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技术资料 ColdFire BDM

oldFire系列微处理器支持JTAG和BDM两种调试模式。 虽然JTAG调试具有不占用系统资源并能够调试没有外部总线 的芯片，但是由于JTAG是通过串行依次传递数据的，速度比较 慢，因而只能进行软件断点级别的调试；而且其自身还不能完 成实时跟踪和多种事件触发等复杂调试功能。因此，ColdFire系 列微处理器一般采用BDM调试模式。 ...
https://www.eeworm.com/dl/975496.html
下载: 1
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技术资料 8通道同步20MHz数据采集系统

USB总线数据采集产品，可经USB电缆接入各种台式计算机, 笔记本机, 工控机连接，构成实验室、产品质量检验中心、特别是爆炸检测、光谱分析等领域的数据采集、波形分析和处理系统，也可构成工业生产过程控制监控测量系统。而且它具有体积小，即插即用等特点，因此是便携式系统用户的最佳选择。 ...
https://www.eeworm.com/dl/982147.html
下载: 5
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技术资料 基于磁传感器MMC212的电子指南针

设计了基于各相异性磁阻传感器芯片 MMC212xM G 的高精度电子指南针. 由于该芯片是带有片上信号处 理并集成了 I 2 C 总线的完整的传感系统 ,允许设备直接与微处理器相连而不需要 A/ D 转换器或定时器 ,所以用该电路 制作的电子指南针具有外围电路简单 、 功耗低 、 体积小的特点. ...
https://www.eeworm.com/dl/994485.html
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模拟电子 在单端应用中采用差分I/O放大器

  Recent advances in low voltage silicon germaniumand BiCMOS processes have allowed the design andproduction of very high speed amplifi ers. Because theprocesses are low voltage, most of the amplifi er designshave incorporated differential inputs and outputs to regainand maximize total outp ...
https://www.eeworm.com/dl/571/21329.html
下载: 165
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电源技术 FP6291

DC/DC 升压IC：The FP6291 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.25 Ω power MOSFET make this regulator highly power efficient. The internal compensation network also minimizes as much as 6 external component counts. The non-inverting input of error amplif ...
https://www.eeworm.com/dl/505/24298.html
下载: 151
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单片机编程 MSP430在频率测量系统中的应用

   介绍一种以MSP430单片机为基础的智能频率测量系统，采用硬件逻辑与软件指令相结合的方式控制闸门，实现0 MHz~10 MHz范围内无档切换的等精度测量。 Abstract:  An intelligent frequency measurement system based on MSP430 singlechip is introduced. The system uses a way that can combine hardwa ...
https://www.eeworm.com/dl/502/29334.html
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单片机编程 PCA9548A 8 channel I2C bus swi

The PCA9548A is an octal bidirectional translating switch controlled via the I2C-bus. TheSCL/SDA upstream pair fans out to eight downstream pairs, or channels. Any individualSCx/SDx channel or combination of channels can be selected, determined by thecontents of the programmable control register.An ...
https://www.eeworm.com/dl/502/31022.html
下载: 195
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教程资料 XAPP694-从配置PROM读取用户数据

This application note describes how to retrieve user-defined data from Xilinx configurationPROMs (XC18V00 and Platform Flash devices) after the same PROM has configured theFPGA. The method to add user-defined data to the configuration PROM file is also discussed.The reference design described in t ...
https://www.eeworm.com/dl/fpga/doc/32574.html
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可编程逻辑 使用Nios II软件构建工具

 使用Nios II软件构建工具 This chapter describes the Nios® II Software Build Tools (SBT), a set of utilities and scripts that creates and builds embedded C/C++ application projects, user library projects, and board support packages (BSPs). The Nios II SBT supports a repeatable, scriptable, a ...
https://www.eeworm.com/dl/kbcluoji/39385.html
下载: 186
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可编程逻辑 远程配置Nios II处理器应用笔记

     通过以太网远程配置Nios II 处理器 应用笔记 Firmware in embedded hardware systems is frequently updated over the Ethernet. For embedded systems that comprise a discrete microprocessor and the devices it controls, the firmware is the software image run by the microprocessor. Wh ...
https://www.eeworm.com/dl/kbcluoji/39386.html
下载: 54
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