2单片机实战准备阶段..docVIP

《单片机第二阶段总结》 第八讲 液晶的控制和调试 内容精要： 1．1602释义：3min 21602各个引脚定义：7min 3画板子的技巧：11min 4读状态：13min 5高脉冲释义：17min 6液晶自动显示接法：36min 7书籍介绍：37min 8电路板中液晶接法：38min 9第一次用液晶要注意的问题：68min 一课上练习 1让液晶显示一个光标 #includereg52.h #define uchar unsigned char #define uint unsigned int sbit dula=P2^6; sbit wela=P2^7; sbit lcden=P3^4; sbit lcdrs=P3^5; void delay(uint z) { uint x,y; for(x=z;x0;x--) for(y=110;y0;y--); } void write_com(uchar com) { lcdrs=0; P0=com; delay(5); lcden=1; delay(5); lcden=0; } void write_data(uchar date) { lcdrs=1; P0=date; delay(5); lcden=1; delay(5); lcden=0; } void init() { dula=0; wela=0; lcden=0; write_com(0x38); write_com(0x0e); write_com(0x06); write_com(0x01); } void main() { init(); while(1); } 2让液晶显示一个1. #includereg52.h #define uchar unsigned char #define uint unsigned int sbit dula=P2^6; sbit wela=P2^7; sbit lcden=P3^4; sbit lcdrs=P3^5; void delay(uint z) { uint x,y; for(x=z;x0;x--) for(y=110;y0;y--); } void write_com(uchar com) { lcdrs=0; P0=com; delay(5); lcden=1; delay(5); lcden=0; } void write_data(uchar date) { lcdrs=1; P0=date; delay(5); lcden=1; delay(5); lcden=0; } void init() { dula=0; wela=0; lcden=0; write_com(0x38); write_com(0x0e); write_com(0x06); write_com(0x01); } void main() { init(); write_data(1); while(1); } 3让液晶显示AB #includereg52.h #define uchar unsigned char #define uint unsigned int sbit dula=P2^6; sbit wela=P2^7; sbit lcden=P3^4; sbit lcdrs=P3^5; void delay(uint z) { uint x,y; for(x=z;x0;x--) for(y=110;y0;y--); } void write_com(uchar com) { lcdrs=0; P0=com; delay(5); lcden=1; delay(5); lcden=0; } void write_data(uchar date) { lcdrs=1; P0=date; delay(5); lcden=1; delay(5); lcden=0; } void init() { dula=0; wela=0; lcden=0; write_com(0x38); write_com(0x0e); write_com(0x06); write_com(0x01); } void main() { init(); write_data(0x41); delay(40); write_data(B); while(1); } 4让液晶分两行显示，第一行显示：ＩＬＩＫＥ　ＭＣＵ．第二行显示：WWW.TXMCU.COM #includereg52.h #define uchar unsigned char #