LCD1602显示总结

仿真原理图如下：

1.LCD1602正常显示两行数据

/*------------------------

功能：LCD1602显示两行数据

Author: Zhang Kaizhou

Date: 2019-6-3 12:42:22

------------------------*/

#include

#define uchar unsigned char

#define uint unsigned int

uchar code table0[] = {'0123456789ABCDEF'}; // 每行的字符数据

uchar code table1[] = {'0123456789abcdef'};

sbit lcdrs = P1^2; // LCD数据/命令选择端

sbit lcdrw = P1^3; // LCD读写选择端

sbit lcden = P1^4; // LCD使能端，高脉冲有效

uchar num;

void init();

void writeCommand(uchar command);

void delay(uchar xms);

void writeData(uchar dat);

void main()

{

init();

writeCommand(0x80); // 将数据指针定位到第一行的首地址

for(num = 0; num < 16; num++)

{

writeData(table0[num]);

delay(5);

}

writeCommand(0x80 + 0x40); // 将数据指针定位到第二行的首地址

for(num = 0; num < 16; num++)

{

writeData(table1[num]);

delay(5);

}

while(1);

}

/*初始化LCD1602的设置*/

void init()

{

lcden = 0; // 拉低使能端，准备产生使能高脉冲信号

writeCommand(0x38); // 显示模式设置(16x2， 5x7点阵，8位数据接口)

writeCommand(0x0c); // 开显示，不显示光标

writeCommand(0x06); // 写一个字符后地址指针自动加1

writeCommand(0x01); // 显示清零，数据指针清零

}

/*写指令函数*/

void writeCommand(uchar command)

{

lcdrs = 0; // 命令选择

lcdrw = 0;

P0 = command;

delay(5);

lcden = 1; // 产生一个正脉冲使能信号

delay(5);

lcden = 0;

}

/*写数据函数*/

void writeData(uchar dat)

{

lcdrs = 1; // 数据选择

lcdrw = 0;

P0 = dat;

delay(5);

lcden = 1;

delay(5);

lcden = 0;

}

/*延时函数*/

void delay(uchar xms)

{

uint i, j;

for(i = xms; i > 0; i--)

for(j = 110; j > 0; j--);

}

2.整屏左移显示

/*------------------------

功能：LCD1602整屏左移显示

Author: Zhang Kaizhou

Date: 2019-6-3 12:35:23

------------------------*/

#include

#define uchar unsigned char

#define uint unsigned int

uchar code table0[] = {'0123456789ABCDEF'}; // 每行的字符数据

uchar code table1[] = {'0123456789abcdef'};

sbit lcdrs = P1^2; // LCD数据/命令选择端

sbit lcdrw = P1^3; // LCD读写选择端

sbit lcden = P1^4; // LCD使能端，高脉冲有效

uchar num;

void init();

void writeCommand(uchar command);

void delay(uchar xms);

void writeData(uchar dat);

void main()

{

init();

writeCommand(0x80 + 0x10); // 将数据指针定位到第一行的非显示存储区

for(num = 0; num < 16; num++)

{

writeData(table0[num]);

delay(5);

}

writeCommand(0x80 + 0x50); // 将数据指针定位到第二行的非显示存储区

for(num = 0; num < 16; num++)

{

writeData(table1[num]);

delay(5);

}

for(num = 0; num < 16; num++) // 循环整屏左移

{

writeCommand(0x1c); // 整屏左移

delay(100);

}

while(1);

}

/*初始化LCD1602的设置*/

void init()

{

lcden = 0; // 拉低使能端，准备产生使能高脉冲信号

writeCommand(0x38); // 显示模式设置(16x2， 5x7点阵，8位数据接口)

writeCommand(0x0c); // 开显示，不显示光标

writeCommand(0x06); // 写一个字符后地址指针自动加1

writeCommand(0x01); // 显示清零，数据指针清零

}

/*写指令函数*/

void writeCommand(uchar command)

{

lcdrs = 0; // 命令选择

lcdrw = 0;

P0 = command;

delay(5);

lcden = 1; // 产生一个正脉冲使能信号

delay(5);

lcden = 0;

}

/*写数据函数*/

void writeData(uchar dat)

{

lcdrs = 1; // 数据选择

lcdrw = 0;

P0 = dat;

delay(5);

lcden = 1;

delay(5);

lcden = 0;

}

/*延时函数*/

void delay(uchar xms)

{

uint i, j;

for(i = xms; i > 0; i--)

for(j = 110; j > 0; j--);

}

3.刷屏显示多行字符

/*----------------------------

功能：LCD1602刷屏显示多行字符

Author: Zhang Kaizhou

Date: 2019-6-4 16:15:43

-----------------------------*/

#include

#include

#define uchar unsigned char

#define uint unsigned int

uchar code table0[] = {'0123456789ABCDEF'}; // 每行的字符数据

uchar code table1[] = {'0123456789abcdef'};

uchar code table2[] = {'Welcome to here!'};

uchar code table3[] = {'I'm ZKZ!'};

uchar code table4[] = {'Life is nice!'};

uchar code table5[] = {'Tomorrow is OK!'};

sbit lcdrs = P1^2; // LCD数据/命令选择端

sbit lcdrw = P1^3; // LCD读写选择端

sbit lcden = P1^4; // LCD使能端，高脉冲有效

uchar num;

void init();

void writeCommand(uchar command);

void delay(uint xms);

void writeData(uchar dat);

void main()

{

init();

/*第一屏*/

writeCommand(0x80); // 将数据指针定位到第一行首

for(num = 0; num < strlen(table0); num++)

{

writeData(table0[num]);

delay(5);

}

writeCommand(0x80 + 0x40); // 将数据指针定位到第二行首

for(num = 0; num < strlen(table1); num++)

{

writeData(table1[num]);

delay(5);

}

delay(2000);

writeCommand(0x01);

/*第二屏*/

writeCommand(0x80); // 将数据指针定位到第一行首

for(num = 0; num < strlen(table2); num++)

{

writeData(table2[num]);

delay(5);

}

writeCommand(0x80 + 0x40); // 将数据指针定位到第二行首

for(num = 0; num < strlen(table3); num++)

{

writeData(table3[num]);

delay(5);

}

delay(2000);

writeCommand(0x01);

/*第三屏*/

writeCommand(0x80); // 将数据指针定位到第一行首

for(num = 0; num < strlen(table4); num++)

{

writeData(table4[num]);

delay(5);

}

writeCommand(0x80 + 0x40); // 将数据指针定位到第二行首

for(num = 0; num < strlen(table5); num++)

{

writeData(table5[num]);

delay(5);

}

while(1);

}

/*初始化LCD1602的设置*/

void init()

{

lcden = 0; // 拉低使能端，准备产生使能高脉冲信号

writeCommand(0x38); // 显示模式设置(16x2， 5x7点阵，8位数据接口)

writeCommand(0x0c); // 开显示，不显示光标

writeCommand(0x06); // 写一个字符后地址指针自动加1

writeCommand(0x01); // 显示清零，数据指针清零

}

/*写指令函数*/

void writeCommand(uchar command)

{

lcdrs = 0; // 命令选择

lcdrw = 0;

P0 = command;

delay(5);

lcden = 1; // 产生一个正脉冲使能信号

delay(5);

lcden = 0;

}

/*写数据函数*/

void writeData(uchar dat)

{

lcdrs = 1; // 数据选择

lcdrw = 0;

P0 = dat;

delay(5);

lcden = 1;

delay(5);

lcden = 0;

}

/*延时函数*/

void delay(uint xms)

{

uint i, j;

for(i = xms; i > 0; i--)

for(j = 110; j > 0; j--);

}