LCD160128中文显示温度与时间.doc

附件1：学 号： 课 程 设 计题 目lcd160128中文显示温度与时间学 院计信学院专 业自动化班 级三班学生姓名陈强指导教师刘传文2011年12月16日重庆工商大学课程设计成绩评定表学院：计信学院 班级： 2009级 学生姓名：陈强 学号：2009133351 项目分值优秀(100x90)良好(90x80)中等(80x70)及格(70x60)不及格(x2.0v之前，rst必须保持低电平。只有在sclk为低电平时，才能将rst置为高电平。i/o为串行数据输入输出端(双向)，后面有详细说明。sclk为时钟输入端。 下图为ds1302的引脚功能图： ds1302的内部结构如下图所示，主要组成部分为：移位寄存器、控制逻辑、振荡器、实时时钟以及ram。虽然数据分成两种，但是对单片机的程序而言，其实是一样的，就是对特定的地址进行读写操作。ds1302的内部结构图ds1302工作时为了对任何数据传送进行初始化，需要将复位脚（rst）置为高电平且将8位地址和命令信息装入移位寄存器。数据在时钟（sclk）的上升沿串行输入，前8位指定访问地址，命令字装入移位寄存器后，在之后的时钟周期，读操作时输出数据，写操作时输出数据。时钟脉冲的个数在单字节方式下为8+8（8位地址+8位数据），在多字节方式下为8加最多可达248的数据。3、软件系统3、1程序设计本文主要内容是利用at89c51单片机与160*128的液晶、ds18b20和ds1302组合设计的显示温度与时间系统，在160*128的液晶上显示当前的时间、日期和ds18b20中的温度值。当温度超过上下限时，并用led警示。3、2 ds8b20流程图开始初始化ds18b20应答脉冲发起readonebyte的命令发起writeonebyte的命令延时4s等待温度转换完成初始化ds18b20应答脉冲发起read_temperature命令读取第一二字节即为温度数据否是否是3、3 ds1302流程图3、4 总流程图4、系统运行环境及注意事项4、1 系统运行环境windows xp ，windows 7proteus 7.7 sp2keil uv2 2.124、2 注意事项at89c51单片机，p0口输出时，必须使用上拉电阻，提高电压，否则无法得到输出结果。5、结论本文主要内容是利用at89c51单片机与160*128的液晶、ds18b20和ds1302组合设计的显示温度与时间系统，在160*128的液晶上显示当前的时间、日期和ds18b20中的温度值。当温度超过上下限时，并用led警示。此次课程设计能够满足老师要求的基本功能，能够正确显示当前的时间，星期，日期。ds18b20的温度范围为-55度到128度，次课程设计能够正确显示ds18b20的温度。并且在这基础上还加了温度警示功能，当温度小于设定的-20度和大于100度时，led灯就会自动点亮，当温度回归到-20度和100度之间时，led灯自动熄灭。本来该课程设计还可以增加设置警示温度值的功能，但是由于时间问题就没有加进去，有点遗憾。回顾起此次单片机课程设计，至今我仍感慨颇多。从理论到实践的过程可以说得是苦多于甜，但是可以学到很多很多的的东西，同时不仅可以巩固了以前所学过的知识，而且学到了很多在书本上所没有学到过的知识。通过这次课程设计使我懂得了理论与实际相结合是很重要的，只有理论知识是远远不够的，只有把所学的理论知识与实践相结合起来，从理论中得出结论，才能真正为社会服务，从而提高自己的实际动手能力和独立思考的能力。参考文献1 侯玉宝等基于profuse的51系列单片机设计与仿真北京：电子工业出版社，20082 李朝青单片机原理及接口技术北京：北京航空航天大学出版社，20063 朱清慧等profuse电子线路设计、制版与仿真北京：清华大学出版社，20085 张毅刚.单片机原理极其应用.哈尔滨：哈尔滨工业大学出版社，20046 彭伟编.单片机c语言程序设计实训100例-基于8051+proteus仿真m.北京:电子工业出版社,20107 谭浩强编.c语言设计m.北京: 清华大学出版社,20058 阎石编.数字电子技术基础(第五版)m.北京高等教育出版社,2005附录附程序源代码：/-main.c-/内含ds1302驱动程序/-#include #include #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 = p12;sbit hi=p16;sbit lo=p17;uchar tcount=0;/星期的中文对照表char code*weekstable=日,一,二,三,四,五,六;uchar datetime7;char dat_str13;bit ds18b20_is_ok=1; /传感器正常标志/向ds1302写入一个字节void write_a_byte_to_ds1302(uchar x) uchar i; for(i=0;i=1; /从ds1302读取一个字节uchar get_a_byte_from_ds1302() uchar i,b,t; for(i=0;i=1;t=sda; b|=t7;clk=1;clk=0; return b/16*10+b%16; /从ds1302指定位置读数据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; /读取当前时间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+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,当前温度:); display_str_at_xy(60,104,); while(1);/-lcd_160128.c-/lcd_160128的c文件,内含控制函数/-#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=0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,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,0x00,0x00,/ #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,0x18,0x30,0x60,0x60,0x60,0x30,0x18,0x0c,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,/ ,0x00,0x00,0x00,0x00,0x00,0xfe,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,/ 10x00,0x78,0xcc,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,/ 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,/ :0x00,0x00,0x00,0x38,0x38,0x00,0x00,0x38,0x38,0x18,0x30,0x00,/ ;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,0x66,0x66,0x66,0xfc,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,0x66,0xc6,0xc0,0xc0,0xce,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,/ k0x00,0xf0,0x60,0x60,0x60,0x60,0x62,0x66,0x66,0xfe,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,0x60,0x60,0x60,0xf0,0x00,0x00,/ 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,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,0x98,0x18,0x30,0x60,0x62,0xc6,0xfe,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,/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,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,0x78,0x00,0x00,/ 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,0x76,0x66,0x66,0x66,0xe6,0x00,0x00,/ 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,0xd6,0xd6,0xd6,0xd6,0xc6,0x00,0x00,/ 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,/ q0x00,0x00,0x00,0x00,0xec,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