modbusx协议仿真，研究好仪表Modbus

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51单片机+sl811芯片实现对u盘的读写功能，代码为C++实现，可供大家参考使用-The use of 51 SCM+ Sl811 chip of u disk read and write functions, the symbol C++ Realize for U.S. use and reference

C++的单片机编程-C++ Microcontroller programming

六位数码管动态x显示控制的实现！调试通过可以直接用！-Dynamic x 6 digital tube display control realize! Debugging can be directly used through!

单芯片点对点串行通信（max232）单芯片点对点串行通信（max232）单芯片点对点串行通信（max232）

在AVR单片机下通过USART实现串口通讯，里面包含有其配置及源码。-In the AVR microcontroller achieved through USART serial communication, which contains its configuration and source code.

继续上传：单片机89C51，LCD12864密码锁。-Continue to upload: Singlechip 89C51, LCD12864 locks.

AES单片机加解密程序 很好的一个程序，大家赶快下载-Single-chip AES encryption and decryption process, a good procedure, everyone quickly download

一些关于单片机的芯片的功能介绍，具体主要是介绍AVR系列的特点及编程-Some information about the function of single-chip chip introduction, the specific AVR series mainly introduce the characteristics and programming

新手关于单片机的-newcomers on the MCU