biyesheji.zip_1062液晶屏代码

/*----------------------------------------------- 名称：基于单片机的语音录放系统 编写：于吉刚 日期：2013.4 修改：无 内容：整个软件的C程序源代码 ------------------------------------------------*/ //液晶驱动没加入呢 #include <reg52.h> //包含头文件，一般情况不需要改动，头文件包含特殊功能寄存器的定义 #include <intrins.h> //汇编函数指令 //#include "ISD4004_drive.h" //ISD4004语音芯片驱动 //#include "LCD_drive.h" //1602液晶驱动 sbit K1 = P3^4; //K1键 模式选择按键 sbit K2 = P3^5; //K2键 录音或放音按键,count增加 sbit K3 = P3^6; //K3键 录音或放音按键,count减少 sbit K4 = P3^7; //K4键 播放键 unsigned int keystate; //模式状态 unsigned char ovflog; //溢出声明 unsigned char disp_buf[8]={0}; //显示缓冲 unsigned char code line3_data[] = {"Recording Voice"}; //定义第一行显示的字符 unsigned char code line4_data[]= {"Num:"}; unsigned char code line5_data[] = {"Welcome yujigang"}; unsigned char code line6_data[] = {"Graduate Design"}; sbit BEEP=P1^0; //定义蜂鸣器 bit K1_FLAG=0; // 定义按键标志位,当按下K1时,该位置1,未按下时,该位为0 //unsigned char disp_buf_time[6]={0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; //定义显示缓冲单元 unsigned char disp_buf1[2]={0x00,0x00}; //定义显示缓冲单元,并赋值 unsigned char code addh_tab[73]={00,00,01,01,01,01,01,01,01,01,01,01,01,01,01,01,01, 02,02,02,02,02,02,02,02,02,02,02,02,02,02,02, 03,03,03,03,03,03,03,03,03,03,03,03,03,03,03, 04,04,04,04,04,04,04,04,04,04,04,04,04,04,04, 05,05,05,05,05,05,05,05,05,05,05 };//ISD4004高位地址表 unsigned char code addl_tab[73]={00,22,00,07,14,21,28,35,42,49,56,63,70,77,84,91,98, 00,07,14,21,28,35,42,49,56,63,70,77,84,91,98, 00,07,14,21,28,35,42,49,56,63,70,77,84,91,98, 00,07,14,21,28,35,42,49,56,63,70,77,84,91,98, 00,07,14,21,28,35,42,49,56,63,70 };//ISD4004低位地址表 unsigned char count=1; //站计数器,初始值1 /*------------------------------------------------ 函数声明 ------------------------------------------------*/ void Delay_ms(unsigned int xms); //void time_char_disp(); /*------------------------------------------------ 液晶驱动程序 ------------------------------------------------*/ //#include <reg52.h> //#include <intrins.h> sbit LCD_RS=P3^2; sbit LCD_RW=P3^1 ; sbit LCD_EN=P3^0; void Delay_ms(unsigned int xms) ; bit lcd_busy(); void lcd_wcmd(unsigned char cmd); void lcd_wdat(unsigned char dat) ; void lcd_clr() ; void lcd_init() ; /********LCD判忙函数********/ bit lcd_busy() { bit result; LCD_RS = 0; LCD_RW = 1; LCD_EN = 1; _nop_(); _nop_(); _nop_(); _nop_(); result = (bit)(P2&0x80); LCD_EN = 0; return result; } /********写指令寄存器IR函数********/ void lcd_wcmd(unsigned char cmd) { while(lcd_busy()); LCD_RS = 0; LCD_RW = 0; LCD_EN = 0; _nop_(); _nop_(); P2 = cmd; _nop_(); _nop_(); _nop_(); _nop_(); LCD_EN = 1; _nop_(); _nop_(); _nop_(); _nop_(); LCD_EN = 0; } /********写寄存器DR函数********/ void lcd_wdat(unsigned char dat) { while(lcd_busy()); LCD_RS = 1; LCD_RW = 0; LCD_EN = 0; P2 = dat; _nop_(); _nop_(); _nop_(); _nop_(); LCD_EN = 1; _nop_(); _nop_(); _nop_(); _nop_(); LCD_EN = 0; } /********LCD清屏函数********/ void lcd_clr() { lcd_wcmd(0x01); //清楚LCD显示内容 Delay_ms(5); } /********LCD初始化函数********/ void lcd_init() { Delay_ms(15); //等待LCD电源稳定 lcd_wcmd(0x38); //16*2显示,5*7点阵,8位数据 Delay_ms(5); lcd_wcmd(0x38); Delay_ms(5); lcd_wcmd(0x38); Delay_ms(5); lcd_wcmd(0x0c); //显示开,关光标 Delay_ms(5); lcd_wcmd(0x06); //移动光标 Delay_ms(5); lcd_wcmd(0x01); //清楚LCD显示内容 Delay_ms(5);