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VSPD是Virtual Serial Port Driver的简写，本软件由著名的软件公司Eltima制作，软件来自官方网站，压缩包里含有注册的Dll，可以无限制的使用。本软件运行稳定,允许你去模仿多串口像你希望的那样而支持所有的设置和信号线仿佛那是真正的COM端口。 对于程序员来说，你可以使用C/C++、C#、Delphi、VB等所有支持Dll的语言 ...

通用串行总线(usb Universal Serial Bus)是一种计算机与外部设备连接的新技术，相对于PC传统的串/并行接口，USB具有较高的数据传输率、即插即用、热插拔、易扩充和低成本等优点。从USB标准颁布以来的短时间内，USB已成为PC必备的标准接口。 基于C51的usb信号发生器固件源代码。 ...

USB to Serial Driver

写COM/serial port通讯代码会需要的软件，用来debug很好用

#include <malloc.h>       #include <stdio.h>       #include <stdlib.h>       #include <string.h>       #define NULL 0    &nbsp ...

2012系统请手工注册 User:GNU Serial:918A8-20DD8-44ZA1-B0W4A-13T66 方便在服务器更改网页内容

DESCRIPTION The Texas Instruments MSP430 family of ultra-low-power microcontrollers consists of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with five low-power modes, is optimized to achieve extended battery life in portable m ...

The SP2526A device is a dual +3.0V to +5.5V USB Supervisory Power Control Switch ideal for self-powered and bus-powered Universal Serial Bus (USB) applications. Each switch has low on-resistance (110mΩ typical) and can supply 500mA minimum. The fault currents are limited to 1.0A typical and the fla ...

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This book is intended for the graduate or advanced undergraduate engineer. The primary motivation for developing the text was to present a complete tutorial of phase-locked loops with a consistent notation. I believe this is critical for the practicing engineer who uses the text as a self-study guid ...