嵌入式系统文件管理部分，对文件和目录管理，可以删除，创建，重名名，模拟dos系统。

应用背景The CMX990 provides, on-chip: a flexible, formattable GMSK packet and freeformat modem, a dual synthesiser fed from an external source, IF and RF transceiver stages for both Rx and Tx modes, and auxiliary ADCs and DACs for system control and monitoring.关键技术Operating in the range of 400MHz to 1GHz at data rates of 4 to 16 kbps. This single-chip, half-duplex device requires a minimum of external components, keeping end-product board size, power consumption and cost to an absolute minimum. The versatile GMSK modem is configured for either packet and freeformat data operation via an efficient task-oriented Rx and Tx format and command structure combined with data scrambling, interleaving and FEC and CRC capabilities. Rx data acquisition, extraction and tracking functions use Rx data-quality feedback to support varying signal environments. IF and RF functions in the Tx path handle all the signal processing requi

使用8051 MCU利用夏普灰尘传感器GP2Y1010AU检测PM2.5，代码中实现自动更新基值，可使用再空气净化机上。单片采用现代8051系列单片机。

天嵌的Qt使用手册，挺详细的，刚接触Qt的可以仔细-Days embedded in the Qt manual, very detailed, new to Qt that can take a closer look

嵌入式开发板s3c2410的模数转换模块的linux操作系统驱动程序，涉及进程，中断，信号量，文件系统等概念-S3C2410 embedded development board of the analog-digital conversion module linux operating system drivers, involved in the process, interruption, semaphores, file system concepts

51系列单片机的步进式电动机的C语言程序。-51 Series single-chip stepper motor type C language program.

FPGA设计，PCI的IP核，很好的源代码，供大家参考！

赫立讯ZigbeeIP-Link2220H模块在数据通讯速率方面的测试文档，对要求数据量传输较大有参考价值．-Helicomm ZigbeeIP-Link2220H module data communication rates at testing documents, requesting a larger amount of data transmission there is reference value.

三星ARM9核心S3C2410的A/D转换程序-A/D conversion programme for ARM9-based Samsung S3C2410

这是基于蓝海微芯LJD-SY-XA+单片机开发系统的远程无线监控系统的DA及AD采集和数码显示的部分，GPRS无线控制部分正在整理，稍后再传-This is based on LAN Hai-core LJD- SY- XA MCU Development System Remote Wireless Monitoring System DA and AD Acquisition and digital display, GPRS wireless control of the process of collating and later the re-

STM32F103RC — enc28j60，实现以太网的示例代码。你可以看到与 enc28j60 网络接口 SPI 的软件连接。还有用几块 SPI 端口和编码的 WEB 服务器，并检查芯片的物理层。