Description: 在数字系统中，一般存在多个芯片，利用不同的特点用于实现不同的功能，一般都包含CPU,FPGA,AD,DA,memory，ASSP（专用标准模块）,ASIC等。CPU用于进行智能控制，FPGA进行硬件算法处理和多设备接口，AD进行模数转换，DA进行数模转换，memory存储临时数据。因此，FPGA如何与其他芯片进行通讯是重要的设计内容。数据输入，数据输出，双向通讯，指令传递，地址管理，不同时钟的异步通讯问题等等都需要处理。最基本的MEMORY如SRAM(128KX8bbit静态存储器628128)涉及到其中的输入，输出，双向通讯，地址管理问题，具有很强的代表性。在同步数字系统中更大量用到FIFO,SDRAM等等。其中FIFO使用方便简单，用处很广。在QUARTUSII软件库中，就有各种FPGA片内MEMORY供使用。但是FPGA的片内MEMORY容量太有限，因此外部MEMORY也是经常需要的。因此，本程序让大家学习控制芯片内外的MEMORY,为与其他智能设备的通讯学习打下基础。-In the digital system, generally there are several chips, the use of different features used to implement different functions, generally includes CPU, FPGA, AD, DA, memory, ASSP (application specific standard module), ASIC and so on. CPU is used for intelligent control, FPGA hardware algorithm processing and multi-device interface, AD to ADC, DA for digital-analog conversion, memory to store temporary data. Therefore, FPGA how to communicate with other chips are important design elements. Data input, data output, two-way communication, instruction delivery, address management, different clock asynchronous communication problems, and so have to deal with. If the most basic MEMORY SRAM (128KX8bbit static memory 628 128) which involved the input, output, bi-directional communication, address management issues, with strong representation. In synchronous digital systems a lot more use FIFO, SDRAM, etc.. One simple and easy to use FIFO, use very broad. In QUARTUSII software library, there ar Platform: |
Size: 223232 |
Author:平凡 |
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Description: 结合FPGA和以太网传输的特点，设计了一套数据采集系统，应用FPGA的内部逻辑实现对ADC、SDRAM、网卡控制芯片DM9000的时序控制，以FPGA作为采集系统的核心，通过ADC，将采集到的数据存储到SDRAM中，以FIFO方式从SDRAM中读出数据，并将数据结果通过以太网接口传输到计算机-Combination of FPGA and Ethernet features, designed a data acquisition system, application FPGA' s internal logic to realize the ADC, SDRAM, LAN controller chip DM9000 timing control to capture FPGA as the core of the system, through the ADC, will be collected The data stored in SDRAM, the SDRAM in order to read data from the FIFO method, and data results to a computer via Ethernet interface Platform: |
Size: 388096 |
Author:gdr |
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Description: This is a variable length window averaging filter that uses an MCP3002 ADC with SPI interface to sample an analog input, and has a PWM that can be run through a low-pass filter to produce an analog output. The design was simulated in Modelsim with no problems (although it was not a thorough simulation), and it was successfully implemented on an Altera Cyclone FPGA. Platform: |
Size: 16384 |
Author:Kelton |
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Description: 与单片机相比，用CPLD/FPGA器件更适合于直接对高速AD采样控制。本实验接口器件为ADC0809，根据ADC0809的工作时序使用CPLD产生该控制信号，CPLD启动AD转换后，得到的数据送至单片机并在PC机及数码管上显示AD转换结果。-Compared with the microcontroller, CPLD/FPGA devices more suitable for direct sampling control of high-speed AD. The interface of the experimental device for the ADC0809 ADC0809 Timing CPLD is used to generate the control signal, the CPLD to start the AD conversion, the data sent to the microcontroller and the AD conversion result on the PC and digital tube display Platform: |
Size: 14336 |
Author:chen |
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Description: 近年来，基于FPGA的高速的模数转换器设计得到了广泛的应用。随着现代电子技术的应用和发展，越来越多的电子应用由模拟系统向数字系统转变，而AD转换器为模拟系统和数字系统的界面-In recent years, FPGA-based high-speed ADC design has been widely used. With modern electronic technology application and development, more and more electronic applications from analog systems to digital systems changes, and AD converter to analog and digital systems interface Platform: |
Size: 16384 |
Author:徐度灿 |
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Description: THIS PROJECT IMPLEMENTED ON VITERX 4 FPGA and THE COMPLETE SOURCE FILES testbench, design file UCF file are there and THIS ADC is maily configured with SPI protocol interface SPI CLK,SPI DATA, SPI LE, the SPEED OF OPERATION OF SPI CLK is 10 MHZ Platform: |
Size: 780288 |
Author:LEE |
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