RA8835显示程序

1、基基于于C8051F120C8051F120的的RA8835(SED1335)RA8835(SED1335)的的320240320240液液晶晶屏屏例例程程集集( (我我自自编编在在用用的的) )分类： 我写好的常用的C51程序 2008-01-21 19:06/*= RA8835 320X240液晶屏操作程序区=*/*- Reset_RA8835()复位RA8835LCM-*/voidReset_RA8835()EA=0;SFRPAGE_RAM=SFRPAGE;SFRPAGE=15;/RST_RA8835=0;delay_ms(500);RST_RA8835=1;/SFRPAGE=0;SFR

2、PAGE=SFRPAGE_RAM;delay_ms(200);EA=1;/*- rdsta_RA8835()读RA8835当前状态-*/voidrdsta_RA8835()ucharcn;cn=3;SFRPAGE_RAM=SFRPAGE;SFRPAGE=15;DATA_BUS=0 xff;A0_RA8835=0;Bit8_6=1;Count_CHERR=0;Error_flag=0;while(cn-)while(Bit8_6)delay_io();RD_RA8835=0;delay_io();Bit8=DATA_BUS;RD_RA8835=1;Count_CHERR+;if(Count_CH

3、ERR=250)Error_flag=1;return;/SFRPAGE=SFRPAGE_RAM;/*- wrcommand_RA8835()向RA8835LCM写入一个指令-*/voidwrcommand_RA8835(ucharcommand) /片选SFRPAGE_RAM=SFRPAGE;SFRPAGE=15;CS_RA8835=0;/ rdsta_RA8835(); /读状态，等空闲/A0_RA8835=1;DATA_BUS=command;delay_io();WR_RA8835=0;delay_io();WR_RA8835=1; /非片选CS_RA8835=1;SFRPAGE=SF

4、RPAGE_RAM;/*- wrdata_RA8835(uchar datax)向RA8835LCM写入一个数据-*/voidwrdata_RA8835(uchardatax) /片选SFRPAGE_RAM=SFRPAGE;SFRPAGE=15;CS_RA8835=0;/ rdsta_RA8835(); /读状态，等空闲/A0_RA8835=0;DATA_BUS=datax;delay_io();WR_RA8835=0;delay_io();WR_RA8835=1; /非片选CS_RA8835=1;SFRPAGE=SFRPAGE_RAM;/*- SYSTEMSET_RA8835()LCM系统设

5、置-*/voidSYSTEMSET_RA8835()ET0=0;ES0=0;/ wrcommand_RA8835(0 x40); /命令40H参数设置，#0101H为命令口地址 /p1 写wrdata_RA8835(0 x30);/0 x30ok/p2 wrdata_RA8835(0 x87); /0 x87 设置光标宽度为8/p3wrdata_RA8835(0 x87);/0 x07ok /p4 写C/R wrdata_RA8835(40); /0 x27,设置LCD每行需要的字节数，每行320个点，行数为320/8-1=39 /p5 写TC/R wrdata_RA8835(70); /0

6、x42,设置液晶的扫描频率约为70HZ /p6 写L/F wrdata_RA8835(240); /0 xf0,设置LCD的行数为239 /p7 写APLwrdata_RA8835(40);/0 x28 /p8 写APHwrdata_RA8835(0 x00);/0 x00 /非片选/CS_RA8835=1;ET0=0;ES0=1;/*- DISPLAY_ON()显示屏打开-*/voidDISPLAY_ON(ucharx)ET0=0;ES0=0; /片选SFRPAGE_RAM=SFRPAGE;SFRPAGE=15;/CS_RA8835=0;wrcommand_RA8835(0 x59);/wr

7、data_RA8835(x); /非片选CS_RA8835=1;SFRPAGE=SFRPAGE_RAM;/ET0=1;ES0=1;/*- DISPLAY_OFF()显示屏关闭-*/voidDISPLAY_OFF()CS_RA8835=0;/wrcommand_RA8835(0 x58);/wrdata_RA8835(0 x55);/CS_RA8835=1;/*- SCROLL_RA8835()显示区及行设置-*/voidSCROLL_RA8835()/wrcommand_RA8835(0 x44);/p1SAD1L wrdata_RA8835(0 x00); /第1显示区首地址低8位/p2SA

8、D1H wrdata_RA8835(0 x00); /第1显示区首地址高8位/p3SL1 wrdata_RA8835(240); /第2显示区的点行数范围/p4SAD2L wrdata_RA8835(0 x00); /第2显示区首地址低8位/p5SAD2H wrdata_RA8835(0 x30); /第2显示区首地址高8位/p6SL2 wrdata_RA8835(240); /第2显示区的点行数范围/p7SAD3L wrdata_RA8835(0 x00); /第3显示区首地址低8位/p8SAD3H wrdata_RA8835(0 x60); /第3显示区首地址高8位/p9SAD4L wrd

9、ata_RA8835(0 x00); /第4显示区首地址低8位/p10SAD4H wrdata_RA8835(0 x90); /第4显示区首地址高8位/SFRPAGE_RAM=SFRPAGE;SFRPAGE=15;CS_RA8835=1;SFRPAGE=SFRPAGE_RAM;/*-CSRFORM_RA8835() 说明：设置光标显示方式及其形状，2个参数-*/voidCSRFORM_RA8835() /写指令0 x5dwrcommand_RA8835(0 x5d); /p1 写CRX wrdata_RA8835(0 x01); /光标的水平点列数，07取值 /p2 写CRY wrdata_R

10、A8835(0 x08); /光标的垂直点列值，1-F取值/*-CSPDIR_RA8835() 说明：规定光标地址指针自动移动的方向。-*/voidCSPDIR_RA8835()wrcommand_RA8835(0 x4f);/4c=,4d=,4e,4fV/*- OYLAY_RA8835()显示区及行设置-*/voidOYLAY_RA8835()ucharx;/wrcommand_RA8835(0 x5b); /p1 显示区属性/Bit8=0; /Bit8_7=0; /NC，默认设为0 /Bit8_6=0; /NC，默认设为0 /Bit8_5=0; /NC，默认设为0 /Bit8_4=0; /

11、OV:0(二重合成),1(三重合成) /Bit8_3=1; /DM2第3显示区属性:0(文本),1(图型) /Bit8_2=1; /DM1第1显示区属性:0(文本),1(图型) /Bit8_1=1; /MX1：00(或),01(异或),10(与) /Bit8_0=1; /MX0: 11(优先叠加)/x=Bit8;x=0 x0f;wrdata_RA8835(x);/*-CGRAMADR_RA8835() 说明:设置CGRAM的起始地址：SAG-*/voidCGRAMADR_RA8835(uintaddress)BIT16=address;/wrcommand_RA8835(0 x5c); /p1

12、 写SAGLwrdata_RA8835(BIT16_0); /p2 写SAGHwrdata_RA8835(BIT16_1);/*- HDOTSET_RA8835()显示区及行设置-*/voidHDOTSET_RA8835()wrcommand_RA8835(0 x5a);/p1Dwrdata_RA8835(0 x00);/*- CSRW_RA8835()显示区及行设置-*/voidCSRW_RA8835(uintaddress)BIT16=address;/wrcommand_RA8835(0 x46); /p1 写CSRLwrdata_RA8835(BIT16_0); /p2 写CSRHwr

13、data_RA8835(BIT16_1);/*- CSRR_RA8835()读出光标地址-*/voidCSRR_RA8835()/wrcommand_RA8835(0 x47); /p1 读CSRLrdcommand_RA8835(); /p2 读CSRHrdcommand_RA8835();/*- MWRTTE_RA8835()MPU允许连续把显示数据写入显示区内-*/voidMWRTTE_RA8835()wrcommand_RA8835(0 x42);/*-MREAD_RA8835() 光标地址址确定单元的数据送入输出缓冲区给MCU读-*/voidMREAD_RA8835()wrcomma

14、nd_RA8835(0 x43);/*-SET_RA8835() 设置RA8835初始化-*/voidSETINT_RA8835()ET0=0;ES0=0;/SYSTEMSET_RA8835();SCROLL_RA8835();OYLAY_RA8835(); CSPDIR_RA8835(); /4fH光标自动下移CGRAMADR_RA8835(0);HDOTSET_RA8835(); /非片选SFRPAGE_RAM=SFRPAGE;SFRPAGE=15;CS_RA8835=1;SFRPAGE=SFRPAGE_RAM;/ET0=1;ES0=1;/*-CLR_SRAM_RA8835(M) 清屏RA

15、8835-*/voidCLR_SRAM_RA8835(ucharm)uinti;ET0=0;ES0=0;i=0; if(fxlcm_flag=1)m=m; /判断是否要反显(阴/阳)for(i=0;i=0 x8000;i+)CSRW_RA8835(i);MWRTTE_RA8835();wrdata_RA8835(m); reset_wtg(); /看门狗复位ET0=1;ES0=1;/*-CLR_SCREEN_RA8835() 清屏本显示屏RA8835-*/voidCLR_SCREEN_RA8835(ucharm)uinti;ET0=0;ES0=0;/SFRPAGE_RAM=SFRPAGE;SF

16、RPAGE=15;/i=0; if(fxlcm_flag=1)m=m; /判断是否要反显(阴/阳)for(i=0;i=0 x3000;i+)CS_RA8835=0;CSRW_RA8835(i);MWRTTE_RA8835();wrdata_RA8835(m);CS_RA8835=1; reset_wtg(); /看门狗复位SFRPAGE=SFRPAGE_RAM;ET0=1;ES0=1;/*-wr_oneword_lcm(ucharword,uintaddr) 向RA8835LCM发送一个字节字模-*/voidwr_oneword_lcm(ucharword,uintaddr) /片选CSRW_

17、RA8835(addr);MWRTTE_RA8835();wrdata_RA8835(word); /非片选SFRPAGE_RAM=SFRPAGE;SFRPAGE=15;CS_RA8835=1;SFRPAGE=SFRPAGE_RAM; reset_wtg(); /看门狗复位/*-STRING8X16(flag,xaddr,yaddr)8X16字符- 入口: 格式（字模码，X地址，Y地址） 字模形式：再从上到下 字节排列：左高右低。即D7-D0说明:此程序是基于C8051F120外挂的28C256作字模存储器.使用外部XDATA方式访问-*/voidSTRING8X16(uintword16,ucharxaddr,yaddr)uintaddress;ucharx,y;ET0=0;ES0=0; address=yaddr*40+xaddr; /LCMRAM的地址赋起始执值 addr_28c256=0 x0000+word16*16; /28C256地址赋起始值/ for(x=0;x=15;x+) /从上