利用STC89C52单片机控制LCD1602（不带中文字库）显示的中文

ALL DELAY1S

MOV P0,#01H

ACALL ENABLE

ACALL DISPLAY_C3

//0

MOV P0,#89H

ACALL ENABLE

MOV P0,#00H

ACALL WRITE

MOV P0,#8AH

ACALL ENABLE

MOV P0,#01H

ACALL WRITE

MOV P0,#0C9H

ACALL ENABLE

MOV P0,#02H

ACALL WRITE

MOV P0,#0CAH

ACALL ENABLE

MOV P0,#03H

ACALL WRITE

LCALL DELAY1S

MOV P0,#01H

ACALL ENABLE

ACALL DISPLAY_C4

//7

MOV P0,#8BH

ACALL ENABLE

MOV P0,#00H

ACALL WRITE

MOV P0,#8CH

ACALL ENABLE

MOV P0,#01H

ACALL WRITE

MOV P0,#0CBH

ACALL ENABLE

MOV P0,#02H

ACALL WRITE

MOV P0,#0CCH

ACALL ENABLE

MOV P0,#03H

ACALL WRITE

//3

MOV P0,#8DH

ACALL ENABLE

MOV P0,#04H

ACALL WRITE

MOV P0,#8EH

ACALL ENABLE

MOV P0,#05H

ACALL WRITE

MOV P0,#0CDH

ACALL ENABLE

MOV P0,#06H

ACALL WRITE

MOV P0,#0CEH

ACALL ENABLE

MOV P0,#07H

ACALL WRITE

LCALL DELAY1S

MOV P0,#01H

ACALL ENABLE

LJMP DISPLAY

DISPLAY_C0:MOV DPTR,#TAB0

MOV R2,#48

ACALL DISPLAY_C

RET

DISPLAY_C1:MOV DPTR,#TAB1

MOV R2,#48

ACALL DISPLAY_C

RET

DISPLAY_C2:MOV DPTR,#TAB2

MOV R2,#48

ACALL DISPLAY_C

RET

DISPLAY_C3:MOV DPTR,#TAB3

MOV R2,#32

ACALL DISPLAY_C

RET

DISPLAY_C4:MOV DPTR,#TAB4

MOV R2,#64

ACALL DISPLAY_C

RET

DISPLAY_C:MOV P0,#40H

ACALL ENABLE

MOV R3,#0

DISPLAY_CC:MOV A,R3

MOVC A,@A+DPTR

MOV P0,A

LCALL WRITE

INC R3

DJNZ R2,DISPLAY_CC

RET

ENABLE:

CLR RS

CLR RW

CLR E

ACALL DELAY

SETB E

RET

WRITE:

SETB RS

CLR RW

CLR E

ACALL DELAY

SETB E

RET

DELAY1S:SETB TR0

CJNE R0,#20,DELAY1S

CLR TR0

MOV R0,#0

RET

DELAY:MOV R5,#08H

L1:MOV R4,#0FAH

L0:DJNZ R4,L0

DJNZ R5,L1

RET

Timer_IT:MOV TH0,#0A6H

MOV TL0,#00H

INC R0

RETI

TAB0: //我

DB 0x00,0x07,0x01,0x01,0x01,0x1F,0x01,0x01

DB 0x19,0x01,0x01,0x01,0x01,0x1F,0x01,0x01

DB 0x00,0x08,0x04,0x04,0x00,0x1F,0x00,0x04

DB 0x01,0x07,0x19,0x01,0x01,0x01,0x05,0x02

DB 0x18,0x00,0x00,0x01,0x06,0x00,0x00,0x00

DB 0x14,0x18,0x10,0x08,0x09,0x05,0x03,0x01

TAB1: //们

DB 0x01,0x01,0x02,0x02,0x06,0x04,0x0c,0x14

DB 0x08,0x04,0x06,0x04,0x10,0x10,0x10,0x10

DB 0x00,0x00,0x1e,0x02,0x02,0x02,0x02,0x02

DB 0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00

DB 0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x00

DB 0x02,0x02,0x02,0x02,0x02,0x0a,0x04,0x00

TAB2: //的

DB 0x02,0x02,0x04,0x0f,0x08,0x08,0x08,0x0f

DB 0x02,0x02,0x02,0x13,0x14,0x14,0x18,0x12

DB 0x00,0x00,0x00,0x1e,0x02,0x02,0x02,0x02

DB 0x08,0x08,0x08,0x08,0x0f,0x08,0x08,0x00

DB 0x11,0x11,0x10,0x10,0x10,0x10,0x00,0x00

DB 0x02,0x12,0x12,0x02,0x02,0x14,0x08,0x00

TAB3: //0

DB 0x00,0x00,0x03,0x04,0x08,0x08,0x08,0x08

DB 0x00,0x00,0x18,0x04,0x02,0x02,0x02,0X02

DB 0x08,0x08,0x08,0x08,0x04,0x03,0x00,0x00

DB 0x02,0x02,0x02,0x02,0x04,0x18,0x00,0x00

TAB4: //7

DB 0x00,0x00,0x0F,0x0F,0x00,0x00,0x00,0x00

DB 0x00,0x00,0x1E,0x1E,0x06,0x06,0x06,0X06

DB 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00

DB 0x06,0x06,0x06,0x06,0x06,0x06,0x00,0x00

//3

DB 0x00,0x00,0x0F,0x0F,0x00,0x00,0x00,0x0F

DB 0x00,0x00,0x1E,0x1E,0x06,0x06,0x06,0X1E

DB 0x0F,0x00,0x00,0x00,0x0F,0x0F,0x00,0x00

DB 0x1E,0x06,0x06,0x06,0x1E,0x1E,0x00,0x00

END

四、总结：

虽然LCD1602可以利用自建字符显示中文，但最多不能超过8个字符位。所以实际应用中，无法同时显示“我们的073”。该段程序没来得及优化，没有充分利用单片机做重复的事情的优点；并且使代码量增大，可读较差（重复的，看起来头晕）；注释少也致使可读性差!