AD

建立环形缓冲区，将发送缓冲区建立成一个环形的缓冲区，在这个环形缓冲区内，通过头指针和尾指针来定位空白区和数据区(Ring buffer and send buffer created as a circular buffer in the ring buffer head and tail pointers to locate the blank area and data area)

51单片机连接射频芯片rc522的单片机程序(51 single connection RF chip microcontroller program rc522)

说明：  本实验将实现如下功能：开机的时候先检测SD卡和SPI FLASH是否存在，如果存在则获取其容量，并显示在LCD上面（如果不存在，则报错）。之后开始USB配置，在配置成功之后就可以在电脑上发现两个可移动磁盘。我们用DS1来指示USB正在读写，并在液晶上显示出来，同样，我们还是用DS0来指示程序正在运行。(This experiment will achieve the following functions: when booting, first detect the existence of SD card and SPI FLASH, and if there is, obtain its capacity, and display it on the LCD (if not, report an error). Then the USB configuration is started, and after the configuration is successful, two removable disks can be found on the computer. We use DS1 to indicate that the USB is reading and writing, and display it on the LCD. Similarly, we use DS0 to indicate that the program is running.)

使用MSP430F149芯片，透过串口与电脑发送接收通信，波特率9600,8数据，无校验。使用32.768k晶振，使用P3.6和P3.7口作为发送和接收口，使用异步通信USART1，采用中断形式。实现通信，当单片机接收到什么字符后，它会自动把接收的字符发送个电脑(MSP430F149 chip computer through the serial port and send and receive communication baud rate 9600 data, no parity. 32.768k crystal form of P3.6 and P3.7 port for sending and receiving mouth use asynchronous communication USART1, the interrupt. Achieve communication, when the microcontroller received characters, it automatically receives the character to send a computer)

240*128 带中文字库的LCD模块的驱动 平台：ARM linux (240* 128 with a Chinese font LCD module driven platforms : ARM Linux)

programa para instalar los controladores de la pc

应用程序向导已为您创建了此 Test 应用程序。此应用程序不仅介绍了使用 Microsoft 基础类的基本知识，而且是编写应用程序的起点。(The application wizard has created this Test application for you. This application not only introduces the basic knowledge of the Microsoft class, but also the starting point for the application.)

利用DS12C887时钟芯片实现时钟的LCD显示(use DS12C887 clock chip clock LCD Display)

高性能超低功耗单片机msp430开发工具 IAR Systems(High-performance single-chip ultra-low power MSP430 development tools IAR Systems)

关于瑞士SHT11程序，把采集的数据在液晶上显示(Switzerland SHT11 procedures on the data collected in the liquid crystal display)