这个是Mobile PPC同步软件的使用说明，带截图，解释得很详细，对初学者学习有很大帮助。...

motorola首席技术官的关于硬件系统的软件开发全过程的文档-on the hardware system software development process documentation

中电网及清华大学FPGA国家紧缺人才培训教材-Tsinghua University, China Power Grid and the national shortage of qualified personnel FPGA training materials

AIN系列ALPHA 全电子式多功能电能表 通讯规约-AIN series ALPHA-wide multi-function watt-hour meter electronic communications Statute

16c552中文资料-16c552 Chinese data

WDM驱动程序设计　　 一．WDM简介 　　微软不断推出新的操作系统，现在Windows98和Windows2000已经成了主流，原先用来实现驱动程序的VxD技术随着Win95的淡出也慢慢地将退出历史舞台，在Windows98和Windows2000中设备驱动程序将根据Windows驱动程序模型（WDM）来设计。WDM通过提供一种灵活的方式来简化驱动程序的开发，在实现对新硬件支持的基础上减少并降低所必须开发的驱动程序的数量和复杂性。 -WDM Driver Design 1. WDM briefed constantly introduce new Microsoft operating system, now Windows 98 and Windows 2000 has become mainstream. originally used to achieve the VxD driver technology with the Windows 95 are slowly fade out to be from the historical stage, in Windows 98 and Windows Device Drivers under Windows Flooding dynamic process model (WDM) to the design. WDM by providing a flexible way to simplify driver development, the realization of new hardware support on the basis of the reduction and cut the need to develop drivers for the number and complexity.

PSK通信编程仿真源程序-PSK communication simulation programming source

语音压缩和解压缩源代码。-voice compression source code.

语音即时通信源码(非UDP打洞),协议TCP.-Voice-source instant messaging (non-UDP holes), protocol TCP.

MOTOROLA D15 MODEN 用户手册-MOTOROLA D15 modem user manual

Serial串口累，支持多个串口同时通讯。-Serial serial tired, support for multiple serial communication at the same time.