US-100超聲波測距NOKIA5110顯示距離小于20厘米報警

1、隨便玩玩，有點粗糙僅供參考#include <reg51.h>#include <intrins.h>#define uchar unsigned char #define uint unsigned int sbit beep=P15;sbit ce = P20; /片選sbit rst = P21; /復位,0復位sbit dc = P22; /1寫數(shù)據(jù)，0寫指令sbit din = P23; /數(shù)據(jù)sbit clk = P24; /時鐘sbit RX = P01;sbit TX = P02;unsigned int time=0;unsigned int time

2、r=0;unsigned char posit=0;unsigned long S=0;bit flag =0; unsigned char code hanzi=/*"溫",*/ 0x10,0x22,0x64,0x0C,0x80,0x00,0xFE,0x92, 0x92,0x92,0x92,0x92,0xFF,0x02,0x00,0x00, 0x04,0x04,0xFE,0x01,0x40,0x7E,0x42,0x42, 0x7E,0x42,0x7E,0x42,0x42,0x7E,0x40,0x00,/*"度",*/ 0x00,0x00,0xFC,0x

3、24,0x24,0x24,0xFC,0xA5, 0xA6,0xA4,0xFC,0x24,0x34,0x26,0x04,0x00, 0x40,0x20,0x9F,0x80,0x42,0x42,0x26,0x2A, 0x12,0x2A,0x26,0x42,0x40,0xC0,0x40,0x00,/*- 文字: 時 -*/*- 宋體_GB231212; 此字體下對應的點陣為：寬x高=16x16 -*/ 0x00,0xFC,0x84,0x84,0x84,0xFE,0x14,0x10, 0x90,0x10,0x10,0x10,0xFF,0x10,0x10,0x00, 0x00,0x3F,0x10,0x1

4、0,0x10,0x3F,0x00,0x00, 0x00,0x23,0x40,0x80,0x7F,0x00,0x00,0x00,/*- 文字: 間 -*/*- 宋體_GB231212; 此字體下對應的點陣為：寬x高=16x16 -*/ 0x00,0xF8,0x01,0x02,0xF6,0x10,0x12,0x12, 0x12,0x12,0xFA,0x12,0x02,0xFF,0x02,0x00, 0x00,0xFF,0x00,0x00,0x3F,0x11,0x11,0x11, 0x11,0x11,0x3F,0x40,0x80,0x7F,0x00,0x00,/*"距"*/ 0x

5、00,0x3E,0x22,0xE2,0x22,0x3E,0x00,0xFE, 0x22,0x22,0x22,0x22,0xF3,0x22,0x00,0x00, 0x20,0x7F,0x20,0x3F,0x12,0x12,0x00,0x7F, 0x42,0x42,0x42,0x42,0x47,0x60,0x40,0x00,/"離", 0x04,0x04,0x04,0xF4,0x04,0x8C,0x55,0x26, 0x54,0x8C,0x04,0xF4,0x04,0x06,0x04,0x00, 0x00,0xFC,0x04,0x05,0x25,0x35,0x2D,0x27,

6、0x25,0x35,0x25,0x45,0x84,0x7E,0x04,0x00,/"：", 0x00,0x00,0x00,0x00,0x80,0xC0,0xC0,0x80, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x31,0x7B,0x7B,0x31, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/"一", 0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80, 0x80,0x80,0x80,0x80,0x80

7、,0xC0,0x80,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00; unsigned char code shuzi = /00xF8,0x04,0x04,0x04,0xF8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,/10x00,0x08,0xFC,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,/20x18,0x84,0x44,0x44,0x38,0x00,0x03,0x02,0x02,0x0

8、2,0x02,0x00,/30x88,0x04,0x24,0x24,0xD8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,/40xC0,0xB0,0x88,0xFC,0x80,0x00,0x00,0x00,0x00,0x03,0x00,0x00,/50x3C,0x14,0x14,0x14,0xE4,0x00,0x01,0x02,0x02,0x02,0x01,0x00,/60xF8,0x24,0x24,0x24,0xC8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,/70x04,0x04,0x04,0xE4,0x1C,0x00,0x00,0x0

9、0,0x03,0x00,0x00,0x00,/80xD8,0x24,0x24,0x24,0xD8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,/90x38,0x44,0x44,0x44,0xF8,0x00,0x01,0x02,0x02,0x02,0x01,0x00,/'/0x00,0x00,0x04,0x0A,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/C/0xF8,0x04,0x04,0x04,0x98,0x00,0x01,0x02,0x02,0x02,0x01,0x00,/./0x00,0x00,0x00,0x00,0

10、x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,/:/0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,/T/0x04,0x04,0xFC,0x04,0x04,0x00,0x00,0x00,0x03,0x00,0x00,0x00; / void delay_1us(void) unsigned int i; for(i=0;i<1000;i+); void delayus(uint z) /微妙級延時uint y;for(y=z;y>0;y-);void delayms(uint z

11、) /毫秒級延時uint x,y;for(y=z;y>0;y-) for(x=1400;x>0;x-);/* 函數(shù)名稱：LCD_write_byte函數(shù)功能：模擬SPI接口時序?qū)憯?shù)據(jù)/命令LCD入口參數(shù)：data ：寫入的數(shù)據(jù)； command ：寫數(shù)據(jù)/命令選擇；出口參數(shù)：無 備 注： */void LCD_write_byte(unsigned char dat,unsigned char command) unsigned char i; ce=0;/5110片選有效，允許輸入數(shù)據(jù) if(command=0) /寫命令 dc=0;else dc=1; /寫數(shù)據(jù)for(i=0;

12、i<8;i+) if(dat&0x80)/傳送8bit數(shù)據(jù) din=1; else din=0; clk=0; dat=dat<<1; clk=1; ce=1; /禁止5110/*函數(shù)名稱：LCD_clear函數(shù)功能：清屏*/void LCD_clear(void) unsigned int i; LCD_write_byte(0x0c, 0); LCD_write_byte(0x80, 0); for (i=0; i<504; i+) LCD_write_byte(0, 1); /* 函數(shù)名稱：LCD_init函數(shù)功能：5110初始化入口參數(shù)：無出口參數(shù)：無

13、備 注： */void LCD_init(void) rst=0; / 產(chǎn)生一個讓LCD復位的低電平脈沖 delay_1us(); rst=1; ce=0; / 關(guān)閉LCD delay_1us(); ce=1; / 使能LCD delay_1us(); LCD_write_byte(0x21,0); / 使用擴展命令設置LCD模式 LCD_write_byte(0xc8,0); / 設置液晶偏置電壓 LCD_write_byte(0x06,0); / 溫度校正 LCD_write_byte(0x13,0); / 1:48 LCD_write_byte(0x20,0); / 使用基本命令，V=0

14、，水平尋址 LCD_clear(); / 清屏 LCD_write_byte(0x0c,0); / 設定顯示模式，正常顯示 ce=0; /關(guān)閉LCD/* 函數(shù)名稱：LCD_set_XY函數(shù)功能：設置LCD坐標函數(shù)入口參數(shù)：X ：083 Y ：05出口參數(shù)：無 備 注： */void LCD_set_XY(unsigned char X,unsigned char Y) LCD_write_byte(0x40|Y,0); / column LCD_write_byte(0x80|X,0); / row /*-LCD_write_shu: 顯示6（寬）*12（高）點陣列數(shù)字字母符號等半角類輸入?yún)?shù)

15、：c：顯示的字符；編寫日期：20140918 -*/void LCD_write_shu(unsigned char row, unsigned char page,unsigned char c) /row:列 page:頁 dd:字符unsigned char i; LCD_set_XY(row*6, page);/ 列，頁 for(i=0; i<6;i+) LCD_write_byte(shuzic*12+i,1); LCD_set_XY(row*6, page+1);/ 列，頁 for(i=6; i<12;i+) LCD_write_byte(shuzic*12+i,1);

16、 /*LCD_write_hanzi: 顯示16（寬）*16（高）點陣列數(shù)字字母符號等半角類輸入?yún)?shù)：c：顯示的字符；編寫日期：20140918 */void LCD_write_hanzi(unsigned char row, unsigned char page,unsigned char c) /row:列 page:頁 dd:字符 unsigned char i; LCD_set_XY(row*8, page);/ 列，頁 for(i=0; i<16;i+) LCD_write_byte(hanzic*32+i,1); LCD_set_XY(row*8, page+1);/ 列，

17、頁 for(i=16; i<32;i+) LCD_write_byte(hanzic*32+i,1); void Conut(void) time=TH0*256+TL0; TH0=0; TL0=0; S=(time*1.7)/100; /算出來是CM if(S>=700)|flag=1) /超出測量范圍顯示“-” flag=0; LCD_write_hanzi(8,0,7); /> LCD_write_hanzi(10,0,7); /> LCD_write_hanzi(12,0,7); /> else LCD_write_shu(8,0,S/100); />

18、; LCD_write_shu(10,0,S%100/10); /> LCD_write_shu(12,0,S%10); /> void zd0() interrupt 1 /T0中斷用來計數(shù)器溢出,超過測距范圍 flag=1; /中斷溢出標志 /*/ void zd3() interrupt 3 /T1中斷用來掃描數(shù)碼管和計800MS啟動模塊 TH1=0xf8; TL1=0x30;/ Display(); timer+; if(timer>=400) timer=0; TX=1; /800MS 啟動一次模塊 _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_()