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  • CAT5110 CAT5118 CAT5119 CAT512

    CAT5110/18/19/23/24/25 linear-taper digitally programmable potentiometers perform the same function as a mechanical potentiometer or a variable resistor. These devices consist of a fixed resistor and a wiper contact with 32-tap points that are digitally controlled through a2-wire up/down serial interface.

    标签: CAT 5110 5118 5119

    上传时间: 2013-11-22

    上传用户:541657925

  • XL6003 300KHz 36V Boost 3W LED

    The XL6003 regulator is fixed frequency PWM Boost (step-up) DC/DC converter, capable ofdriving 1050mA load current with excellent line and load regulation. The regulator is simple to use because it includes internal frequency compensation and a fixed-frequency oscillator so that it requires a minimum number of external components to work. The XL6003 could directly drive 5~10 3W LED units at VIN=12V.

    标签: Boost 6003 300 36V

    上传时间: 2013-11-06

    上传用户:xy@1314

  • 扩频通信芯片STEL-2000A的FPGA实现

    针对传统集成电路(ASIC)功能固定、升级困难等缺点,利用FPGA实现了扩频通信芯片STEL-2000A的核心功能。使用ISE提供的DDS IP核实现NCO模块,在下变频模块调用了硬核乘法器并引入CIC滤波器进行低通滤波,给出了DQPSK解调的原理和实现方法,推导出一种简便的引入?仔/4固定相移的实现方法。采用模块化的设计方法使用VHDL语言编写出源程序,在Virtex-II Pro 开发板上成功实现了整个系统。测试结果表明该系统正确实现了STEL-2000A的核心功能。 Abstract:  To overcome drawbacks of ASIC such as fixed functionality and upgrade difficulty, FPGA was used to realize the core functions of STEL-2000A. This paper used the DDS IP core provided by ISE to realize the NCO module, called hard core multiplier and implemented CIC filter in the down converter, described the principle and implementation detail of the demodulation of DQPSK, and derived a simple method to introduce a fixed phase shift of ?仔/4. The VHDL source code was designed by modularity method , and the complete system was successfully implemented on Virtex-II Pro development board. Test results indicate that this system successfully realize the core function of the STEL-2000A.

    标签: STEL 2000 FPGA 扩频通信

    上传时间: 2013-11-05

    上传用户:liu123

  • 扩频通信芯片STEL-2000A的FPGA实现

    针对传统集成电路(ASIC)功能固定、升级困难等缺点,利用FPGA实现了扩频通信芯片STEL-2000A的核心功能。使用ISE提供的DDS IP核实现NCO模块,在下变频模块调用了硬核乘法器并引入CIC滤波器进行低通滤波,给出了DQPSK解调的原理和实现方法,推导出一种简便的引入?仔/4固定相移的实现方法。采用模块化的设计方法使用VHDL语言编写出源程序,在Virtex-II Pro 开发板上成功实现了整个系统。测试结果表明该系统正确实现了STEL-2000A的核心功能。 Abstract:  To overcome drawbacks of ASIC such as fixed functionality and upgrade difficulty, FPGA was used to realize the core functions of STEL-2000A. This paper used the DDS IP core provided by ISE to realize the NCO module, called hard core multiplier and implemented CIC filter in the down converter, described the principle and implementation detail of the demodulation of DQPSK, and derived a simple method to introduce a fixed phase shift of ?仔/4. The VHDL source code was designed by modularity method , and the complete system was successfully implemented on Virtex-II Pro development board. Test results indicate that this system successfully realize the core function of the STEL-2000A.

    标签: STEL 2000 FPGA 扩频通信

    上传时间: 2013-11-19

    上传用户:neu_liyan

  • I. Introduction This code exploits a previously undisclosed vulnerability in the bit string deco

    I. Introduction This code exploits a previously undisclosed vulnerability in the bit string decoding code in the Microsoft ASN.1 library. This vulnerability is not related to the bit string vulnerability described in eEye advisory AD20040210-2. Both vulnerabilities were fixed in the MS04-007 patch. II. Screenshots $ ./kill-bill.pl . kill-bill : Microsoft ASN.1 remote exploit for CAN-2003-0818 (MS04-007) by Solar Eclipse <solareclipse@phreedom.org> Usage: kill-bill -p <port> -s <service> host Services: iis IIS HTTP server (port 80) iis-ssl IIS HTTP server with SSL (port 443) exchange Microsoft Exchange SMTP server (port 25) smb-nbt SMB over NetBIOS (port 139) smb SMB (port 445) If a service is running on its default port you don t have to specify both the service and the port. Examples: kill-bill -s iis 192.168.0.1 kill-bill -p 80 192.168.0.1 kill-bill -p 1234 -s smb 192.168.0.1

    标签: I. vulnerability Introduction undisclosed

    上传时间: 2015-05-14

    上传用户:xhz1993

  • -- WISHBONE revB2 compiant I2C master core -- -- author: Richard Herveille -- rev. 0.1 based on s

    -- WISHBONE revB2 compiant I2C master core -- -- author: Richard Herveille -- rev. 0.1 based on simple_i2c -- rev. 0.2 april 27th 2001, fixed incomplete sensitivity list on assign_dato process (thanks to Matt Oseman) -- rev. 0.3 may 4th 2001, fixed typo rev.0.2 txt -> txr -- rev. 0.4 may 8th, added some remarks, fixed some sensitivity list issues

    标签: Herveille WISHBONE compiant Richard

    上传时间: 2014-01-17

    上传用户:tzl1975

  • DVBstream is based on the ts-rtp package available at http://www.linuxtv.org. It broadcasts a (subs

    DVBstream is based on the ts-rtp package available at http://www.linuxtv.org. It broadcasts a (subset of a) DVB transport stream over a LAN using the rtp protocol. There were a couple of small bugs in the original ts-rtp application, which I have fixed here.

    标签: broadcasts DVBstream available linuxtv

    上传时间: 2013-11-30

    上传用户:sy_jiadeyi

  • Version 5.0: * Add the Manufacturer infomation link on the Start menu * Change the intel cpu s

    Version 5.0: * Add the Manufacturer infomation link on the Start menu * Change the intel cpu s logo * fixed several bugs.

    标签: the Manufacturer infomation Version

    上传时间: 2014-01-22

    上传用户:wangdean1101

  • Following is a repost of the public domain make that I posted to net.sources a couple of months ago

    Following is a repost of the public domain make that I posted to net.sources a couple of months ago. I have fixed a few bugs, and added some more features, and the resulting changes amounted to about as much text as the whole program (hence the repost).一个编译器C代码,详见REDME。

    标签: Following sources domain couple

    上传时间: 2015-08-31

    上传用户:manlian

  • Jan 04, 2007 1. Add SPI support, see spi.h and spi.c 2. Add driver.h 3. Modified keyboard modu

    Jan 04, 2007 1. Add SPI support, see spi.h and spi.c 2. Add driver.h 3. Modified keyboard module and display module 4. Add BitSet support, see bitset.h and bitset.c 5. fixed some bugs Dec 25, 2006 1. Name this OS as AvrcX 2. Release AvrcX_1.0 alpha

    标签: Add spi Modified keyboard

    上传时间: 2015-09-02

    上传用户:kjl