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 导航:老古开发网首页→文章索引→索引第705页 →文章分类→技术文章→第14页→[12832MP3液晶显示屏的驱动程序]
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第733篇:12832MP3液晶显示屏的驱动程序 |
| 发布时间:2005年3月12日 点击次数:3731 |
| 来源: 作者: |
而其显示程序主要要注意写好其驱动程序,驱动程序的 有些命令的延时时间长短要注意。 另外发送数据或者命令时要按照其驱动IC的时序进行。 在这里给出一个ST7565作为驱动IC的液晶显示驱动程序。 ;*************************************************** ;NOTE:THIS PROGRAM USE internal resistance ! ;use all power setting(CONVERTER,REGULATOR,FOLLOWER) ;IN PCB,Ra,Rb is open ;*************************************************** C68 EQU p3.7 E EQU P3.1 RW EQU p3.0 A0 EQU P3.2 RES EQU P3.5 CS1 EQU P3.4 ;***************************************** ORG 0000H LJMP INIT INIT: ;SETB RES ;LCALL TT1 CLR RES LCALL TT1 SETB RES LCALL TT1 CLR CS1 SETB C68 ; SET TO 6800 SERIES MOV P1,#0A0H ;;;SET ADC=0;adc=0---normal;adc=1---reverse; LCALL WRCOM MOV P1,#0A6H ;;;SET REVERSE DISPLAY=normal(is 0) LCALL WRCOM LCALL T2 MOV P1,#0C8H ;SET SHL=1(c8h-reverse direction;c0h-normal direction) LCALL WRCOM LCALL T2 MOV P1,#0A2H ;SET BIAS=0(a2h-1/9bias;;a3h-1/7bias) LCALL WRCOM LCALL T2 MOV P1,#0F8H ;set BOOSTER RATIO LCALL WRCOM LCALL T2 MOV P1,#00H ;X234X(00h--x2,x3,x4;01h-x5;03h-x6) LCALL WRCOM LCALL T2 MOV P1,#22H LCALL WRCOM LCALL T2 MOV P1,#81H ;;SET REFERENCE VOLTAGE LCALL WRCOM LCALL T2 MOV P1,#15H ;SET SV5-SV0=63;;;volume--00h-3fh LCALL WRCOM LCALL T2 MOV P1,#0AcH ;SET STATIC INDICATOR MODE=ON LCALL WRCOM LCALL T2 MOV P1,#00H ;SET blinking off; LCALL WRCOM LCALL T2 MOV P1,#2CH ;SET POWER CONTROL VC=1 LCALL WRCOM LCALL T2 MOV P1,#2EH ;SET POWER CONTROL VC=1,VR=1,VF=0 LCALL WRCOM LCALL T2 MOV P1,#2FH ;SET POWER CONTROL VC=1,VR=1,VF=1 LCALL WRCOM LCALL T2 ;;;;;T2>50MS ;MOV P1,#40H ;;SET INITIAL DISPLAY LINE IS 0 ;LCALL WRCOM ;LCALL T2 MOV P1,#0AFH ;DISPLAY ON LCALL WRCOM MAIN: MOV A,#0FFH ;ENTIRE DIPLAY,EVERY DOT IS ON LCALL WR128 LCALL T4 loop1: JB P3.3,$ LCALL T4 JNB P3.3,$ MOV A,#55H LCALL WR128 LCALL T4 loop2: JB P3.3,$ LCALL T4 JNB P3.3,$ MOV A,#0AAH LCALL WR128 loop3: JB P3.3,$ LCALL T4 JNB P3.3,$ MOV R1,#0FFH MOV R2,#00H LCALL WR64 LCALL T4 loop4: JB P3.3,$ LCALL T4 JNB P3.3,$ MOV R1,#00H MOV R2,#0FFH LCALL WR64 LCALL T4 loop5: JB P3.3,$ LCALL T4 JNB P3.3,$ MOV R1,#55H MOV R2,#0AAH LCALL WR64 LCALL T4 loop6: JB P3.3,$ LCALL T4 JNB P3.3,$ MOV R1,#0AAH MOV R2,#55H LCALL WR64 loop7: JB P3.3,$ LCALL T4 JNB P3.3,$ MOV DPTR,#TAB1 LCALL FULLSCREEN LCALL T4 loop8: JB P3.3,$ LCALL T4 JNB P3.3,$ LJMP MAIN ;***********************END OF PROGRAM********************** ;*********************************************************** WR128: MOV R7,#04H MOV R6,#0B0H WDAT2: MOV P1,R6 LCALL WRCOM MOV R5,#80H MOV P1,#10H ;;SET COLUMN ADDRESS IS 0000H LCALL WRCOM MOV P1,#00H LCALL WRCOM WDAT1: MOV P1,A LCALL WRDAT DJNZ R5,WDAT1 INC R6 DJNZ R7,WDAT2 RET ;********************************************* WR64: MOV R7,#04H MOV R6,#0B0H WDAT22: MOV P1,R6 LCALL WRCOM MOV R5,#40H MOV P1,#10H ;;SET COLUMN ADDRESS IS 0000H LCALL WRCOM MOV P1,#00H LCALL WRCOM WDAT21: MOV P1,R1 LCALL WRDAT LCALL TT1 MOV P1,R2 LCALL WRDAT DJNZ R5,WDAT21 INC R6 DJNZ R7,WDAT22 RET ;**************WRITE ONE SCREEN************************** FULLSCREEN: MOV R7,#04H MOV R6,#0B0H ;set page address is 0000h WDAT3: MOV P1,R6 LCALL WRCOM MOV R5,#80H MOV P1,#10H ;;SET COLUMN ADDRESS IS 0000H LCALL WRCOM MOV P1,#00H LCALL WRCOM WDAT4: CLR A MOVC A,@A+DPTR ;CPL A MOV P1,A LCALL WRDAT INC DPTR DJNZ R5,WDAT4 INC R6 DJNZ R7,WDAT3 RET ;****************************************** WRCOM: LCALL TT1 CLR A0 CLR RW SETB E NOP NOP NOP CLR E RET ;******************************************* WRDAT: LCALL TT1 SETB A0 CLR RW SETB E NOP NOP NOP CLR E RET ;******************************************* TT1: MOV R4,#80H DJNZ R4,$ RET ;******************************************* T2: MOV R4,#01H;DELAY 0.26S T22: MOV R3,#030H T21: MOV R2,#0FFH DJNZ R2,$ DJNZ R3,T21 DJNZ R4,T22 RET ;****************************************** T3: MOV R4,#02H;DELAY 0.52S T32: MOV R3,#0FFH T31: MOV R2,#0FFH DJNZ R2,$ DJNZ R3,T31 DJNZ R4,T32 RET ;****************************************** T4: MOV R4,#01H;DELAY 1.56S T42: MOV 30H,#0FFH T41: MOV R2,#0FFH DJNZ R2,$ DJNZ 30H,T41 DJNZ R4,T42 RET ;********************************************************** TAB1: db 0ffh,001h,001h,001h,001h,001h,001h,001h,001h,001h db 041h,0c9h,099h,011h,031h,0b1h,0d1h,0d1h,091h,051h db 0d1h,0b1h,031h,001h,001h,001h,001h,001h,001h,001h db 001h,001h,001h,001h,001h,001h,001h,001h,001h,001h db 081h,081h,0f9h,0f9h,081h,0f9h,0f9h,001h,0f1h,0f1h db 001h,0f9h,0f9h,001h,001h,001h,001h,001h,001h,001h db 001h,001h,001h,001h,001h,001h,001h,001h,001h,001h db 001h,001h,001h,0f9h,0f9h,0a9h,0a9h,0a9h,0a9h,0f9h db 0f9h,001h,001h,001h,001h,001h,001h,001h,001h,001h db 001h,001h,001h,001h,001h,001h,001h,001h,001h,001h db 081h,0c1h,0e1h,0f9h,099h,081h,0f9h,0f9h,061h,021h db 031h,091h,081h,001h,001h,001h,001h,001h,001h,001h db 001h,001h,001h,001h,001h,001h,001h,0ffh db 0ffh,000h,000h,000h,000h,000h,000h,000h,000h,000h db 008h,07ch,07eh,022h,022h,032h,01ah,07fh,07fh,01ah db 032h,022h,022h,000h,000h,000h,000h,000h,000h,000h db 000h,000h,000h,000h,000h,000h,000h,000h,000h,000h db 010h,030h,03fh,05fh,068h,03fh,01fh,000h,01fh,01fh db 000h,07fh,07fh,000h,000h,000h,000h,000h,000h,000h db 000h,000h,000h,000h,000h,000h,000h,000h,000h,000h db 000h,07eh,07eh,02ah,02ah,07eh,07eh,07eh,07eh,02ah db 02ah,07eh,07eh,000h,000h,000h,000h,000h,000h,000h db 000h,000h,000h,000h,000h,000h,000h,000h,000h,000h db 008h,008h,00bh,00bh,008h,07ch,07dh,00bh,00ah,00ah db 00ah,00bh,00bh,000h,000h,000h,000h,000h,000h,000h db 000h,000h,000h,000h,000h,000h,000h,0ffh db 0ffh,000h,000h,000h,000h,000h,030h,078h,0c8h,088h db 098h,018h,000h,008h,0f8h,0f8h,088h,088h,0f8h,0f8h db 008h,008h,0f8h,0f8h,088h,0c8h,0d8h,018h,000h,008h db 0f8h,0f8h,0f8h,0c8h,0f8h,0f8h,008h,000h,018h,018h db 0c8h,0f8h,038h,008h,000h,008h,0f8h,0f8h,088h,088h db 0f8h,0f8h,008h,008h,0f8h,0f8h,088h,0c8h,0d8h,018h db 000h,008h,0f8h,0f8h,0f8h,0c8h,0f8h,0f8h,008h,000h db 008h,008h,0f8h,0f8h,008h,008h,000h,000h,008h,008h db 0f8h,0f8h,008h,008h,000h,008h,0f8h,0f8h,0f8h,0c8h db 0f8h,0f8h,008h,0e0h,0f0h,018h,008h,018h,018h,000h db 000h,008h,0f8h,0f8h,088h,088h,0f8h,0f8h,008h,008h db 0f8h,0f8h,008h,008h,0f8h,0f8h,008h,000h,000h,0e0h db 0f8h,0f8h,0e0h,000h,000h,000h,000h,0ffh db 0ffh,080h,080h,080h,080h,080h,08ch,08ch,088h,088h db 08fh,087h,080h,088h,08fh,08fh,088h,088h,08fh,08fh db 088h,088h,08fh,08fh,088h,089h,08dh,08ch,080h,088h db 08fh,08fh,089h,087h,08fh,08fh,080h,080h,088h,08eh db 08fh,089h,08ch,08ch,080h,088h,08fh,08fh,088h,088h db 08fh,08fh,088h,088h,08fh,08fh,088h,089h,08dh,08ch db 080h,088h,08fh,08fh,089h,087h,08fh,08fh,080h,098h db 098h,090h,09fh,08fh,080h,080h,080h,080h,088h,088h db 08fh,08fh,088h,088h,080h,088h,08fh,08fh,089h,087h db 08fh,08fh,080h,083h,087h,08ch,089h,08fh,087h,081h db 080h,088h,08fh,08fh,088h,088h,08fh,08fh,088h,080h db 087h,08fh,088h,088h,08fh,087h,080h,088h,08eh,08fh db 089h,089h,08fh,08eh,088h,080h,080h,0ffh END |
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