LCD160128中文顯示溫度與時間

1、附件1：學(xué) 號： 課 程 設(shè) 計(jì)題 目lcd160128中文顯示溫度與時間學(xué) 院計(jì)信學(xué)院專 業(yè)自動化班 級三班學(xué)生姓名陳強(qiáng)指導(dǎo)教師劉傳文2011年12月16日重慶工商大學(xué)課程設(shè)計(jì)成績評定表學(xué)院：計(jì)信學(xué)院 班級： 2009級 學(xué)生姓名：陳強(qiáng) 學(xué)號：2009133351 項(xiàng)目分值優(yōu)秀(100x90)良好(90x80)中等(80x70)及格(70x60)不及格(x2.0v之前，rst必須保持低電平。只有在sclk為低電平時，才能將rst置為高電平。i/o為串行數(shù)據(jù)輸入輸出端(雙向)，后面有詳細(xì)說明。sclk為時鐘輸入端。 下圖為ds1302的引腳功能圖： ds1302的內(nèi)部結(jié)構(gòu)如下圖所示，主要組成部

2、分為：移位寄存器、控制邏輯、振蕩器、實(shí)時時鐘以及ram。雖然數(shù)據(jù)分成兩種，但是對單片機(jī)的程序而言，其實(shí)是一樣的，就是對特定的地址進(jìn)行讀寫操作。ds1302的內(nèi)部結(jié)構(gòu)圖ds1302工作時為了對任何數(shù)據(jù)傳送進(jìn)行初始化，需要將復(fù)位腳（rst）置為高電平且將8位地址和命令信息裝入移位寄存器。數(shù)據(jù)在時鐘（sclk）的上升沿串行輸入，前8位指定訪問地址，命令字裝入移位寄存器后，在之后的時鐘周期，讀操作時輸出數(shù)據(jù)，寫操作時輸出數(shù)據(jù)。時鐘脈沖的個數(shù)在單字節(jié)方式下為8+8（8位地址+8位數(shù)據(jù)），在多字節(jié)方式下為8加最多可達(dá)248的數(shù)據(jù)。3、軟件系統(tǒng)3、1程序設(shè)計(jì)本文主要內(nèi)容是利用at89c51單片機(jī)與160*1

3、28的液晶、ds18b20和ds1302組合設(shè)計(jì)的顯示溫度與時間系統(tǒng)，在160*128的液晶上顯示當(dāng)前的時間、日期和ds18b20中的溫度值。當(dāng)溫度超過上下限時，并用led警示。3、2 ds8b20流程圖開始初始化ds18b20應(yīng)答脈沖發(fā)起readonebyte的命令發(fā)起writeonebyte的命令延時4s等待溫度轉(zhuǎn)換完成初始化ds18b20應(yīng)答脈沖發(fā)起read_temperature命令讀取第一二字節(jié)即為溫度數(shù)據(jù)否是否是3、3 ds1302流程圖3、4 總流程圖4、系統(tǒng)運(yùn)行環(huán)境及注意事項(xiàng)4、1 系統(tǒng)運(yùn)行環(huán)境windows xp ，windows 7proteus 7.7 sp2keil u

4、v2 2.124、2 注意事項(xiàng)at89c51單片機(jī)，p0口輸出時，必須使用上拉電阻，提高電壓，否則無法得到輸出結(jié)果。5、結(jié)論本文主要內(nèi)容是利用at89c51單片機(jī)與160*128的液晶、ds18b20和ds1302組合設(shè)計(jì)的顯示溫度與時間系統(tǒng)，在160*128的液晶上顯示當(dāng)前的時間、日期和ds18b20中的溫度值。當(dāng)溫度超過上下限時，并用led警示。此次課程設(shè)計(jì)能夠滿足老師要求的基本功能，能夠正確顯示當(dāng)前的時間，星期，日期。ds18b20的溫度范圍為-55度到128度，次課程設(shè)計(jì)能夠正確顯示ds18b20的溫度。并且在這基礎(chǔ)上還加了溫度警示功能，當(dāng)溫度小于設(shè)定的-20度和大于100度時，led

5、燈就會自動點(diǎn)亮，當(dāng)溫度回歸到-20度和100度之間時，led燈自動熄滅。本來該課程設(shè)計(jì)還可以增加設(shè)置警示溫度值的功能，但是由于時間問題就沒有加進(jìn)去，有點(diǎn)遺憾?；仡櫰鸫舜螁纹瑱C(jī)課程設(shè)計(jì)，至今我仍感慨頗多。從理論到實(shí)踐的過程可以說得是苦多于甜，但是可以學(xué)到很多很多的的東西，同時不僅可以鞏固了以前所學(xué)過的知識，而且學(xué)到了很多在書本上所沒有學(xué)到過的知識。通過這次課程設(shè)計(jì)使我懂得了理論與實(shí)際相結(jié)合是很重要的，只有理論知識是遠(yuǎn)遠(yuǎn)不夠的，只有把所學(xué)的理論知識與實(shí)踐相結(jié)合起來，從理論中得出結(jié)論，才能真正為社會服務(wù)，從而提高自己的實(shí)際動手能力和獨(dú)立思考的能力。參考文獻(xiàn)1 侯玉寶等基于profuse的51系列單片

6、機(jī)設(shè)計(jì)與仿真北京：電子工業(yè)出版社，20082 李朝青單片機(jī)原理及接口技術(shù)北京：北京航空航天大學(xué)出版社，20063 朱清慧等profuse電子線路設(shè)計(jì)、制版與仿真北京：清華大學(xué)出版社，20085 張毅剛.單片機(jī)原理極其應(yīng)用.哈爾濱：哈爾濱工業(yè)大學(xué)出版社，20046 彭偉編.單片機(jī)c語言程序設(shè)計(jì)實(shí)訓(xùn)100例-基于8051+proteus仿真m.北京:電子工業(yè)出版社,20107 譚浩強(qiáng)編.c語言設(shè)計(jì)m.北京: 清華大學(xué)出版社,20058 閻石編.數(shù)字電子技術(shù)基礎(chǔ)(第五版)m.北京高等教育出版社,2005附錄附程序源代碼：/-main.c-/內(nèi)含ds1302驅(qū)動程序/-#include #includ

7、e #include #include #define uchar unsigned char#define uint unsigned intextern void cls();extern uchar lcd_initialise();extern uchar display_str_at_xy(uchar x,uchar y,char *fmt ) reentrant;extern uchar code asc_msk96*12; extern uchar current_temp_display_buffer;sbit sda = p10;sbit clk = p11;sbit rst

8、 = p12;sbit hi=p16;sbit lo=p17;uchar tcount=0;/星期的中文對照表char code*weekstable=日,一,二,三,四,五,六;uchar datetime7;char dat_str13;bit ds18b20_is_ok=1; /傳感器正常標(biāo)志/向ds1302寫入一個字節(jié)void write_a_byte_to_ds1302(uchar x) uchar i; for(i=0;i=1; /從ds1302讀取一個字節(jié)uchar get_a_byte_from_ds1302() uchar i,b,t; for(i=0;i=1;t=sda;

9、b|=t7;clk=1;clk=0; return b/16*10+b%16; /從ds1302指定位置讀數(shù)據(jù)uchar read_data(uchar addr) uchar dat; rst=0;clk=0;rst=1; write_a_byte_to_ds1302(addr); dat=get_a_byte_from_ds1302(); clk=1;rst=0; return dat; /讀取當(dāng)前時間void gettime() uchar i; for(i=0;i(20-1) lo=1;elselo=0; else sprintf(dat_str,%c%c%c.%c,t/100+0,t

10、/10%10+0,t%10+0,(a%16)*10/16+0); display_str_at_xy(16,104,dat_str); if(t(100-1) hi=1; elsehi=0; /主程序 void main() lcd_initialise(); read_temperature(); delay(50000); delay(50000); ie=0x82; hi=0;lo=0; th0=-50000/256; tl0=-50000%256; tr0=1; display_str_at_xy(16,88,當(dāng)前溫度:); display_str_at_xy(60,104,); wh

11、ile(1);/-lcd_160128.c-/lcd_160128的c文件,內(nèi)含控制函數(shù)/-#include #include #include #include #include #include #include #define asc_chr_width 8#define asc_chr_height 12#define hz_chr_height 12#define hz_chr_width 12 sbit reset=p33;uchar code lcd_width = 20;uchar code lcd_height = 128;uchar code asc_msk96*12=0x

12、00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/ 0x00,0x30,0x78,0x78,0x78,0x30,0x30,0x00,0x30,0x30,0x00,0x00,/ !0x00,0x66,0x66,0x66,0x24,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/ 0x00,0x6c,0x6c,0xfe,0x6c,0x6c,0x6c,0xfe,0x6c,0x6c,0x00,

13、0x00,/ #0x30,0x30,0x7c,0xc0,0xc0,0x78,0x0c,0x0c,0xf8,0x30,0x30,0x00,/ $0x00,0x00,0x00,0xc4,0xcc,0x18,0x30,0x60,0xcc,0x8c,0x00,0x00,/ %0x00,0x70,0xd8,0xd8,0x70,0xfa,0xde,0xcc,0xdc,0x76,0x00,0x00,/ &0x00,0x30,0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/ 0x00,0x0c,0x18,0x30,0x60,0x60,0x60,0x30,0

14、x18,0x0c,0x00,0x00,/ (0x00,0x60,0x30,0x18,0x0c,0x0c,0x0c,0x18,0x30,0x60,0x00,0x00,/ )0x00,0x00,0x00,0x66,0x3c,0xff,0x3c,0x66,0x00,0x00,0x00,0x00,/ *0x00,0x00,0x00,0x18,0x18,0x7e,0x18,0x18,0x00,0x00,0x00,0x00,/ +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x38,0x38,0x60,0x00,/ ,0x00,0x00,0x00,0x00,0x00,0

15、xfe,0x00,0x00,0x00,0x00,0x00,0x00,/ -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x38,0x38,0x00,0x00,/ .0x00,0x00,0x02,0x06,0x0c,0x18,0x30,0x60,0xc0,0x80,0x00,0x00,/ /0x00,0x7c,0xc6,0xce,0xde,0xd6,0xf6,0xe6,0xc6,0x7c,0x00,0x00,/ 00x00,0x10,0x30,0xf0,0x30,0x30,0x30,0x30,0x30,0xfc,0x00,0x00,/ 10x00,0x78,0

16、xcc,0xcc,0x0c,0x18,0x30,0x60,0xcc,0xfc,0x00,0x00,/ 20x00,0x78,0xcc,0x0c,0x0c,0x38,0x0c,0x0c,0xcc,0x78,0x00,0x00,/ 30x00,0x0c,0x1c,0x3c,0x6c,0xcc,0xfe,0x0c,0x0c,0x1e,0x00,0x00,/ 40x00,0xfc,0xc0,0xc0,0xc0,0xf8,0x0c,0x0c,0xcc,0x78,0x00,0x00,/ 50x00,0x38,0x60,0xc0,0xc0,0xf8,0xcc,0xcc,0xcc,0x78,0x00,0x00

17、,/ 60x00,0xfe,0xc6,0xc6,0x06,0x0c,0x18,0x30,0x30,0x30,0x00,0x00,/ 70x00,0x78,0xcc,0xcc,0xec,0x78,0xdc,0xcc,0xcc,0x78,0x00,0x00,/ 80x00,0x78,0xcc,0xcc,0xcc,0x7c,0x18,0x18,0x30,0x70,0x00,0x00,/ 90x00,0x00,0x00,0x38,0x38,0x00,0x00,0x38,0x38,0x00,0x00,0x00,/ :0x00,0x00,0x00,0x38,0x38,0x00,0x00,0x38,0x38

18、,0x18,0x30,0x00,/ ;0x00,0x0c,0x18,0x30,0x60,0xc0,0x60,0x30,0x18,0x0c,0x00,0x00,/ 0x00,0x78,0xcc,0x0c,0x18,0x30,0x30,0x00,0x30,0x30,0x00,0x00,/ ?0x00,0x7c,0xc6,0xc6,0xde,0xde,0xde,0xc0,0xc0,0x7c,0x00,0x00,/ 0x00,0x30,0x78,0xcc,0xcc,0xcc,0xfc,0xcc,0xcc,0xcc,0x00,0x00,/ a0x00,0xfc,0x66,0x66,0x66,0x7c,0

19、x66,0x66,0x66,0xfc,0x00,0x00,/ b0x00,0x3c,0x66,0xc6,0xc0,0xc0,0xc0,0xc6,0x66,0x3c,0x00,0x00,/ c0x00,0xf8,0x6c,0x66,0x66,0x66,0x66,0x66,0x6c,0xf8,0x00,0x00,/ d0x00,0xfe,0x62,0x60,0x64,0x7c,0x64,0x60,0x62,0xfe,0x00,0x00,/ e0x00,0xfe,0x66,0x62,0x64,0x7c,0x64,0x60,0x60,0xf0,0x00,0x00,/ f0x00,0x3c,0x66,0

20、xc6,0xc0,0xc0,0xce,0xc6,0x66,0x3e,0x00,0x00,/ g0x00,0xcc,0xcc,0xcc,0xcc,0xfc,0xcc,0xcc,0xcc,0xcc,0x00,0x00,/ h0x00,0x78,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x78,0x00,0x00,/ i0x00,0x1e,0x0c,0x0c,0x0c,0x0c,0xcc,0xcc,0xcc,0x78,0x00,0x00,/ j0x00,0xe6,0x66,0x6c,0x6c,0x78,0x6c,0x6c,0x66,0xe6,0x00,0x00,/ k0

21、x00,0xf0,0x60,0x60,0x60,0x60,0x62,0x66,0x66,0xfe,0x00,0x00,/ l0x00,0xc6,0xee,0xfe,0xfe,0xd6,0xc6,0xc6,0xc6,0xc6,0x00,0x00,/ m0x00,0xc6,0xc6,0xe6,0xf6,0xfe,0xde,0xce,0xc6,0xc6,0x00,0x00,/ n0x00,0x38,0x6c,0xc6,0xc6,0xc6,0xc6,0xc6,0x6c,0x38,0x00,0x00,/ o0x00,0xfc,0x66,0x66,0x66,0x7c,0x60,0x60,0x60,0xf0

22、,0x00,0x00,/ p0x00,0x38,0x6c,0xc6,0xc6,0xc6,0xce,0xde,0x7c,0x0c,0x1e,0x00,/ q0x00,0xfc,0x66,0x66,0x66,0x7c,0x6c,0x66,0x66,0xe6,0x00,0x00,/ r0x00,0x78,0xcc,0xcc,0xc0,0x70,0x18,0xcc,0xcc,0x78,0x00,0x00,/ s0x00,0xfc,0xb4,0x30,0x30,0x30,0x30,0x30,0x30,0x78,0x00,0x00,/ t0x00,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc

23、,0xcc,0xcc,0x78,0x00,0x00,/ u0x00,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0x78,0x30,0x00,0x00,/ v0x00,0xc6,0xc6,0xc6,0xc6,0xd6,0xd6,0x6c,0x6c,0x6c,0x00,0x00,/ w0x00,0xcc,0xcc,0xcc,0x78,0x30,0x78,0xcc,0xcc,0xcc,0x00,0x00,/ x0x00,0xcc,0xcc,0xcc,0xcc,0x78,0x30,0x30,0x30,0x78,0x00,0x00,/ y0x00,0xfe,0xce,0x98

24、,0x18,0x30,0x60,0x62,0xc6,0xfe,0x00,0x00,/ z0x00,0x3c,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x3c,0x00,0x00,/ 0x00,0x00,0x80,0xc0,0x60,0x30,0x18,0x0c,0x06,0x02,0x00,0x00,/ 0x00,0x3c,0x0c,0x0c,0x0c,0x0c,0x0c,0x0c,0x0c,0x3c,0x00,0x00,/ 0x10,0x38,0x6c,0xc6,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/ 0x00,0x0

25、0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0x00,/ _0x30,0x30,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/ 0x00,0x00,0x00,0x00,0x78,0x0c,0x7c,0xcc,0xcc,0x76,0x00,0x00,/ a0x00,0xe0,0x60,0x60,0x7c,0x66,0x66,0x66,0x66,0xdc,0x00,0x00,/ b0x00,0x00,0x00,0x00,0x78,0xcc,0xc0,0xc0,0xcc,0x78,0x00,0x

26、00,/ c0x00,0x1c,0x0c,0x0c,0x7c,0xcc,0xcc,0xcc,0xcc,0x76,0x00,0x00,/ d0x00,0x00,0x00,0x00,0x78,0xcc,0xfc,0xc0,0xcc,0x78,0x00,0x00,/ e0x00,0x38,0x6c,0x60,0x60,0xf8,0x60,0x60,0x60,0xf0,0x00,0x00,/ f0x00,0x00,0x00,0x00,0x76,0xcc,0xcc,0xcc,0x7c,0x0c,0xcc,0x78,/ g0x00,0xe0,0x60,0x60,0x6c,0x76,0x66,0x66,0x

27、66,0xe6,0x00,0x00,/ h0x00,0x18,0x18,0x00,0x78,0x18,0x18,0x18,0x18,0x7e,0x00,0x00,/ i0x00,0x0c,0x0c,0x00,0x3c,0x0c,0x0c,0x0c,0x0c,0xcc,0xcc,0x78,/ j0x00,0xe0,0x60,0x60,0x66,0x6c,0x78,0x6c,0x66,0xe6,0x00,0x00,/ k0x00,0x78,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x7e,0x00,0x00,/ l0x00,0x00,0x00,0x00,0xfc,0x

28、d6,0xd6,0xd6,0xd6,0xc6,0x00,0x00,/ m0x00,0x00,0x00,0x00,0xf8,0xcc,0xcc,0xcc,0xcc,0xcc,0x00,0x00,/ n0x00,0x00,0x00,0x00,0x78,0xcc,0xcc,0xcc,0xcc,0x78,0x00,0x00,/ o0x00,0x00,0x00,0x00,0xdc,0x66,0x66,0x66,0x66,0x7c,0x60,0xf0,/ p0x00,0x00,0x00,0x00,0x76,0xcc,0xcc,0xcc,0xcc,0x7c,0x0c,0x1e,/ q0x00,0x00,0x

29、00,0x00,0xec,0x6e,0x76,0x60,0x60,0xf0,0x00,0x00,/ r0x00,0x00,0x00,0x00,0x78,0xcc,0x60,0x18,0xcc,0x78,0x00,0x00,/ s0x00,0x00,0x20,0x60,0xfc,0x60,0x60,0x60,0x6c,0x38,0x00,0x00,/ t0x00,0x00,0x00,0x00,0xcc,0xcc,0xcc,0xcc,0xcc,0x76,0x00,0x00,/ u0x00,0x00,0x00,0x00,0xcc,0xcc,0xcc,0xcc,0x78,0x30,0x00,0x00,/ v0x00,0x00,0x00,0x00,0xc6,0xc6,0xd6,0xd6,0x6c,0x6c,0x00,0x00,/ w0x00,0x00,0x00,0x00,0xc6,0x6c,0x38,0x38,0x6c,0xc6,0x00,0x00,/ x0x00,0x00,0x00,0x00,0x66,0x66,0x66,0x66,0x3c,0x0c,0x18,0xf0,/ y0x00,0x00,0x00,0x00,0xfc,0x8c,0x18,0x60,0xc4,0xfc,0x00,0x00,/ z0x00,0x1c,0x30,0x3