基于VHDL数字频率计

传感信号无线数字传输系统的设计与实现.kdh(err)

和picoblaze完全兼容的mcu ip core-And PicoBlaze fully compatible mcu ip core

Xilinx Spartan-3E Starter Kit Board User Guide(中文用户手册)(Xilinx Spartan-3E Starter Kit Board User Guide)

绝热电路都是使用"可逆逻辑"的低功耗电路以节省能源。与传统的CMOS电路，在开关过程中消耗能量，不同绝热电路试图节约费用由以下两个关键的规则： 永远不会打开一个晶体管时电压源之间

在接收信号的数字化、软化的实现中,数字下变频起着重要的作用。本文首先介绍了数字下 变频的组成结构,然后详细分析了数字下变频的工作原理,描述了在实现数字下变频时,设计方案所 采用的高效滤波器———CIC 滤波器和多相抽取滤波器的结构和原理。最后,用通过Simulink 对数字 下变频的性能进行了仿真。在仿真的基础上使用Insight 公司的FPGA 开发系统,用测试电路实测了 数字下变频的性(In the receiving digital signal, softening the realization, the digital down-conversion plays an important role. This article first introduced the digital down conversion of the composition, and then a detailed analysis of digital down conversion of the working principle described in the realization of digital down conversion, the design used in high-performance filters--- CIC filters and multi-phase extraction filter structure and principle. Finally, with the adoption of Simulink for digital down-conversion performance of the simulation. In the simulation based on the use of Insight s FPGA development system is measured using the test circuit of the digital down-conversion of)

HART 官方资料-HART协议采用基于Bell202标准的FSK频移键控信号，在低频的4-20mA模拟信号上叠加幅度为0.5mA的音频数字信号进行双向数字通讯，数据传输率为1.2kbps。(Official information-HART HART protocol based Bell202 standard frequency shift keying FSK signal at low frequencies 4-20mA analog signal amplitude is 0.5mA superimposed on the two-way audio digital signal digital communication, data transfer rate of 1.2kbps.)

Actel双端口存储；通过串口发送数据初始化RAM，然后通过串口返回到上位机的串口调试程序显示(通过串口发送数据初始化RAM，然后通过串口返回到上位机的串口调试程序显示)

用modelsim仿真一个正弦波产生程序-modelsim simulation using a sine wave generated procedures

This tutorial explains how to communicate with IO devices on the DE2 Board and how to deal with interrupts using C and the Altera Monitor Program. Two example programs are given that diplay the state of the toggle switches on the red LEDs. The fi rst program uses the programmed I/O approach and the second program uses interrupts.-This tutorial explains how to communicate with IO devices on the DE2 Board and how to deal with interrupts using C and the Altera Monitor Program. Two example programs are given that diplay the state of the toggle switches on the red LEDs. The fi rst program uses the programmed I/O approach and the second program uses interrupts.

在FPGA上编写的通过SPI总线配置外部DAC芯片DAC5686的程序，通过板级调试，验证可用。程序通过状态机实现，将需要配置的寄存器值转为SPI总线的数据格式发送出去。 (Configure external DAC chip DAC5686 via SPI bus program on FPGA written by board-level debugging, verification is available. Program through the state machine, you will need to configure the register values 椠渀琀漀 SPI bus data format sent.)