MOVC A,@A+DPTR
      MOV SBUF,A
      JNB TI,$
      CLR TI

      INC R0
      CJNE R0,#16,L01    ;16行輪回
      MOV R0,#00H

L01: RET
TAB11:
DB 0FFH,0C0H,0EDH,0F6H,0C0H,0DDH,0BDH,0C0H,0FBH,0F8H,0F3H,0F4H,0EFH,09CH,073H,0CFH;
TAB12:
DB 007H,06FH,0EFH,0DFH,001H,0FDH,0FFH,003H,0FFH,00FH,0DFH,0BFH,03FH,0CFH,0F1H,0FBH;"愛",0
TAB21:
DB 0EFH,0EFH,0DFH,083H,0BAH,0BAH,0B9H,083H,0BBH,0BBH,0BBH,0BBH,083H,0BBH,0BFH,0FFH;
TAB22:
DB 07FH,07FH,07FH,003H,0FBH,0FBH,0FBH,07BH,0BBH,09BH,0DBH,0FBH,0FBH,0D7H,0EFH,0FFH;"的",1
TAB31:
DB 0EFH,0F7H,000H,0FFH,0FFH,080H,0BDH,0BDH,081H,0F7H,0D3H,0D5H,0B5H,076H,0D5H,0EFH;
TAB32:
DB 0DFH,0D7H,0DBH,0DBH,0DFH,001H,0AFH,0AFH,0AFH,0AFH,0AFH,06FH,06DH,0EDH,0F1H,0FFH;"就",2
TAB41:
DB 0FFH,0F0H,0F7H,0F0H,0F7H,0F0H,0FFH,000H,0FEH,0F6H,0F6H,0F6H,0EAH,0DCH,0BFH,0FFH;
TAB42:
DB 0FFH,00FH,0EFH,00FH,0EFH,00FH,0FFH,001H,0FFH,0FFH,007H,0FFH,0FFH,0FFH,001H,0FFH;"是",3

END

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