ST7565 串行驱动方式

* 很多程序都没有用，但是参照这些，起码可以驱动起来了。对刚拿到片子的或点不亮的希望有点帮助吧。 *

www.ouravr.com/bbs/bbs_content.jsp?bbs_sn=1389717&bbs_page_no=1&search_mode=3&search_text=friendljy&bbs_id=9999 *

* 会员ql-dz.com学习领会和修改部分内容 2008年9月17日

*

* 我是菜鸟,很多地方都似懂非懂,有的地方根本不明白.敬请原作者friendljy和大家给予指点,特别是打??的地方......

/**************************预处理*************************/ #include

#include

//=========================LCD接口引脚定义====================== sbit LCDA0=P2^5; sbit LCDSK=P2^6;

sbit LCDSI=P2^7; sbit LCDRS=P2^4;

//=========================函数声明============================= void

//初始化函数

LCDInit();

void LCDWriteByte(char dat,char command); //一为待写内容,二为命令/数据选择(0命令,1数据)

void LCDShiftWrite(char dat); //逐位写一个字节

void LCDSetXY(char x, char y); //行列坐标设置 void LCDcls(char); //清屏函数,全屏写入某个字节value

void menushow(char line,char num,char state); //??

void gbshow(char x,char y,unsigned char *p); //??

void asc816show(char x,char y,unsigned char *p); //8x16点阵ASCII字符显示 void asc1632show(char x,char y,unsigned char *p); //16x32点阵ASCII字符显示 void asc1632bottom(char x,char state); //???

void delayms(unsigned char ms); //延时函数

//***************************数组列表*******************************

extern unsigned char code hzcode[][128]; //??

extern unsigned char code gbcode[][32]; //?? extern unsigned char code asc816code[][16]; //?? extern unsigned char code asc1832code[][64]; //??

extern unsigned char code arrow[]; //??

//===========================主程序================================= void main(void)

{ //显示示例显示内容,????如何让其显示特定的字符串和需要的随机内容????

LCDInit(); while(1) {

asc816show(1,3,30); LCDSetXY(0x00,0x00); LCDWriteByte(0x00,1);

LCDSetXY(0x01,0x00); LCDWriteByte(0x3C,1);

LCDSetXY(0x02,0x00); LCDWriteByte(0x7C,1);

LCDSetXY(0x03,0x00); LCDWriteByte(0xC0,1);

LCDSetXY(0x04,0x00); LCDWriteByte(0xC0,1);

LCDSetXY(0x05,0x00); LCDWriteByte(0x7C,1);

LCDSetXY(0x06,0x00); LCDWriteByte(0x3C,1);

LCDSetXY(0x07,0x00); LCDWriteByte(0x00,1);

LCDSetXY(0x00,0x01); LCDWriteByte(0x00,1);

LCDSetXY(0x01,0x01); LCDWriteByte(0x00,1);

LCDSetXY(0x02,0x01); LCDWriteByte(0x08,1);

LCDSetXY(0x03,0x01); LCDWriteByte(0x0f,1);

LCDSetXY(0x04,0x01); LCDWriteByte(0x0f,1);

LCDSetXY(0x05,0x01); LCDWriteByte(0x08,1);

LCDSetXY(0x06,0x01); LCDWriteByte(0x00,1);

LCDSetXY(0x07,0x01); LCDWriteByte(0x00,1);

}

}

//========================

液晶================================= void LCDInit()

{

LCDRS=0; delayms(100);

LCDRS = 1; delayms(100);

LCDWriteByte(0xe2,0); 为0.)===

delayms(100);

LCDWriteByte(0x84,0); LCDWriteByte(0x07,0);

LCDWriteByte(0x82,0); LCDWriteByte(0x03,0);

LCDWriteByte(0x85,0); 显示模块初始化

//?? //?? //复位(第二个数原为1疑有误,个人改 //?? //?? //?? //?? //??

LCDWriteByte(0x0a,0); //??

LCDWriteByte(0xa1,0); //0xa0为Segment正向,0xa1 为Segment反向(0xa0-0xa1为ADC方向选择)

LCDWriteByte(0xc0,0); //0xc0正向扫描,0xc8反射扫描

LCDWriteByte(0xa6,0); //0xa6正向显示,0xa7反向显示

LCDWriteByte(0x26,0); 设置

LCDWriteByte(0x81,0); LCDWriteByte(0x0f,0);

LCDWriteByte(0x2f,0); 随电路均开(0x28-0x2f为设置上电控制模式)

LCDWriteByte(0xa4,0);

LCDcls(0); 全屏写入0

LCDWriteByte(0xaf,0); }

//========================

写

一

个

据)=============================

void LCDWriteByte(char dat,char command) {

// LCDCS = 0; 只使用一片CS,已将其直接接地.

if(command == 0) {

LCDA0 = 0; 写命令

LCDShiftWrite(dat); }

else

{

LCDA0 = 1; 写数据

LCDShiftWrite(dat); }

//0x20-0x27为V5电压内部电阻调整 //电量设置模式

//0x01-0x3f电量寄存器设置模式 //0x2f升压电路,电压管理电路,电压跟 //0xa4正常显示,0xa5全屏点亮 //屏上的点都不点亮, //0xaf显示器开,0xae显示器关 字

节

(

命

令

或

显

示

数

//CS=0.注:因 //A0=0,为 //A0=1,为 // LCDCS = 1; //CS=1.注:因只使用一片CS,已将其直接接地. }

//===========================void LCDShiftWrite(char dat)

{

unsigned char i; //定义局部逐位(串行)写完一个字节

================================

变量

unsigned char Series,Temp;

LCDSK = 0; Series = dat; for(i=0; i<8; i++) {

LCDSK = 0; Temp=Series & 0x80; if(Temp) 则使SI=1.如果Temp+0,则使SI=0 {

LCDSI = 1; } else {

LCDSI = 0; }

LCDSK = 1; Series = Series << 1; } }

//定义局部变量 //SCL=0 //SCL=0 //屏蔽低7位

//如果Temp=1, //SI=1 //SI=0 //SCL=1上升沿写 //左移1位