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开发工具 Arduino应用_Arduino连接超声波传感器测距
超声波传感器适用于对大幅的平面进行静止测距。普通的超声波传感器测距范围大概是 2cm~450cm，分辨率3mm（淘宝卖家说的，笔者测试环境没那么好，个人实测比较稳定的 距离10cm~2m 左右，超过此距离就经常有偶然不准确的情况发生了，当然不排除笔者技术 问题。）
测试对象是淘宝上面最便宜的SRF-04 超声波传感器，有四个脚 ...
可编程逻辑 使用Artix-7 FPGA 降低您的系统功耗与成本
As businesses and consumers expect more fromportable electronics, the FPGA industry has beencompelled to re-think how it serves these low-power,cost-sensitive markets. Application classes like
可编程逻辑 Create a 1-Wire Master with Xilinx PicoBlaze
Abstract: Designers who must interface 1-Wire temperature sensors with Xilinx field-programmable gate arrays(FPGAs) can use this reference design to drive a DS28EA00 1-Wire slave device. The downloadable softwarementioned in this document can also be used as a starting point to connect other 1-Wir ...
可编程逻辑 HDB3编解码器设计
HDB3(High Density Bipolar三阶高密度双极性)码是在AMI码的基础上改进的一种双极性归零码，它除具有AMI码功率谱中无直流分量，可进行差错自检等优点外，还克服了AMI码当信息中出现连“0”码时定时提取困难的缺点，而且HDB3码频谱能量主要集中在基波频率以下，占用频带较窄，是ITU-TG.703推荐的PCM基群、二次群和 ...
可编程逻辑 XAPP098 - Spartan FPGA低成本、高效率串行配置
This application note shows how to achieve low-cost, efficient serial configuration for Spartan FPGA designs. The approachrecommended here takes advantage of unused resources in a design, thereby reducing the cost, part count, memory size,and board space associated with the serial configuration ci ...
可编程逻辑 WP264-在数字视频应用中使用CPLD
 
The CoolRunner-II CPLD is a highly uniform family of fast, low-power devices. Theunderlying architecture is a traditional CPLD architecture, combining macrocells intofunction blocks interconnected with a global routing matrix, the Xilinx AdvancedInterconnect Matrix (AIM). The function blo ...
可编程逻辑 WP312-Xilinx新一代28nm FPGA技术简介
Xilinx Next Generation 28 nm FPGA Technology Overview
Xilinx has chosen 28 nm high-κ metal gate (HKMG) highperformance,low-power process technology and combined it with a new unified ASMBL™ architecture to create a new generation of FPGAs that offer lower power and higher performance. ...
可编程逻辑 WP369可扩展式处理平台-各种嵌入式系统的理想解决方案
WP369可扩展式处理平台-各种嵌入式系统的理想解决方案 ：Delivering unrivaled levels of system performance,flexibility, scalability, and integration to developers,Xilinx's architecture for a new Extensible Processing Platform is optimized for system power, cost, and size. Based on ARM's dual-c ...
可编程逻辑 基于FPGA的光纤光栅解调系统的研究
 波长信号的解调是实现光纤光栅传感网络的关键，基于现有的光纤光栅传感器解调方法，提出一种基于FPGA的双匹配光纤光栅解调方法，此系统是一种高速率、高精度、低成本的解调系统，并且通过引入双匹配光栅有效地克服了双值问题同时扩大了检测范围。分析了光纤光栅的测温原理并给出了该方案软硬件设计，综合考虑系统的解 ...
可编程逻辑 多层印制板设计基本要领
【摘要】本文结合作者多年的印制板设计经验，着重印制板的电气性能，从印制板稳定性、可靠性方面，来讨论多层印制板设计的基本要求。【关键词】印制电路板；表面贴装器件；高密度互连；通孔【Key words】Printed Circuit Board；Surface Mounting Device；High Density Interface；Via一．概述印制板（PCB－Printed Circuit ...