关于cog 12864 ST7565驱动液晶的问题我崩溃了！

coolsir · 发表于 2011-7-8 19:04:23

潜水多年  从中学到不少东西，也本想做一些东西拿来与大家分享可惜因为工作，及自己能力问题，也迟迟没做出来一个自己能看顺眼的东西。更别说在这里穿两条裤子了，本想卧薪尝胆潜个七八年，然后再来个一鸣惊人，自己也至少有面子MARK MARK 几下，但可惜这次因为一个普通的12864 的问题我沉不住了，我迫不及待的要加入我们这个家庭了，突然对自己的人品感到疑惑了，学到东西的时候没见自己发布过多少东西，现在有问题到浮出来了、哎。。。。。。。
这次还是坚挺一下  同志们我来了！！

(原文件名:LCD12864.jpg)

屏幕就是在taobao上面买的这一款，好坏到先不说了，不过体积到时不小
以下是店里面的描述

控制器ST7565P资料下载：
http://www.lcdmk.com/tbpic/ST7565P.pdf

ST7565P应用笔记下载：
http://www.lcdmk.com/tbpic/ST7565.pdf

电容推荐接法，电容都可以用1uF，Ra、Rb根据显示效果调节：

引脚定义，排线朝下面对屏最右边为1脚：

1  NC
2  CS2
3  RESET
4  RS
5  RW
6  E
7  DB0
8  DB1
9  DB2
10 DB3
11 DB4
12 DB5
13 DB6
14 DB7
15 VDD
16 VSS
17 VOUT C4+
18 C3+
19 C1-
20 C1+
21 C2+
22 C2-
23 V1
24 V2
25 V3
26 V4
27 V0
28 VR
29 NC
30 NC
演示程序：
#include
#include
#include          //1100
#define VC_ON 0x2C    //1010
#define VR_ON 0x2A
#define VF_ON 0x29    //1001
#define NOP _nop_();_nop_();_nop_();_nop_()


#define data P0

sbit CS    =  P2^7;
sbit RES =  P2^6;
sbit RS    =  P2^5;
sbit RW    =  P2^4;
sbit Read =  P2^3;

/******************************delay time***********************************/
void delay_ms(unsigned int ms)
{
unsigned int n ;
while(ms--)
   {
   n  =  86;
   while(n--);
   }
}

/****************************reset IC for start****************************/
void LCD_Reset()
{
IE  =  0x00;
RES =  0;
delay_ms(50);
RES =  1;
delay_ms(50);
}

/*******************************write data to IC**************************/
void w_dat(unsigned char dat)
{
data =  dat;
NOP;
RS =  1;
RW =  0;
Read =  1;
NOP;
CS =  1;
_nop_();
CS =  0;
}

/******************************write Command to IC***********************/
void w_cmd(unsigned char cmd)
{
data =  cmd;
NOP;
RS =  0;
RW =  0;
Read =  1;
NOP;
CS =  1;
_nop_();
CS =  0;
}

/***************************display picture *****************************/
void Display(unsigned char *p)
{
unsigned char page,column;
for(page=0xB7;page>=0xB0;page--)
{
   w_cmd(page);  //set page address
   w_cmd(0x10);  //set Column address MSB
   w_cmd(0x00);  //set column address LSB
   for(column=0;column<128;column++)
      {
      w_dat(*p++);
      }
}
}


void Display_fill(unsigned char fill)
{
unsigned char page,column;
for(page=0xB7;page>=0xB0;page--)
{
   w_cmd(page);  //set page address
   w_cmd(0x10);  //set Column address MSB
   w_cmd(0x00);  //set column address LSB
   for(column=0;column<131;column++)
      {
      w_dat(fill);
      }
}
}





void Grid_white()
{
unsigned char page,column;
for(page=0xB7;page>=0xB0;page--)
{
   w_cmd(page);
   w_cmd(0x10);
   w_cmd(0x00);
   for(column=0;column<65;column++)
      {
      w_dat(0xFF);
      w_dat(0x00);
      }
}
}

void Grid_Black()
{
unsigned char page,column;
for(page=0xB7;page>=0xB0;page--)
{
   w_cmd(page);
   w_cmd(0x10);
   w_cmd(0x00);
   for(column=0;column<65;column++)
      {
      w_dat(0x00);
      w_dat(0xFF);
      }
}
}

void Grid_Line1()
{
unsigned char page,column;
for(page=0xB7;page>=0xB0;page--)
{
   w_cmd(page);
   w_cmd(0x10);
   w_cmd(0x00);
   for(column=0;column<131;column++)
      {
      w_dat(0xAA);
      }
}
}

void Grid_Line2()
{
unsigned char page,column;
for(page=0xB7;page>=0xB0;page--)
{
   w_cmd(page);
   w_cmd(0x10);
   w_cmd(0x00);
   for(column=0;column<131;column++)
      {
      w_dat(0x55);
      }
}
}

void Init_IC()
{
CS  =  0;
P3  =  0xFF;
LCD_Reset();
w_cmd(0xA2); //LCD Bias selection(1/65 Duty,1/9Bias)
w_cmd(0xA0); //ADC selection(SEG0->SEG128)
w_cmd(0xC0); //SHL selection(COM0->COM64)

w_cmd(0x26); //Regulator Resistor Selection
delay_ms(5);
w_cmd(0x81); //Electronic Volume
w_cmd(0x8); //Reference Register selection  Vo=(1+Rb/Ra)(1+a)*2.1=10
w_cmd(VC_ON); //Power Control(Vc=1;Vr=0;Vf=0)
delay_ms(10);
w_cmd(VC_ON|VR_ON);
delay_ms(10);
w_cmd(VC_ON|VR_ON|VF_ON);
delay_ms(10);
w_cmd(0xF8);
w_cmd(0x00);

delay_ms(5);
w_cmd(0xAF); //Display on

}

void main()
{


while(1)
{
  Init_IC();
  Display_fill(0xFF);
  delay_ms(1000);
  Grid_white();
  delay_ms(1000);
  Grid_Black();
  delay_ms(1000);
  Grid_Line1();
  delay_ms(1000);
  Grid_Line2();
  delay_ms(1000);
  Display_fill(0x00);
  delay_ms(5); ;
  Display(deep);
  delay_ms(3000);

}

}
unsigned char code deep[] = {
   0x00,0x00,0x00,0x00,0x0E,0x03,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x7C,0x23,0x1F,
   0x00,0x00,0x01,0x01,0x03,0x00,0x00,0x00,
   0x00,0x00,0x00,0x1F,0x07,0x06,0x06,0x06,
   0x06,0x06,0x06,0x1F,0x31,0x0E,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0x3F,
   0x00,0x00,0x00,0x00,0x7F,0x27,0x18,0x00,
   0xFF,0x2E,0x10,0x01,0x03,0x00,0x00,0x00,
   0x00,0x2F,0x39,0x05,0x0A,0x00,0x00,0x00,
   0x7F,0x27,0x18,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x7F,0x37,0x0C,0x00,0x00,
   0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x17,0x38,0x07,0x0D,0x00,0x03,0x03,
   0x03,0x03,0x03,0x03,0x0F,0x1E,0x01,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0xF0,0x8F,0x7F,
   0x20,0x38,0x28,0x2F,0x29,0x28,0xEF,0xE9,
   0x28,0x28,0x68,0x88,0x78,0x08,0x00,0x00,
   0x00,0x00,0x00,0xFF,0xFD,0x05,0x05,0x05,
   0x05,0x05,0x05,0xFD,0xFF,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,
   0x03,0x77,0x70,0x60,0xFF,0xFF,0x60,0x60,
   0xFF,0xFF,0x60,0xE0,0x20,0xE0,0x00,0x00,
   0x00,0x55,0xFF,0x2A,0x00,0x00,0x00,0x00,
   0xFF,0xFF,0x00,0x00,0x00,0x07,0x01,0x00,
   0x00,0x00,0x00,0x00,0x00,0x30,0x38,0x30,
   0x30,0x30,0x30,0xFF,0xFF,0x30,0x30,0x30,
   0x70,0x90,0xF0,0x10,0x00,0x00,0x00,0x00,
   0x00,0x75,0x8A,0x75,0x5A,0x00,0x80,0x80,
   0x00,0x01,0x0E,0x71,0x9E,0xE0,0x80,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x0C,0x1B,0x06,0x01,0x00,0x03,
   0x3F,0x00,0x7F,0x9F,0x60,0x81,0xFE,0x3F,
   0xC3,0x03,0x1F,0x14,0x03,0x00,0x00,0x00,
   0x00,0x00,0x00,0xDF,0xFE,0x02,0x02,0x02,
   0x02,0x02,0x02,0xFE,0xFF,0x00,0x00,0x00,
   0x00,0x00,0x80,0xE0,0xC0,0xC7,0xF8,0xFF,
   0xC0,0xC0,0x40,0x7F,0xDF,0xD8,0x18,0x18,
   0xD8,0x98,0x7F,0x1E,0x00,0x00,0x04,0x07,
   0x06,0x56,0xFF,0x86,0x16,0xBE,0xE2,0xC0,
   0xFF,0xFF,0xC0,0xC0,0xC0,0xFF,0x7F,0x80,
   0x00,0x00,0x00,0x38,0x28,0x28,0x28,0x28,
   0x2B,0x29,0x28,0xE8,0xE8,0x2F,0x29,0x28,
   0x28,0x28,0x2B,0xCD,0x36,0x0C,0x00,0x0C,
   0x0E,0x7D,0x8A,0x65,0xBE,0x7C,0x14,0x05,
   0x3F,0xD8,0x60,0xA0,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0xC0,0x3E,0xFF,0x03,0xFF,
   0x81,0x1E,0xF3,0xCC,0x03,0xFE,0x78,0x9F,
   0x02,0x11,0xFE,0xAB,0x00,0x00,0x00,0x00,
   0x07,0x02,0x00,0xF8,0xF8,0x87,0x81,0x80,
   0x80,0x83,0x80,0xF0,0x20,0xC0,0x03,0x07,
   0x00,0x00,0x00,0x00,0x0F,0xF1,0x0F,0xFF,
   0x7F,0x0F,0x00,0xFF,0xEF,0x28,0x28,0x28,
   0x28,0x28,0xEF,0xFB,0x00,0x00,0x00,0x00,
   0x00,0xAA,0xFF,0xAA,0x00,0x00,0x00,0x00,
   0xFF,0xFF,0x00,0x00,0x00,0xFF,0xFF,0x03,
   0x00,0x00,0x00,0x00,0x00,0x03,0x01,0x00,
   0xE0,0x9F,0x7F,0x00,0x00,0xFF,0x7F,0x80,
   0x00,0x70,0xF0,0x80,0x00,0x00,0x00,0x00,
   0x00,0x55,0xAA,0x55,0x96,0x20,0xEC,0xD8,
   0x37,0x38,0x3D,0x33,0x3C,0x3F,0x30,0xDF,
   0x3F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x00,0x03,0xFF,0xFF,
   0xFC,0x60,0xFF,0x03,0xFC,0xE0,0x7F,0xC1,
   0x3C,0xFE,0x3B,0x80,0x00,0x00,0x00,0x00,
   0x6A,0xFF,0xC1,0xC0,0xC0,0xFF,0xBF,0x40,
   0x00,0xFF,0xFF,0xC0,0xC0,0xC0,0xFF,0x9F,
   0x60,0x00,0x00,0x1F,0xFF,0xE0,0xFF,0xFF,
   0xC0,0xF0,0x00,0xFF,0xFE,0x30,0x3F,0x3F,
   0x30,0x31,0xFF,0xFC,0x00,0x00,0x00,0x00,
   0x00,0xAA,0xFF,0xB2,0x20,0x38,0x30,0x30,
   0xFF,0xFF,0x3F,0x33,0x30,0xF0,0xF0,0x90,
   0xF0,0x10,0x00,0x00,0x00,0x80,0x7C,0xC3,
   0x3F,0x00,0x80,0x00,0x01,0xFF,0xFC,0x00,
   0x00,0x00,0x00,0x01,0x03,0x00,0x00,0x00,
   0x00,0x55,0xAA,0x4A,0xB5,0x03,0x06,0x0F,
   0xF1,0x7E,0x80,0xF7,0x7F,0x80,0x07,0xF8,
   0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x3C,0x17,0xF0,0xFF,0xC0,
   0x00,0x00,0xFF,0x80,0x00,0x00,0xE0,0xFF,
   0xFF,0x7C,0x80,0x00,0x00,0x00,0x00,0x00,
   0xDA,0xFF,0x1C,0x18,0x18,0xFF,0xFF,0x00,
   0x00,0xFF,0xFF,0x18,0x18,0x18,0xFF,0xFF,
   0x00,0x00,0x3C,0xF0,0xC0,0x00,0xFF,0xFF,
   0x10,0x1C,0x18,0x18,0x18,0x1F,0xF3,0xFF,
   0x1B,0x18,0x18,0x78,0xC8,0x38,0x01,0x03,
   0x04,0xAD,0xFA,0xA6,0x28,0x58,0x60,0x1F,
   0xEF,0xF0,0xFC,0xFB,0x07,0x00,0x00,0x00,
   0x00,0x00,0x20,0x38,0x30,0x30,0x30,0xF0,
   0xB0,0x30,0x30,0x37,0xF9,0xFE,0x30,0x30,
   0x30,0x30,0x30,0xF0,0xF0,0x10,0x00,0x01,
   0x06,0x58,0xA7,0x1C,0xF1,0xC2,0x17,0x7C,
   0xC0,0x0F,0xF3,0x3C,0xC0,0x00,0xFF,0x07,
   0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0xFF,0x00,0xFF,0x00,
   0x00,0x00,0xFF,0x00,0x00,0x07,0x39,0xDE,
   0xE8,0x67,0x11,0x0C,0x03,0x01,0x00,0x00,
   0xAA,0xFF,0x23,0x03,0x03,0xFF,0xFF,0x00,
   0x00,0xFF,0xFF,0x03,0x03,0x03,0xFF,0xFF,
   0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,
   0x00,0x00,0x00,0x03,0x1F,0xEC,0xF0,0x80,
   0xFC,0x33,0x0E,0x01,0x01,0x00,0x60,0x90,
   0x50,0xA0,0x80,0x00,0x03,0x1D,0xE6,0x78,
   0x80,0x00,0x00,0xC0,0x38,0xE7,0x18,0x06,
   0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x03,0x1F,0x6C,0xB0,0xC0,0xC0,0xB0,0x48,
   0x46,0x31,0x08,0x07,0x01,0x00,0x00,0xD0,
   0x78,0xA0,0x80,0x40,0xB0,0xE0,0x80,0x07,
   0x7E,0xB0,0xC7,0x02,0x02,0x03,0xFE,0xFF,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0xE0,0x10,0xF0,0x00,
   0x00,0x7C,0xE8,0x1C,0x70,0xE0,0x80,0x00,
   0x00,0x00,0xC0,0x30,0xD0,0x40,0x00,0x00,
   0xD8,0xE8,0x00,0x00,0x00,0xF0,0xC0,0x00,
   0x00,0xF8,0xE0,0x00,0x00,0x00,0xF0,0xF0,
   0x00,0x00,0x00,0x00,0x00,0x00,0xFC,0xF8,
   0x14,0x38,0xF0,0xC0,0x00,0x00,0x00,0x00,
   0x00,0x40,0xE0,0x10,0x38,0xC0,0x00,0x00,
   0x00,0x08,0x38,0xA0,0x40,0x80,0x80,0x00,
   0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0x18,
   0x60,0xC0,0x00,0x1C,0x18,0x30,0x70,0xB0,
   0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
   0x00,0x80,0x60,0x18,0xF8,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00,0x28,0x38,0xC0,0x80,
   0x00,0x00,0x00,0x80,0x78,0x0C,0x70,0x80,
   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00

};

我用的是MSP430F149的单片机程序其实都是更上面差不多
只不过是定义了IO口的开关设置

(原文件名:电路图.jpg)

#define LCD_CS_OUT()                   P2DIR |= BIT3; //p4.0 SEL 输出方式
#define LCD_CS_ON()       P2OUT |= BIT3;//P4.0输出1
#define LCD_CS_OFF()       P2OUT &=~BIT3; //P4.0 输出0\

#define LCD_RST_OUT()                   P2DIR |= BIT4; //p4.0 SEL 输出方式
#define LCD_RST_ON()       P2OUT |= BIT4;//P4.0输出1
#define LCD_RST_OFF()       P2OUT &=~BIT4; //P4.0 输出0\

#define LCD_RS_OUT()                   P2DIR |= BIT5; //p4.0 SEL 输出方式
#define LCD_RS_ON()       P2OUT |= BIT5;//P4.0输出1
#define LCD_RS_OFF()       P2OUT &=~BIT5; //P4.0 输出0\

#define LCD_RW_OUT()                   P2DIR |= BIT6; //p4.0 SEL 输出方式
#define LCD_RW_ON()       P2OUT |= BIT6;//P4.0输出1
#define LCD_RW_OFF()       P2OUT &=~BIT6; //P4.0 输出0\

#define LCD_READ_OUT()                   P2DIR |= BIT7; //p4.0 SEL 输出方式
#define LCD_READ_ON()                P2OUT |= BIT7;//P4.0输出1
#define LCD_READ_OFF()       P2OUT &=~BIT7; //P4.0 输出0\

#define LCD_DAT_OUT()                   P4DIR |=0XFF;
#define LCD_OUT                         (P4OUT)

#define LCD_DAT_IN()                   P4DIR&=~0XFF;
#define LCD_IN (P4IN)

可是现在屏幕一点反应都没有同志们到底是哪里的问题啊希望有用过的大哥帮我看看！  2个星期了都一点反应都没有疯了！

brahen · 发表于 2011-7-8 20:49:36

有时候你严格按照datasheet你就错了。。。

GDYJ · 发表于 2011-7-8 22:04:57

你会51吗，会的话，我给你个汇编的，7565控制器通用，

以下是显示一行汉字的程序，汇编的，串行方式

XPOS  EQU 20H;页地址；
YPOS  EQU 21H;列地址
HZ_NUM EQU 22H;
;======================点阵接口定义=================================
LCD_DATA  BIT P1.3       ;液晶数据接口
LCD_SCL BIT P1.2;    串行时钟接口；
LCD_AO BIT P1.1    ;液晶数据指令选择
LCD_RST BIT P1.0    ;液晶复位RST
ORG 0000H;
JMP START;
ORG 0030H;

START:
   LCALL LCD_INIT;
   LCALL CLR_LCD;
;============第一行显示8个汉字==================================
   MOV XPOS,#0;范围：0-7对应1-8页；
   MOV YPOS,#0;范围：0-127；对应1-128列
   MOV HZ_NUM,#8;显示汉字数；
   MOV DPTR,#HZ_TAB;载入汉字点阵数据首址
   LCALL HZ_PLAY;

   JMP $

;======16*16点阵数据发送程序===============================================
;纵向取模，字节倒序方式
HZ_PLAY:
   ;MOV XPOS,#0;范围：0-7对应1-8页；
   ;MOV YPOS,#0;范围：0-127；对应1-128列
   ;MOV HZ_NUM,#8;显示汉字数；
   ;MOV DPTR,#HZ_TAB;载入汉字点阵数据首址
HZ:  CALL POS_SEND; 定位页列坐标
   MOV R3,#2;一个汉字分上下部分
HZ1: MOV R2,#16;一部分16个数据
HZ2: CLR A;
   MOVC A,@A+DPTR;;
   LCALL W_LCD_DAT;
   INC DPTR;
   INC YPOS;同步跟踪列地址，用于发送多个汉字时调整列地址；
   DJNZ R2,HZ2; 等待半个汉字数据发送完
;=========修改行，列=======================
   DJNZ R3,HZ3;  显示完一个汉字？
   JMP HZ4;
HZ3: INC XPOS;
   MOV A,YPOS;
   SUBB A,#16;
   MOV YPOS,A;
   CALL POS_SEND;
   JMP HZ1;继续发送下半部分汉字数据
HZ4: DJNZ HZ_NUM,HZ5;汉字数显示完成
   RET;
HZ5: DEC XPOS;
   CALL POS_SEND;
   JMP HZ;

;=============行列调整发送===================
;先发送页地址；再发送列高4位地址；接着发送列第四位地址；
POS_SEND:
   MOV A,XPOS;
   ADD A,#0B0H;
   CALL W_LCD_COM;
   MOV A,YPOS;
   PUSH ACC;
   ANL A,#11110000B;屏蔽低位列地址；
   SWAP A;
   ADD A,#10H;
   CALL W_LCD_COM;
   POP ACC;
   ANL A,#00001111B;屏蔽高位列地址；
   CALL W_LCD_COM;
   RET;
;===================写液晶控制命令=====================
;串行方式，高位在前，下降沿输入。
W_LCD_COM:
      CLR LCD_AO ;写的是命令；
      MOV R4,#8;
SEND_COM: ;
      CLR C;
      RLC A;
      MOV LCD_DATA,C;
      CLR LCD_SCL;
      SETB LCD_SCL;
      DJNZ R4,SEND_COM;
      RET

;====================写液晶数据=========================
;串行方式，高位在前，下降沿输入。
W_LCD_DAT:
      SETB LCD_AO; 写的是数据；
      MOV R4,#8;
SEND_DAT: ;
      CLR C;
      RLC A;
      MOV LCD_DATA,C;
      CLR LCD_SCL;
      SETB LCD_SCL;
      DJNZ R4,SEND_DAT;
      RET

;================初始化=========================================
LCD_INIT:
      CLR LCD_RST
      NOP
      NOP
      SETB LCD_RST
      MOV A,#0E2H    ;复位；
      ACALL W_LCD_COM;
      MOV A,#0AFH    ;0AEH/0AFH 关/开液晶显示
      CALL W_LCD_COM
      MOV A,#0A2H       ;0A2H/0A3H (1/9)/(1/7) LCD偏压比率设置
      CALL W_LCD_COM
      MOV A,#23H       ;20H-27H V5电压调整器的内部电阻比设置
      CALL W_LCD_COM
      MOV A,#81H       ;可编程电压调整模式设置
      CALL W_LCD_COM
      MOV A,#30H       ;0H-3FH 电压调整模设置寄存器指令数据V5小-大
      CALL W_LCD_COM
      MOV A,#0D2H       ;驱动模式设置
      CALL W_LCD_COM
      MOV A,#0          ;0C0H/0/40H/80H 1/2/3/4 模式选择寄存器设置
      CALL W_LCD_COM
      MOV A,#2FH       ;28H/2CH/2EH/2FH;电源电路功能
      CALL W_LCD_COM       ;推进电路/电压调节电路/电压跟随电路
      MOV A,#0C0H       ;0C0H/0C8H 行输出模式选择正向/反向
      CALL W_LCD_COM
      MOV A,#0A0H       ;0A0H/0A1H 列地址方向选择
      CALL W_LCD_COM
      MOV A,#0A4H       ;0A4H/0A5H 全屏正常显示/全点亮指令
      CALL W_LCD_COM
      MOV A,#0A6H       ;0A6H/0A7H 正相反相显示控制指令，RAM中数据不变
      CALL W_LCD_COM
      ;MOV A,#0ACH       ;0ACH/0ADH OFF/ON 静态指示器控制指令
      ;CALL W_LCD_COM
      ;MOV A,#0H       ;0/1/2/3
      ;CALL W_LCD_COM
      ;MOV A,#0B0H       ;0B0-0B8H 设置显示起始页地址
      ;CALL W_LCD_COM
      ;MOV A,#40H       ;40H-7FH 设置显示起始行对应RAM行号
      ;CALL W_LCD_COM
      RET

;====================清屏====================================
CLR_LCD:MOV R0,#8
D1:    MOV A,#0B0H-1
      ADD A,R0
      CALL W_LCD_COM;写液晶控制命令
      MOV A,#00H;;;;;;;;;列低四位；
      CALL W_LCD_COM;写液晶控制命令
      MOV A,#10H;液晶Y地址控制指令+10H;列高四位；
      CALL W_LCD_COM;写液晶控制命令
      MOV R1,#128
D2:    MOV A,#00H;
      CALL W_LCD_DAT;写液晶数据
      DJNZ R1,D2
      DJNZ R0,D1
      RET

HZ_TAB:
;想显示什么自己加吧

END

用的字幕提取软件：zimo221

(原文件名:字模.jpg)

boming · 发表于 2011-7-10 20:25:20

都是牛人,还用汇编.好佩服

joing2000 · 发表于 2011-7-12 14:09:25

加我QQ吧，我这有完整的程序。还有硬件电路。
1143946234

sunhaoqin · 发表于 2011-9-13 16:15:24

mark

ayumi8 · 发表于 2011-11-2 12:15:33

点亮了么？？？关注下

hnsw · 发表于 2011-11-11 22:35:49

mark~~~

wmlsxq · 发表于 2012-5-23 00:23:00

我也遇到问题了，显示对比度不稳；一会儿亮一会儿暗，没有找到解决的办法，有大侠指点吗？

名字不能太长 · 发表于 2012-12-4 20:07:55

我最近在用树莓派驱动ST7565的液晶。这个液晶的取模方式有点奇怪。

bingtuohun · 发表于 2013-12-22 19:43:28

brahen 发表于 2011-7-8 20:49
有时候你严格按照datasheet你就错了。。。

这位大侠你应该说严格按中文的datasheet就错了，英文原厂很少有错误。

dhw5qq · 发表于 2014-4-27 14:25:24

我的液晶在做光标的时候，到现在还没解决好，现在都2个星期过去了，我好郁闷，

dhw5qq · 发表于 2014-4-27 14:43:15

我现在想在上面加个光标，而且按键可以控制的！不知道君可否提供一下思路！

mdjfish · 发表于 2020-4-16 18:29:30

我现在想在上面加个光标

关于cog 12864 ST7565驱动液晶的问题 我崩溃了！

阿莫论坛20周年了！感谢大家的支持与爱护！！

关于cog 12864 ST7565驱动液晶的问题我崩溃了！