超声波测距LCD12864显示.zip_DEMO_LCD_driedqj2_超声波测距

/********************************************************************************* * 【编写时间】： 2014年3月5日 * 【作 者】： 清翔电子:03 * 【版 本】： 1.0 * 【网 站】： http://www.qxmcu.com/ * 【淘宝店铺】： http://qxmcu.taobao.com/ (直销店) http://qx-mcu.taobao.com/ （总店） * 【实验平台】： QX-MINI51 单片机开发板 * 【外部晶振】： 11.0592mhz * 【主控芯片】： STC89C52 * 【编译环境】： Keil μVisio3 * 【程序功能】： LCD12864(St7920/St7921)+超声波测距模块+STC89C52 * 【使用说明】： /* 接线：模块TRIG接 P1.2 ECH0 接P1.1 */ /* RS(CS) 接 P0.7; */ /* RW(SID) 接 P0.6; */ /* E(SCLK) 接 P0.5; */ /* PSB 接 GND 串行模式 **********************************************************************************/ #include <AT89X51.H> #include <intrins.h> //引脚定义 sbit RX = P1 ^ 1; sbit TX = P1 ^ 2; sbit CS = P0 ^ 7; //片选 高电平有效 单片LCD使用时可固定高电平 sbit SID = P0 ^ 6; //数据 sbit SCLK = P0 ^ 5; //时钟 sbit PSB = P0 ^ 4; //PSB //Function Definition　函数声明 void Delay(int num); void Init_DS18B20(void); unsigned char ReadOneChar(void); void WriteOneChar(unsigned char dat); unsigned int ReadTemperature(void); void clock_out(unsigned char dd); unsigned char clock_in(void); unsigned char read_clock(unsigned char ord); void write_clock(unsigned char ord, unsigned char dd); void Disp(void); void id_case1_key(void); void id_case2_key(void); void Set_time(unsigned char sel,bit sel_1); void Timer0_Init(void); void Init_1302(void); void Set_Bell(unsigned char sel, bit sel_1); void Bell(void); //12864 void Write_char(bit start, unsigned char ddata); void Send_byte(unsigned char bbyte); void Delaynms(unsigned int di); void Lcd_init(void); void Disp_img(unsigned char *img); void LCD_Write_string(unsigned char X,unsigned char Y,unsigned char *s); void LCD_set_xy( unsigned char x, unsigned char y ); unsigned char code num[]={"0123456789 :.-"}; unsigned char code waves[]={"超声波测距系统"}; unsigned char code znwk[] ={"清翔电子科技 "}; unsigned char code CM[] = {"M"}; unsigned int time=0; long S=0; bit flag =0; unsigned char disbuff[4] ={ 0,0,0,0,}; unsigned char code logo[]={ /*-- 调入了一幅图像：logo.bmp -- */ /*-- 宽度x高度=128x64 欢迎使用本产品LOGO --*/ /*-- 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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, }; /******************************************************************************/ void Lcd_init(void) //初始化LCD { PSB = 0; De