avr单片机的12864Lcd程序，实现文字的嵌入式显示，proteus仿真

读51按键，并将ascii码返回计算机串口调试助手，-Read 51 keys, and return the computer serial port debugging assistant

通过直接读取磁盘扇区的测试程序，开发单片机读卡器的U程序员可以了解FAT16文件系统。

其中的usb端口通信已经作为一个模块来使用，用户只需用以下函数就可以对usb端口进行方便地读写： unsigned char D12_WriteEndpoint(unsigned char endp, unsigned char len, unsigned char * buf) 此为usb端点输出函数，endp是要进行通信的端点，取值为3（普通端点，最大可一次传输16byte）或5（主端点，最大可一次传输64byte）；len为一次输出数据长度；*buf为数据所在位置。 usb端点数据的读操作是由底层函数自动完成的（相关函数为unsigned char D12_ReadEndpoint(unsigned char endp, unsigned char len, unsigned char * buf)； 相应端点为2和4），所读到的数据存于GenEpBuf[]（普通端点）、MainEpBuf[]或EpBuf[]（主端点）中，用户可以直接读取使用。-Usb port communication which has been used as a module, the user can use the following function on the usb port can easily read and write: unsigned char D12_WriteEndpoint (unsigned char endp, unsigned char len, unsigned char* buf) This is the endpoint usb output function, endp is to communicate the endpoint, the value for 3 (common endpoint, the first transmission maximum 16byte) or 5 ( the main endpoint, the first transmission maximum 64byte) len Length of output data for the first time * buf location for data. usb endpoint data is read

利用两个数码管，模拟对时钟信号分频后技术功能，理解数码管的动态显示 其中程序中有动态扫描进程；译码进程；数字技术进程三个进程，也可以实现分块实现-Use of the two digital control, analog signal to the clock frequency after the technical capability, understanding the dynamics of digital tube display in which proceedings have dynamic scanning process decoding process digital technology the process of the three processes, can also block realize realize

用at89s52访问PDIUSBD12(USB协议）-AT89S52 visit with PDIUSBD12 (USB Protocol)

单片机启动代码，帮助你很好学习启动顺序和原理-Single-chip boot code, help you to start learning good order and the principle of

SMC1601.Ｃ　SMC1601或SMC160２液晶用的人很多，成本低，只要十块钱一片，替代ＬＥＤ的好选择-SMC1601.C SMC1601 or SMC1602 LCD with many people, low cost, as long as a ten money, a good alternative choice LED

基于MSC51的数字钟。采用PCF8563作为日历芯片，ZLG7290显示和键盘控制。具有5个闹钟源。同时可以修改报时时间和报时音效和LED灯效。-MSC51-based digital clock. PCF8563 chip used as a calendar, ZLG7290 display and keyboard control. Clock source has a 5. At the same time, time can be amended time and time efficient audio and LED lamps.

通过实验进一步了解和掌握单片机原理的基本概念、单片机应用系统的硬件设计及调试方法-Through experiments to further understand and grasp the basic concepts of SCM principles, microcontroller applications, the hardware design and debugging method

AVR单片机入门及C语言高效设计实践（六） ATMEAG16L的定时／计数器 ATMEAG16L有两个8位定时／计数器（T／C0、T，C2）和一个16位定时／计数器T/C1）。每一个计数器都支持PWM（脉冲宽度调制）输出功能。PWM输出在电机控制、开关电源、信号发生等领域有着广泛的应用。[第一段]-AVR C language portal and efficient design practice (6) ATMEAG16L the timer/counter All ATMEAG16L two 8 timer/counter (T/C0, T, C2) and a 16 timer/counter T/C1). Each counter support for a PWM (pulse width modulation) output function. PWM output in motor control, switching power supply, signal and other fields has wide application. [Paragraph]