謝謝樓上朋友的範例,不過此範例是否為8bits interface.
最近問了原廠的人,原來pin 接腳有一點不同,要注意 !!
原則上,在簡單模式下,power on 就可以正常運作,供大家參考!!

一个用51汇编写的程序供参考。


;******************OCM4x8C并口******************
RS EQU P3.0
RW EQU P3.1
E EQU P3.2
PSB EQU P3.3
RST EQU P3.4

LCD_X EQU 30H
LCD_Y EQU 31H
COUNT EQU 32H
COUNT1 EQU 33H
COUNT2 EQU 34H
COUNT3 EQU 35H
LCD_DATA EQU 36H
LCD_DATA1 EQU 37H
LCD_DATA2 EQU 38H
STORE EQU 39H
;***********************************************
ORG 0000H
LJMP MAIN
ORG 0100H
MAIN: NOP
NOP
MOV SP,#5FH
SETB RST
NOP
SETB PSB
;********************初始化**********************
LGS0: MOV A,#34H ;34H--扩充指令操作
LCALL SEND_I
MOV A,#30H ;30H--基本指令操作
LCALL SEND_I
MOV A,#01H ;清除显示
LCALL SEND_I
MOV A,#06H ;指定在资料写入或读取时，光标的移动方向
LCALL SEND_I
MOV A,#0CH ;开显示,关光标,不闪烁
LCALL SEND_I
;***********************************************
LGS1: MOV DPTR,#TAB1 ;显示汉字和字符
MOV COUNT,#40H
MOV A,#80H
LCALL SEND_I
LGS11: CLR A
MOVC A,@A+DPTR
LCALL SEND_D
INC DPTR
DJNZ COUNT,LGS11
LCALL DELAY3
;$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
LGS2: MOV A,#01H
LCALL SEND_I

MOV LCD_DATA1,#0CCH ;显示点阵
MOV LCD_DATA2,#0CCH
LCALL LAT_DISP
LCALL DELAY3
;$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
LGS3: MOV A,#34H
LCALL SEND_I
MOV A,#30H
LCALL SEND_I

MOV DPTR,#TAB3 ;显示汉字和字符
MOV COUNT,#40H
MOV A,#80H
LCALL SEND_I
LGS31: CLR A
MOVC A,@A+DPTR
LCALL SEND_D
INC DPTR
DJNZ COUNT,LGS31
LCALL DELAY3
;$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
LGS4: MOV A,#01H
LCALL SEND_I

MOV LCD_DATA1,#0FFH ;显示点阵
MOV LCD_DATA2,#00H
LCALL LAT_DISP
LCALL DELAY3
;$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
LGS5: MOV DPTR,#TAB5 ;显示图形
LCALL PHO_DISP
LCALL DELAY3
;$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
MOV A,#34H
LCALL SEND_I
MOV A,#30H
LCALL SEND_I
LJMP LGS1
;***********************************************
PHO_DISP: MOV COUNT3,#02H ;全屏显示图形子程序
MOV LCD_X,#80H
PHO_DISP1: MOV LCD_Y,#80H
MOV COUNT2,#20H
PHO_DISP2: MOV COUNT1,#10H
LCALL WR_ZB
PHO_DISP3: CLR A
MOVC A,@A+DPTR
LCALL SEND_D
INC DPTR
DJNZ COUNT1,PHO_DISP3
INC LCD_Y
DJNZ COUNT2,PHO_DISP2
MOV LCD_X,#88H
DJNZ COUNT3,PHO_DISP1

MOV A,#36H
LCALL SEND_I
MOV A,#30H
LCALL SEND_I
RET
;$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
CLRRAM: MOV LCD_DATA1,#00H ;GDRAM写0子程序
MOV LCD_DATA2,#00H
LCALL LAT_DISP
RET
;$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
LAT_DISP: MOV COUNT3,#02H ;显示点阵子程序
MOV LCD_X,#80H
LAT_DISP1: MOV LCD_Y,#80H
CLR F0
MOV COUNT2,#20H
LAT_DISP2: MOV COUNT1,#10H
LCALL WR_ZB
LAT_DISP3: JB F0,LAT_DISP32
MOV LCD_DATA,LCD_DATA1
AJMP LAT_DISP31
LAT_DISP32: MOV LCD_DATA,LCD_DATA2
LAT_DISP31: MOV A,LCD_DATA
LCALL SEND_D
DJNZ COUNT1,LAT_DISP31
INC LCD_Y
CPL F0
DJNZ COUNT2,LAT_DISP2
MOV LCD_X,#88H
DJNZ COUNT3,LAT_DISP1

MOV A,#36H
LCALL SEND_I
MOV A,#30H
LCALL SEND_I
RET
;$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
WR_ZB: MOV A,#34H
LCALL SEND_I
MOV A,LCD_Y
LCALL SEND_I
MOV A,LCD_X
LCALL SEND_I
MOV A,#30H
LCALL SEND_I
RET
;***********************************************
SEND_D: LCALL CHK_BUSY ;写数据子程序
SETB RS
CLR RW
MOV P1,A
SETB E
NOP
NOP
CLR E
RET

SEND_I: LCALL CHK_BUSY ;写指令子程序
CLR RS
CLR RW
MOV P1,A
SETB E
NOP
NOP
CLR E
RET

READ_D: LCALL CHK_BUSY ;读数据子程序
SETB RS
SETB RW
SETB E
NOP
MOV A,P1
CLR E
MOV STORE,A
RET

CHK_BUSY: MOV P1,#0FFH ;测忙碌子程序
CLR RS
SETB RW
SETB E
JB P1.7,$
CLR E
RET
;***********************************************
DELAY3: MOV R5,#16H
DEL31: MOV R6,#0FFH
DEL32: MOV R7,#0FFH
DEL33: DJNZ R7,DEL33
DJNZ R6,DEL32
DJNZ R5,DEL31
RET

DELAY2: MOV R6,#0CH
DEL21: MOV R7,#18H
DEL22: DJNZ R7,DEL22
DJNZ R6,DEL21
RET

DELAY1: MOV R6,#06H
DEL11: MOV R7,#08H
DEL12: DJNZ R7,DEL12
DJNZ R6,DEL11
RET
;***********************************************
TAB1: DB '金鹏科技有限公司'
DB 'GOLDEN PALM TECH'
DB '奥可拉液'
DB 0BEH,0A7H ;晶
DB '显示器'
DB 'TEL:0758-2263858'

TAB3: DB '模块内置二级字库'
DB '~!@#$%^&*()_+|{}'
DB '使用更方便更灵活'
DB 0A2H,0D9H,0A2H,0DAH,0A2H,0DBH,0A2H,0DCH,0A2H,0DDH,0A2H,0DEH,0A2H,0DFH,0A2H,0E0H

TAB5:
DB 00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
DB 00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
DB 00,00,00,00,01H,80H,00,60H,04H,00,38H,00,00,00,00,00
DB 00,00,00,00,03H,0E0H,30H,78H,0FH,00,78H,00,00,00,00,00
DB 00,00,00,00,06H,0A0H,38H,0F8H,0FH,00,78H,0FFH,0E0H,00,00,00
DB 00,00,00,00,1DH,20H,3CH,18H,0EH,00,60H,80H,10H,00,00,00
DB 00,00,00,00,19H,30H,07H,00,08H,00,40H,80H,18H,00,00,00
DB 00,00,00,00,30H,10H,07H,0FH,0F8H,00,00,40H,0CH,00,00,00
DB 00,00,00,00,60H,0F0H,00,7FH,8CH,00,00,40H,03H,00,00,00
DB 00,00,00,00,0C1H,80,01H,0C0H,0F7H,0F0H,00,40H,01H,80H,00,00
DB 00,00,00,01H,86H,03H,0FFH,00,10H,1CH,00,0C0H,00,0C0H,00,00
DB 00,00,00,01H,04H,3FH,0FFH,0C0H,10H,01H,0C0H,0C0H,40H,70H,0FH,00
DB 00,00,00,01H,0FH,0FFH,0FFH,0F3H,0DFH,0F8H,70H,80H,60H,1EH,7FH,00
DB 00,00,3CH,01H,8FH,0FFH,0FFH,0FFH,0C0H,02H,18H,80H,40H,02H,00,00
DB 00,00,1FH,00,0FFH,0FFH,0FFH,0FFH,38H,03H,86H,80H,0C0H,01H,00,00
DB 00,00,03H,0E0H,0FFH,0FFH,0FFH,0FFH,0F8H,00,83H,00,0C0H,01H,80H,00
DB 00,00,00,00,3FH,0FFH,0FFH,0FFH,0E0H,00,83H,03H,80H,00,80H,00
DB 00,0FH,0F0H,00H,7FH,0FFH,0FFH,0FFH,0F8H,00,83H,07H,02H,00,80,00
DB 00,03H,0E0H,00,7FH,0F0H,07H,0FFH,0FCH,01H,83H,0FEH,06H,03H,80H,00
DB 00,00,00,00,7FH,0F8H,01H,0FFH,0FEH,01H,02H,06H,0EH,0FH,80H,00
DB 00,00,00,00,7FH,0FCH,00H,7FH,0FFH,0FFH,0EH,03H,1CH,0EH,00,00
DB 00,00,00,00,7FH,0FFH,00,7FH,0FFH,0F8H,00,01H,0E8H,0C6H,00,00
DB 00,03H,0FFH,0C0H,7FH,0FFH,0C0H,3FH,0FFH,0FCH,00,00H,63H,83H,00,00
DB 00,01H,0FEH,00,3FH,0FFH,0F8H,3FH,0FFH,0FFH,80H,00,3EH,03H,00,00
DB 00,00,00,00,1FH,0FFH,0FEH,1FH,0FFH,0FFH,0C0H,00,1CH,01H,80H,00
DB 00,00,00,00,1FH,0FFH,0FFH,0FFH,0FFH,0FFH,0F0H,00,0CH,00,80H,00
DB 00,00,00,00,0FH,0FFH,0FFH,0FFH,0FFH,0FFH,0F0H,00,07H,0F0H,80H,00
DB 00,00,00,00,0FH,0FFH,0FFH,0FFH,0FFH,0FFH,0FCH,00,03H,80H,80H,0FEH
DB 00,00,00,00,18H,0FFH,0FFH,0FFH,0FFH,0FFH,0FCH,00,1FH,0C0H,83H,82H
DB 00,00,00,00,33H,0BFH,0FFH,0FFH,0FFH,0FFH,0C4H,00,41H,0FFH,0FEH,06H
DB 00,00,00,00,0E6H,0FH,0FFH,0FFH,0FFH,0FFH,0FH,00,70H,00,00,3CH
DB 00,00,00,01H,8CH,0DH,0FFH,0FFH,0FFH,0F8H,09H,80H,1FH,0E0H,00,3CH
DB 00,00,00,03H,1FH,8EH,00,0FFH,0FFH,80H,19H,80H,00,3FH,0F0H,04H
DB 00,00,00,0CH,77H,0F3H,0E0H,07H,0FFH,00,71H,80H,00,33H,18H,04H
DB 00,00,00,39H,0C7H,0E0H,38H,00,00,00,0C1H,80H,00,22H,04H,0CH
DB 00,00,00,67H,07H,0C0H,0FH,00,00,07H,81H,80H,00,46H,03H,0F8H
DB 00,00,03H,0FCH,07H,0FCH,00,0E0H,00,0CH,01H,80H,00,1CH,00,00
DB 00,0FCH,07H,0E0H,03H,0FFH,00,1FH,0FFH,0F0H,01H,80H,00,30H,00,00
DB 3BH,0FFH,0FFH,80H,00,0FFH,0C0H,00,00,00,01H,80H,00,60H,00,00
DB 7FH,0FFH,0F8H,0F8H,00,7FH,0F8H,00,00,00,03H,0C0H,00,60H,00,00
DB 7FH,0FFH,0FEH,0EH,00,3FH,0FEH,00,00,00,0FH,0C0H,00,0C0H,00,00
DB 3FH,0FFH,0F9H,0FCH,0FFH,0CFH,0FFH,80,00,00,1FH,0C0H,00,80H,00,00
DB 07H,0FFH,0C0H,7BH,0E0H,7FH,0FFH,0E0H,00,00,3FH,00,03H,87H,0FFH,0E0H
DB 00,00,01H,0C0H,3FH,83H,0FFH,0FEH,00H,03H,0FEH,00,0EH,04H,7FH,0E0H
DB 00,00,07H,00,00,7EH,0FH,0FFH,0FFH,0FFH,0FCH,00,38H,00,7FH,00
DB 00,00,1FH,00,00,7FH,0FEH,7FH,0FFH,0FFH,0F8H,00,60H,00,00,00
DB 00,00,3FH,0E0H,07H,0FFH,83H,0FFH,0DFH,0FFH,0C0H,01H,80H,00,00,00
DB 00,00,3FH,0FCH,7CH,7FH,0C0H,00,3FH,0FDH,00,03H,00,00,00,00
DB 00,00,7FH,0FFH,80H,7FH,0E0H,00,00,06H,03H,0FEH,00,00,00,00
DB 00,00,0FFH,0FFH,80H,7FH,0E0H,00,03H,0E3H,07H,0E0H,00,00,00,00
DB 00,00,0FFH,0FEH,00,3FH,0E0H,00,3EH,3FH,8CH,00,00,00,00,00
DB 00,00,0FFH,0FEH,00,08H,60H,00,0E0H,0BH,0FFH,80H,00,00,00,00
DB 00,00,7FH,0FFH,00,38H,60H,01H,80H,7FH,0F8H,0FFH,00,00,00,00
DB 00,00,7FH,0FFH,0FFH,0C0H,0E0H,00,0F0H,0C0H,1EH,00,0C0H,00,00,00
DB 00,00,30H,00,0FH,0E0H,0C0H,00,67H,00,03H,0C6H,60H,00,00,00
DB 00,00,18H,00,0FH,0FFH,80H,00,3CH,00,00,23H,30H,00,00,00
DB 00,00,0CH,00,0FH,0FFH,00,00,00,00,00,19H,10H,00,00,00
DB 00,00,03H,0C0H,0FH,0F8H,00,00,00,00,00,08H,10H,00,00,00
DB 00,00,00,7FH,0FFH,0E0H,00,00,00,00,00,07H,0F0H,00,00,00
DB 00,00,00,0FH,0FCH,00,00,00,00,00,00,00,00,00,00,00
DB 00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
DB 00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
DB 00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
DB 00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

END

我想使用PIC16F877,4bit interface 去 initial 中文 LCD (128*28dots,ST7920),但都未成功(有點糗). 那位人兄可否指點一下,那兒可找到範例程式,參考學習一下.(C,assemby...皆可)感激不盡!謝謝!!