仿真元原理圖如下：

/*------------------------------------- 功能：LCD1602局部動態(tài)顯示 描述：在屏幕的第二行固定位置顯示count: 后面接著動態(tài)顯示按鍵次數(shù)(00 ~ 99) Author: Zhang Kaizhou Date: 2019-6-5 10:50:22 -------------------------------------*/ #include <reg52.h> #include <string.h> #define uchar unsigned char #define uint unsigned intuchar code table0[] = {"Press time"}; // 每行的字符數(shù)據(jù) uchar code table1[] = {"Count:00"}; uchar code table2[] = {"0123456789"}; sbit lcdrs = P1^2; // LCD數(shù)據(jù)/命令選擇端 sbit lcdrw = P1^3; // LCD讀寫選擇端 sbit lcden = P1^4; // LCD使能端，高脈沖有效 sbit k1 = P1^5; uchar num, ge = 0, shi = 0;void init(); void displayInit(); void keyScan(); void writeCommand(uchar command); void delay(uchar xms); void writeData(uchar dat);void main() {init();displayInit();while(1){ keyScan();} }/*初始化LCD1602的設(shè)置*/ void init() {lcden = 0; // 拉低使能端，準(zhǔn)備產(chǎn)生使能高脈沖信號writeCommand(0x38); // 顯示模式設(shè)置(16x2， 5x7點陣，8位數(shù)據(jù)接口)writeCommand(0x0c); // 開顯示，不顯示光標(biāo)writeCommand(0x06); // 寫一個字符后地址指針自動加1writeCommand(0x01); // 顯示清零，數(shù)據(jù)指針清零 }/*LCD上電界面*/ void displayInit() {writeCommand(0x80); // 將數(shù)據(jù)指針定位到第一行首for(num = 0; num < strlen(table0); num++){writeData(table0[num]);delay(5);}writeCommand(0x80 + 0x40); // 將數(shù)據(jù)指針定位到第二行首for(num = 0; num < strlen(table1); num++){writeData(table1[num]);delay(5);} }/*按鍵掃描*/ void keyScan() {writeCommand(0x80 + 0x40 + strlen(table1) - 0x01);if(!k1){delay(5);if(!k1){ while(!k1);ge++;if(ge == 10){ge = 0;shi++;if(shi == 10){shi = 0;displayInit();}else{writeCommand(0x80 + 0x40 + strlen(table1) - 0x02);writeData(table2[shi]);writeCommand(0x80 + 0x40 + strlen(table1) - 0x01);writeData(table2[ge]);}}else{writeData(table2[ge]);}}} }/*寫指令函數(shù)*/ void writeCommand(uchar command) {lcdrs = 0; // 命令選擇lcdrw = 0;P0 = command;delay(5);lcden = 1; // 產(chǎn)生一個正脈沖使能信號delay(5);lcden = 0; }/*寫數(shù)據(jù)函數(shù)*/ void writeData(uchar dat) {lcdrs = 1; // 數(shù)據(jù)選擇lcdrw = 0;P0 = dat;delay(5);lcden = 1;delay(5);lcden = 0; }/*延時函數(shù)*/ void delay(uchar xms) {uint i, j;for(i = xms; i > 0; i--)for(j = 110; j > 0; j--); }

總結(jié)

以上是生活随笔為你收集整理的LCD1602动态显示的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯，歡迎將生活随笔推薦給好友。