SPI-4.2接口的FPGA实现

去偏移和包重组是在FPGA中实现SPI-4.2接口的核心难点,在分析偏移和包重组原理的基础上,给出基于FPGA的SPI-4.2接口的设计与实现方案,并对关键部分给出了硬件原理图,在线测试结果证明该方案可以实现SPI-4.2接口的功能。

基于蓝牙4.2的传感器通用接口研究与探索

针对物联网中传感器种类繁多、接口不一致的现状,设计了一种新型的无线传感器通用接口。该接口由信号处理电路、蓝牙芯片、电源和无线射频电路组成,具有体积小、即插即用、功耗低等特点。接口所采样的信号通过蓝牙传输给数据采集器或云服务器,并实时在界面上显示。该通用接口可在工业现场、智能家居、楼宇监控等场合下用于电流、电压、开关量与串口形式传感器信号的处理。并给出了通用接口的设计方案。测试结果表明,该接口可以有效处理传感器信号,达到了预期目标。

一种位宽可配置的对角交叉校验码算法

局部总线标准SPI-4.2已经成为在物理层设备和链路层设备之间进行分组或信元传输的最通用的接口标准.详细介绍了SPI4.2标准中对角交叉校验的工作原理、设计思想和电路结构,并详细讨论了一种可扩展为16X(X≥1)数据宽度的适合硬件FPGA实现的DIP-4码算法,该算法在实际应用中功能正确且实现简单方便.

泰克带领数字设计客户进入10GB宏伟蓝图

SPI-3和SPI-4.

Effects of Orientation of Carbon Nanotubes on CNT Bundle Based Silk Composite Using Finite Element Method

Carbon Nanotubes (CNTs) have exceptional mechanical properties. They are the stiffest and strongest material, yet discovered, because of their high length to diameter ratio. In this paper a Representative Volume Element (RVE) model of CNT-silk composite is made. Then the orientations of the CNTs in the composite are varied and the effects of this variation are observed. The change is mainly observed between the interfaces of CNT and silk. Also there is a change in Young’s Modulus. COMSOL Multiphysics 4.2a is used for building model and performing simulations.