利用AT89S52单片机总线方式点亮LM6063CCW（ST7565）显示

ID:46918 · 发表于 2020-3-4 18:56

液晶显示模块通常用来作为控制设备的人机交互的窗口，把机器/设备的内部参数显示在液晶屏幕上，今天和大家来分享一下，如何利用单片机的总线来点亮液晶显示模块的；

通常情况下，拿到一个液晶屏幕要如何才能点亮他呢，首先得看懂用户手册，也不是要全看懂哈，看懂关键的几个点就可以了：

第一，接口定义；

第二，时序图；

第三，指令表；

看懂这些就差不多了，这里就拿工业显示屏幕里比较知名的拓普微的LM6063CCW的模块（控制器是ST7565的，128x64液晶屏用的最多的控制器了）来做个讲解，首先打开手册(网上一搜一大把哈)：

咱按着节奏来：

第一：接口定义

接口定义

全是英文的，不要被吓到哈，其实这些都是比较简单的英文，我四级都没过都能看懂，相信你们也都可以哈；怕有些草根确实看不明白，我挑几个关键点说一下，首先我们只看8080模式：1.手册里说这个是默认的；2.AT89S52的总线就是8080的；

A0 通道选择信号，当A0=0时，选择指令通道；A0=1时，选择数据通道;

/RD为读信号，低电平有效；

/WR为写信号，低电平有效；注意：/WR和/RD 不能同时为底电平哈

/RES复位脚，低电平有效；

/CS1片选型号，低电平有效；与模块通讯都需要片选信号有效情况下；

第二：时序图

时序图

如何看懂时序图在这里就不多说了在学校师傅应该是有教过的哈，如果已经还给师傅了的话，可以私聊我；

第三:指令表

指令表

英文的，我也就不多解释了，最好是看ST7565的IC资料也是英文的，不过我找到了中文版的资料需要的童鞋可以私聊我；

好了接下来画重点：

很多人都有用IO口点亮过液晶显示模块，今天咱来介绍一下更高级的点亮办法，因为用IO口模拟时序，就需要一个一个信号的去操作，很耗费时间，从而会导致整幅图片刷新时，能看出刷的效果；那么怎么样才能够避免出现刷的效果呢，可以通过节省送数据的时间，而51单片机设计的时候为了快速访问外部存储，带有16根地址线可直接寻址既80总线，这种方式的好处是，他的读写时序都是单片机内部产生的时序，因此缩短模拟IO口所花费的时间，可能这么说你感觉不到什么，举个实例:假设单片机的指令周期为1us，如果是IO口模拟的话至少需要7us，如果是用总线方式只需要1us，相差7倍！废话少说，直接上干货：

要使用总线方式，首先硬件要连接好，可参照下面的原理图设计硬件：

原理图

总线寻址方式是模块的数据总线直接挂在89S52的数据总线上，/RD、/WR作为模块的读、写控制信号，/CS信号和A0信号都由地址线译码产生，模块的/RES接RC复位电路。

总线寻址方式驱动函数如下：（地址定义，根据用户平台接口修改）

1、指令代码写入函数

voidSdCmd(uchar Command)

{

uchar xdata *Com_addr;

Com_addr =0x8000; // 指令通道地址

*Com_addr = Command; //写指令操作

}

2、显示数据写入函数

voidSdData(uchar DData)

{

uchar xdata *DData_addr;

DData_addr =0x8100; // 数据通道地址

*DData_addr = DData; //写数据操作

}

3、显示数据读取函数

ucharRdData()

{

uchar DData;

uchar xdata *DData_addr;

DData_addr =0x8100; //数据通道地址

DData = DData_addr; //读数据操作

return(DData); //返回数据值

}

其他的代码就没啥好说的了，参照附件

#include <stdio.h>
#include <reg52.h>
#include <intrins.h>
#define uchar unsigned char // 0~255
#define uint unsigned int // 0~65535
bit AutoRun; // 1 for auto run, 0 for manual run
uchar ContrastLevel; // for contrast setting level
//-----------------------------------
// dispaly data (128x64)
//-----------------------------------
uchar code Logo[]={
/*-- 调入了一幅图像：D:\guoq files\technic support\pic\LM6063c-LOGO-128x64.bmp --*/
/*-- 宽度x高度=128x64 --*/
0xFF,0x01,0x81,0x01,0x81,0x01,0x81,0x01,0x81,0x41,0x81,0x41,0x81,0x41,0x81,0x41,
0x81,0x41,0xA1,0x41,0xA1,0x41,0xA1,0x51,0xA1,0x51,0xA1,0x51,0xA9,0x51,0xA9,0x51,
0xA9,0x55,0xA9,0x55,0x29,0x15,0xAB,0x95,0xCB,0xC5,0xEB,0xE5,0xE3,0xF5,0xF3,0xF9,
0xFB,0xF9,0xF9,0xFD,0xFD,0xFD,0xFD,0xFD,0xFD,0x01,0x01,0x41,0x81,0x01,0x81,0x81,
0x81,0x81,0x81,0x81,0x81,0x81,0x01,0x01,0x01,0xC1,0x01,0x01,0xC1,0x01,0x01,0x81,
0x01,0x01,0xC1,0x01,0x01,0x01,0xC1,0x01,0x01,0x81,0x81,0x81,0x81,0x81,0x81,0x81,
0x01,0x01,0x01,0x01,0x41,0x81,0x01,0x01,0x81,0x41,0x01,0x01,0x01,0x01,0x01,0x81,
0x41,0x81,0x01,0xC1,0x01,0x81,0x01,0xC1,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0xFF,
0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x80,0x41,0xA8,0x55,0xAA,0x55,0xAA,0x55,0x2A,0x95,0xCA,0xE5,0xF2,0xF9,
0xF8,0xFD,0xFC,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x42,0xE4,0x10,0x00,0x11,0x94,
0x52,0xFC,0x50,0x92,0x14,0x11,0x00,0x84,0x84,0xFF,0x44,0x44,0xFF,0x00,0x00,0xFF,
0x00,0x00,0xFF,0x00,0x22,0x22,0xFF,0x12,0x2A,0x10,0xFC,0x13,0x10,0x10,0xF0,0x00,
0x00,0x08,0x0B,0x0D,0xE9,0xAF,0xA9,0xA9,0xAF,0xA9,0xED,0x0B,0x09,0x00,0x11,0xF8,
0x04,0x0B,0xEA,0x2B,0xEA,0x8B,0x3C,0xC3,0x3E,0x02,0x00,0x00,0x00,0x00,0x00,0xFF,
0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x40,
0xA8,0x54,0x2A,0x95,0xCA,0xE5,0xF2,0xF9,0xFC,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x20,0x20,0x23,0x20,0x21,0x21,0x20,
0x20,0x23,0x20,0x20,0x21,0x21,0x20,0x20,0x21,0x20,0x22,0x21,0x20,0x20,0x20,0x20,
0x20,0x20,0x23,0x20,0x20,0x22,0x23,0x20,0x20,0x20,0x23,0x21,0x21,0x21,0x23,0x20,
0x20,0x20,0x20,0x20,0x23,0x22,0x22,0x22,0x22,0x22,0x23,0x20,0x20,0x20,0x20,0x23,
0x22,0x21,0x20,0x20,0x21,0x22,0x21,0x20,0x21,0x22,0x20,0x20,0x20,0x20,0x20,0xFF,
0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x20,0x14,0xCA,0xE1,
0xF8,0xFC,0xFF,0xFF,0xFB,0xFB,0xC3,0xFB,0xFB,0xFF,0xE7,0xDB,0xDB,0xDB,0xE7,0xFF,
0xC3,0xEB,0xEB,0xEB,0xF7,0xFF,0xE3,0xDF,0xEF,0xDF,0xE3,0xFF,0xCF,0xE7,0xEB,0xE7,
0xCF,0xFF,0xFB,0xF7,0xCF,0xF7,0xFB,0xFF,0xFF,0x00,0x01,0x01,0xFF,0x01,0x01,0x00,
0x3C,0x42,0x81,0x81,0x81,0x42,0x3C,0x00,0xFF,0x11,0x11,0x11,0x0E,0x03,0x3C,0xC0,
0x30,0x0E,0x01,0x0E,0x30,0xC0,0x3C,0x03,0xC0,0x30,0x2E,0x21,0x2E,0x30,0xC0,0x00,
0x01,0x06,0x08,0xF0,0x08,0x06,0x01,0x00,0x00,0x00,0x00,0xFF,0x80,0x80,0x80,0x80,
0x04,0xFF,0x84,0x00,0x78,0x84,0x84,0x48,0xFF,0x00,0x00,0x80,0x00,0x00,0x00,0xFF,
0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0xF0,0xF0,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0xF0,0xF0,0xF0,0x70,0xF0,0xC0,0x00,0x00,0x00,0xC0,0xF0,0x70,0xF0,0xF0,
0xF0,0x00,0x00,0x80,0xE0,0xE0,0x70,0x30,0x30,0x70,0x60,0x40,0x00,0x00,0x80,0xE0,
0xE0,0x70,0x30,0x70,0xE0,0xE0,0x80,0x00,0x00,0x80,0xE0,0xE0,0x70,0x30,0x30,0x70,
0x60,0x40,0x00,0x00,0xC0,0xE0,0xF0,0x30,0x30,0x30,0xF0,0xE0,0xC0,0x00,0x00,0x00,
0xC0,0xE0,0xE0,0x70,0x70,0x70,0x70,0xF0,0xE0,0xE0,0x80,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,
0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0x80,0x80,0x80,0x80,0x80,0x80,0x80,
0x00,0x00,0xFF,0xFF,0xFF,0x00,0x07,0x7F,0xFC,0xC0,0xFC,0x7F,0x07,0x00,0xFF,0xFF,
0xFF,0x00,0x00,0x7F,0xFF,0xFF,0x86,0x03,0x87,0xFF,0xFE,0x7C,0x00,0x00,0x7F,0xFF,
0xFF,0x80,0x00,0x80,0xFF,0xFF,0x7F,0x00,0x00,0x7F,0xFF,0xFF,0x86,0x03,0x87,0xFF,
0xFE,0x7C,0x00,0x00,0xC0,0xC0,0xC0,0x00,0x06,0x06,0xFF,0xFF,0xF9,0x00,0x00,0x3F,
0xFF,0xFF,0xC0,0x80,0x80,0x80,0x80,0xC0,0xE1,0xE1,0x40,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,
0xFF,0x00,0xE0,0x20,0x20,0x20,0x20,0x00,0xC0,0x20,0x20,0x20,0x20,0x40,0x00,0x20,
0x20,0xE0,0x20,0x20,0x00,0xE0,0x43,0x83,0x03,0x03,0xE3,0x03,0x03,0x03,0x03,0xE3,
0x00,0x00,0x03,0x03,0x03,0x80,0x40,0x20,0x23,0x23,0x43,0x00,0xE0,0x20,0x23,0x23,
0x43,0x80,0x00,0x00,0x01,0x01,0x83,0x43,0xE3,0x01,0x01,0x00,0x40,0x20,0x20,0x21,
0xC1,0x03,0xC3,0x23,0x21,0x21,0xC0,0x00,0x00,0x00,0x01,0x81,0x03,0x03,0x03,0x81,
0x01,0x00,0x00,0x00,0xC0,0x21,0x23,0x23,0x43,0x03,0x03,0x81,0x40,0xE0,0x00,0x00,
0x00,0x01,0x01,0xE3,0x23,0x23,0x23,0xC3,0x01,0xA1,0x00,0x80,0x00,0x00,0x00,0x80,
0x00,0x00,0x80,0x80,0x80,0x00,0x00,0xE0,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0xFF,
0xFF,0x80,0x9F,0x81,0x81,0x81,0x80,0x80,0x88,0x91,0x91,0x92,0x92,0x8C,0x80,0x80,
0x80,0x9F,0x80,0x80,0x80,0x9F,0x80,0x81,0x86,0x88,0x9F,0x80,0x80,0x80,0x80,0x9F,
0x90,0x90,0x90,0x90,0x80,0x87,0x88,0x90,0x90,0x90,0x88,0x80,0x9F,0x90,0x90,0x90,
0x88,0x87,0x80,0x80,0x80,0x80,0x80,0x80,0x9F,0x80,0x80,0x80,0x90,0x98,0x94,0x92,
0x91,0x80,0x8E,0x91,0x91,0x91,0x8E,0x80,0x80,0x80,0x80,0x90,0x89,0x86,0x89,0x90,
0x80,0x80,0x80,0x80,0x8F,0x91,0x91,0x91,0x8E,0x80,0x86,0x85,0x84,0x9F,0x84,0x80,
0x80,0x80,0x80,0x9F,0x82,0x82,0x82,0x81,0x80,0x9F,0x80,0x90,0x89,0x86,0x89,0x90,
0x80,0x8F,0x92,0x92,0x92,0x8B,0x80,0x9F,0x80,0x89,0x92,0x92,0x94,0x89,0x80,0xFF
};
//-----------------------------------
// Delay Routine
//-----------------------------------
void delayms(uint m) // 12MHz Xtal, close to ms value
{
uint j;
uint i;
for(i=0; i<m; i++)
for(j=0; j<109; j++)
_nop_();
}
//--------------------------------------------
//总线寻址方式驱动程序 (INTEL8080 时序)
//-----指令代码写入函数----------------------
void SdCmd(uchar Command)
{
uchar xdata *Com_addr;
Com_addr =0x8000; // 指令口地址
*Com_addr = Command; // 写指令操作
}
//-----显示数据写入函数--------------------------
void SdData(uchar DData)
{
uchar xdata *DData_addr;
DData_addr =0x8100; // 数据口地址
*DData_addr = DData; // 写数据操作
}
//------显示数据读取函数-------------------------
uchar RdData()
{
uchar DData;
uchar xdata *DData_addr;
DData_addr = 0x8100; // 读数据地址
DData = *DData_addr; // 读数据操作
return(DData); //返回数据值
}
//-----------------------------------
// Write a Screen
//-----------------------------------
void WriteScreen(uchar *DisplayData) // DisplayData should be 164x64/8 = 1312byte
{
uchar TempData;
uchar i, j;
for(i=0;i<8;i++)
{
SdCmd(0xb0 | i); // select page 0~7
SdCmd(0x10); // start form column 0
SdCmd(0x00); // (2byte command)
for(j=0;j<128;j++)
{
TempData=(*(DisplayData+(i*128)+j));
SdData(TempData);
}
}
}
/*
//-----------------------------------
// Contrast control
//-----------------------------------
void LCD_Darker(void)
{
if (ContrastLevel<0x3F)
{
ContrastLevel++;
}
SdCmd(0x81); // E-Vol setting
SdCmd(ContrastLevel); // (2byte command)
}
void LCD_Lighter(void)
{
if (ContrastLevel>0x00)
{
ContrastLevel--;
}
SdCmd(0x81); // E-Vol setting
SdCmd(ContrastLevel); // (2byte command)
}
*/
//-----------------------------------
// Init LCD module
//-----------------------------------
void initLCDM(void)
{
_RST=1; // hardware reset LCD module
_RST=0;
delayms(1);
_RST=1;
delayms(10);
ContrastLevel=0x21; // default Contrast Level
SdCmd(0xaf); // display on
SdCmd(0x40); // display start line=0
SdCmd(0xa1); // ADC=1
SdCmd(0xa6); // normal display
SdCmd(0xa4); // Display all point = off
SdCmd(0xa2); // LCD bias = 1/9
SdCmd(0xc0); // Common output mode select= reverse
SdCmd(0x2f); // Power control = all on
SdCmd(0x25); // RA/RB setting
SdCmd(0xf8);SdCmd(0x00);// Booster Ratio Set= 2x,3x,4x (2byte command)
SdCmd(0x81); // E-Vol setting
SdCmd(ContrastLevel); // (2byte command)
}
//-----------------------------------
// Main Program
//-----------------------------------
void main()
{
SP=0x60;
EA = 0; // disable interrupts
_RST = 1;
initLCDM();
WriteScreen(Logo);
while(1)
{
}
}
//end of program

复制代码

ID:343102 · 发表于 2021-7-5 21:22

程序缺太多内容。

ID:46918 · 发表于 2020-3-10 08:33

看样子大家都是大虾呀，都没啥人提问呀

帐号		自动登录	找回密码
密码			立即注册

利用AT89S52单片机总线方式点亮LM6063CCW（ST7565）显示

评分