这是在51单片机上实现的完整功能的计算器源代码，用c写成，有利于帮助我们更好的学习单片机的开发...

使用ATmage8制作的USB下载线，采用软件模拟时序-ATmage8 produced by the use of USB download cable, using simulation software Sequencers

奉上刚做好的测温小制作--基于DS18B20传感器 今个学期刚学了单片机，学期末的时候老师要求每个人都做个有关单片机应用的小制作，而我的作品就是这个。DS18B20挺好用的，功能很强（我用到的只是最简单的）。可惜现在没时间（要考试！），等下吧，考完后我再努力将这个小制作的功能加强，特别是想做到能自动识别传感器ID号的功能。 我知道有很多人都对DS18B20很感兴趣，借此奉上源代码，实物我已经做好了，测温很稳定。希望对大家有帮助。-Thermometry of small production-- DS18B20 sensor based on this semester just learning the microcontroller, the end of the teacher asked each one of the SCM application to be a small production, and I was in the works. DS18B20 very good use, and highly functional (I use only the most simple). Unfortunately, there is no time (to test!) , And so are you, I again after taking the efforts of the small production of functional strengthened, in particular to achieve recognition sensor can automatically ID function. I know that many people are very interested in right DS18B20 to enclose the source code, in-kind I have done well, very stable temperature measurement. We want to help.

很好的用io口模拟串口的程序，内带仿真文件，可随意修改，已经在产品中应用，可放心使用。-Io mouth with a very good simulation of serial procedures, within the simulation with documents, can be freely modified, has been applied in the product can be assured that use.

带有存储器功能的数字温度计－DS1624技术应用。proteus的实践例子 既有电路又有keil里的程序 asm or c-With memory function-DS1624 digital thermometer applications. Proteus practice examples of both circuit and keil procedures in asm or c

C语言的KEY4X4的矩阵键盘,已经调试成功.可以很便移植,是本人自己写的.-C language KEY4X4 matrix keyboard, has been successful debugging. Can be transplanted, it is I wrote it myself.

电压测试，数字电压表，利用动态显示模块显示-Voltage testing, digital voltmeter, using dynamic display module display

pc机与rs232串口的通讯C51源程序。-pc computer and RS232 serial communications C51 source.

S3C2440 arm9芯片上RTC的测试程序，可以测试RTC是否正确运行，以及能对RTC进行时间设置。-RTC chip S3C2440 arm9 test procedures to test whether the RTC correctly, and be able to set the RTC time.

sja1000与串口通信的程序，用串口通信助手可观察结果-SJA1000 with serial communication procedures, using serial communication assistant can be observed