用单片机mege16控制的音乐播放原理图

30章C51入门教程，keil c51是keil公司设计的为单片机编程的编译软件-C51 Chapter 30 Getting Started Guide, keil c51 is keil designed compilers for single-chip programming software

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.

两相四线步进电机驱动,控制程序.C语言编写-Two-phase four-wire stepper motor driver and control program. C language

S-35390A是可以在超低消耗电流、宽工作电压范围内工作的2线CMOS实时时钟IC。工作电 压为1.3 ~ 5.5 V、可适用于从主电源电压到备用电池电压的宽幅电源电压。通过0.25 μA的计 时消耗电流和宽范围的计时电源电压，可大幅度地改善电池的持续时间。在使用备用电池工 作的系统中，内置的自由寄存器可作为用户备用存储器来使用。在主电源切断前存储在寄存 器中的信息，可在电压恢复后的任何时候读出。 本产品因为内置了时钟校正功能，所以可以在很宽的范围内校正因振荡电路的频率偏差所导 致的时钟数据的提前或滞后。通过此功能和温度传感器的结合，可根据温度变化来对时钟进 行校正，从而实现不受环境温度影响的高精度的计时功能-err

实现公历与农历的转换一般采用查表法按日查表是速度最快的方法但51 单片机寻址能力有限不可能采用 按日查表的方法除按日查外我们可以通过按月查表和按年查表的方法再通过适当的计算来确定公历日所对应的 农历日期本文采用的是按年查表法最大限度地减少表格所占的程序空间-Limited can not be used In addition to a daily look-up table method of daily things that we can search through monthly and annual look-up table look-up table method and through the appropriate calculations to determine the calendar day corresponding to the Lunar date of this paper is the annual table look-up table method to minimize the space occupied by program

报警测试程序，用于测试设备中的报警信息，进行和用户之间的显示和对话操作。-Alarm testing procedures, test equipment for the alarm information, and user display and dialogue between the operator.

本程序可实现，四个16*16级联LED点阵的汉字循环左移显示。-This procedure can be realized, four of 16* 16 cascaded LED dot matrix display of Chinese characters to the left circle.

用于C51上的modbus协议，经测试可运行，但还不完善-C51 for the Modbus protocol, the tests will be run, but still not perfect

Proteus的数码管仿真电路，希望对大家有点用，入门级的。-Proteus simulation of the digital control circuit, in the hope that we are a bit used, entry-level.

只能车控制主程序，控制各种硬件，单片机为飞斯卡尔9s12-Vehicles can only control the main program to control a variety of hardware, microcontroller Scalfaro to fly 9s12