target reflection echo detection algorithm and its FPGA implementation One: Algorithm OverviewA time ago, a project was contacted with a sonar target reflection echo detection. The core function of the sonar receiver is to recognize the echo of the excitation signal emitted by the transmitter in the reflected echo which contains a lot of noise. I will share a few articles on this FPGA-based ECHO recognition
obtain the FPGA-specific VHDL RTLCode.5.
Figure 5 signalcompiler
4. Use Modelsim for RTL-level simulation
This step is to simulate and verify the VHDL File converted from the. MDL file, which can be achieved by adding the testbench component. 6.
Figure 6 testbench
In addition, if you select the launch GUI, you can directly start Modelsim for simulation. If you do not select it, you can use TCL --> execute macro under the Tools menu of
Fpga hdl source program
FPGA statistics camera output pixels, form sizes, and so on
//----------------------------------------------------------------------------// user_logic.v - module//----------------------------------------------------------------------------//// ***************************************************************************// ** Copyright (c) 1995-2012 Xilinx, Inc. All rights reserved.
At present, many companies have proposed new types of computer high-speed bus, such as the Arapahoe bus standard and hypertransport technology. However, the protocols are not compatible with each other and there is no unified standard. As a traditional universal local bus, PCI bus still occupies the mainstream PC market, with tenacious vitality.
There are various PCI interface chips on the market, such as AMCC's S5933 and PLX's 9080 series. The dedicated chip can implement the complete interf
of the signal, keeping the low-frequency signal, to compensate the transmission line attenuation of the signal, improve the performance of the eye graph and guarantee the transmission quality.3 Xilinx FPGA Transceivers3.1 system ArchitectureThe 7 Series FPGAs GTX and GTH transceivers is power-efficient transceivers, supporting line rates from $ MB/s to 12.5 GB/s for GTX transceivers and 13.1 Gb/s for GTH transceivers. Four Gtxe2_channel Primitives an
I recently went home for a few summer vacation. Although I had to keep learning, I had to look at the theory in a completely isolated computer environment. Today, I will go back and burn the FPGA code into the Rom, and then enable automatic configuration upon power-on. This article is simple and simple, and only serves as my personal record, in case you forget to use the configuration steps in the future. (The image function of the csdn blog is not go
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Introduction
In this section, we will explain how to use the FPGA configuration file andProgramDownload To epcsx (X is, 16 ...) . First of all, we need to download the program to epcsx without downloading it to parallel Flash because we can remove the parallel f
1 Basic Theory Section1.1 FrequencyCrossover, yes, this concept is also important. Frequency division refers to a single frequency signal is reduced to the original 1/n, called N-division. The realization of the frequency divider circuit or device called "divider", such as the 33MHZ signal 2 to get 16.5MHZ signal, 3 to get 11MHZ signal, 10 to get 3.3MHZ signal.Frequency division is mainly relative Yu Shijing vibration, with less than that high frequency, the Development board generally according
Want to finish the board to export the FPGA pin definition, I think there is no good way to Baidu, fortunately there are peers on the Internet to share. The effect is very good, to add some of the use of their own experience, is to their own memo.The original view is the rain Zhubo the Lord's share, the original link: http://blog.163.com/[email protected]/blog/static/87378868201241644042371/1. Select one part of the
FPGA Important Design Ideas?1. speed and area swap principles. in the area of speed can achieve a very high data throughput rate, in fact , the string / and conversion, is an area of the idea of Speed change2. Ping-pong operation. 3. The idea of string/and conversion. One of the important techniques for high speed data processing. Here, let me give you an example of a multiphase filter extraction:After extraction, two-way data is processed at a
Test summary of Image acquisition system based on fpga+usb2.0-mt9m001The system adopts the FPGA_VIP_USB_V102 Board test produced by layer wavesBoard is divided into: core board, backplane, camera boardCore board adopts: Ep4ce10e22 (EO4CE6E22 compatible) as the main controlBase Plate adopts: CY7C68013A as USB transmission chipCamera Board (MT9M001C12STM): Clock is provided by the FPGA, programmable 24M, 48M,
In some FPGAs, floating-point numbers cannot be manipulated directly, and can only be numerically calculated using fixed-point numbers. For FPGAs, the book that participates in mathematics is the 16-bit integer number, but what if there are decimals in mathematical operations? You know, the FPGA is powerless for decimals, a solution is to use the calibration. The number of the calibration is to calculate the floating point number is enlarged very many
Because I use the four-generation development board of the black gold industry and the central chip uses the cycloneiv e of Altera, read the information on the device's official website and take notes for future reference. The cyclone IV device family has the following features:■ Low-cost, low-power FPGA Architecture:■ 6 K to 150 K logical units■ Up to 6.3 MB of Embedded Memory■ Up to 360 18 × 18 multiplier for DSP processing-intensive applications■
In fact, the verification platform instead of board-level verification.We can instantiate a mem block in Testbench and put a. mif file into the mem block. The. mif file is transferred from a image file by matlab or other exe. On the othe hand, Verilog Bench can write processed data back into a. txt file, which can be transferred back into image b y matlab or other exe.By doing this, we no further need image acquisition gear and image display gear before and after the
For multi-bit wide data lines, before diamond xxx, the pin-binding is (if the data is input wire[1:0] din)LOCATE COMP "din_0" SITE "P16";LOCATE COMP "din_1" SITE "P15";/******* This format is not very perverted, and Altera, Xilinx are not the same, for just contact with the lattice development platform is definitely a pit *******/diamond3.7, the pin-tied frame isLOCATE COMP "din[0" "SITE" P16 ";LOCATE COMP "din[1" "SITE" P15 ";/******* This is more or
E-tiling_easy versionThe main idea: there is a grid size of 2 x N, now need to use 2 specifications of the Dominoes paved, the domino specifications are 2 x 1 and 2 x 2, please calculate how many kinds of laying method.A simple DP question: dp[i+2]=dp[i+1]+2*dp[i]; Initial conditions: dp[1]=1;dp[2]=3;At first did not consider clearly, the recursive relationship written dp[i+2]=3*dp[i];Explain Dp[i+2]=dp[i+1]+2*dp[i]DP[I+2] In contrast to dp[i] just a 2x2 square, the current i+1
a villain from a starting point, not looking at the longitudinal direction, only look at the horizontal direction, then for 2 x N such a square, the placement will have n choice, assuming that in the left to the right from the first lattice group, then there will be 2 ways of placement (above or placed below) so left or right to move, There are also two ways to move (for example, to the right, to move to the right or to move to the lower right two wa
Previous questions cut lattice time limit: 1.0s memory limit: 256.0MBProblem descriptionAs shown, a number of integers are filled in 3 x 3 squares.+--*--+--+|10* 1|52|+--****--+|20|30* 1|*******--+| 1| 2| 3|+--+--+--+We cut along the star Line in the diagram and get two parts, each with a number of 60.The requirement of the subject is to ask you to determine whether the integer in the given m x n lattice ca
Financial management system is one of the common systems in enterprises, the use of financial system can help financial personnel to facilitate the management of purchase orders, outbound information, personnel wages and income and expenditure statements.This article mainly describes how to create a financial management system using the Web application of the movable lattice.The first step is to organize the requirements of the financial management system, identify the management functions that
I recently used the WPS for a long time. Once in the production of phonetic Alphabet for children, the Internet search, did not find the right template or pictures available, had to make one of their own. After practice, the author uses the WPS form to make the Pinyin field character lattice.
Open the WPS table and select all the cells. Then click format → rows → row height. Set the row height to 17 in the Row Height dialog box, and then click format
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