sha256 fpga

Use these design techniques and ISE function analysis tools to control power consumption The new generation of FPGA is getting faster and faster, with higher density and more logic resources. So how can we ensure that the power consumption does not increase along with this? Many design choices can affect the power consumption of the system, from explicit device selection to small frequency-based state machine value selection. In order to better un

The previous step is the hardware description language and the next step is the FPGA.After learning the hardware description language (Verilog or VHDL), how to continue the FPGA.There is no shortcut in the world, every step has to walk. Learning FPGA is also the case, on the basis of a hardware description language, you can learn the FPGA foundation.Learning Module Division and the definition of the interfa

FPGA DDR3 DebuggingSPARTAN6 FPGA chip integrates the MCB hard core, it can support to DDR3. The MiG IP core is available in Xilinx's development tools Xilinx ise, which designers can use to directly generate the DDR3 controller design module and complete the configuration via the MIG GUI graphical interface.First, establish the ISE project and add the MiG IP core,Next to the MiG IP core configuration, the m

There are two types of RAM, BLock RAM, and distributed RAM on the FPGA.Block Ram:1. Bram is a custom RAM resource in FPGA. The location is fixed, for example Bram is a column-by-column distribution, which can result in a longer route delay between user logic and Bram. For the simplest example, in a large-scale FPGA, if you run out of all the Bram, the performance will generally drop, even if the route is no

Why FPGA prototype verification?FPGA prototype verification can evaluate the chip function and performance before the IC flow sheet, and can provide the software designer with a verification platform. All designs, whether SOC or ASIC, need to be validated (functional and timing verification) to ensure that the IC implementation model matches the desired design performance. Moreover, the software content of

Original link:FPGA Development 13: FPGA Practical Development Skills (12)FPGA Development 13: FPGA Practical Development Skills (12)5.6 Commissioning experience in large scale designIn large-scale design debugging should be in accordance with the design concept in reverse order, from the bottom test, mainly rely on the Chipscope Pro tool. The following is mainly

Chapter 5 is finally available-FPGA-based c2mif software design and VGA application I. Overview of the MIF File For a long time, do you want to talk about the design and application of the MIF file? Bingo cannot decide on his own. I have written so many, and I am a little tired. Finally, I bit my teeth and wrote it, because no one has ever written it, so I want to write it. If I don't take the ordinary path, I will open up this road, let the design

to reuse them after a long time. In fact, when a problem occurs, you can observe the existing debug-pin orIt is enough to find the root cause of the problem, without the need to introduce a new pin, and waste time merging and Par. 5. The timing of simulation is sufficient. With the design principle of clock synchronization, the functions of digital circuits can be verified through simulation. Simulation results and FPGA-Image is equivalent. Of course

Abstract: This paper introduces the working principle of the FIR extraction filter, focuses on the method of using xc2v1000 to implement the FIR extraction filter, and gives the simulation waveform and design features.Key words: FIR Filter extraction; pipeline operation; FPGA It is complicated to use FPGA to implement the extraction filter, mainly because FPGA la

, that is, the operation of a 3x3 pixel:P = P11 | | P12 | | P13 | | P21 | | P22 | | P23 | | P31 | | P32 | | P33In HDL, in order to change the speed through the area, we will change the type as follows:P1 = P11 | | P12 | | P13P2 = P21 | | P22 | | P23P3 = P31 | | P32 | | P33P = P1 | | P2 | | P3, that is, the results of corrosion operations can be achieved by the operation of 2 clocks/stepsSimulation of expansion operationThe above simulation is my previous simulation with Modelsim, here is not rep

) light the first led and delay for a period of time. 2) light the second led and delay for a period of time. 3) light the third led and delay for a period of time. 4) light the fourth led and delay for a period of time. 5) Repeat the first step. From the above point of view, we understand that "the generation of the effect of the water lamp" mainly follows five steps in order. This may be a natural way of thinking. Humans are really strange animals. Although human brains operate in pa

Xilinx FPGA learning notes 1-chipscope cannot observe the signal BUFG, xilinx-chipscope Today, I started to try to use chipscope and wrote a simple routine of the Water lamp. There was no problem when I started the Integrated Wiring. However, after chipscope was added, an error was always reported. First case: Using chipscope cannot directly observe the global clock signal, that is, the BUFG signal ----- X The error is as follows: ERROR: Location: 113

Tags: FPGAIn some FPGAs, floating point numbers cannot be operated directly, but only fixed points can be used for numerical operations. For FPGA, the book involved in mathematical operations is a 16-bit integer number. What if there is a decimal number in the mathematical operation? You must know that FPGA is powerless to decimal places. One solution is to adopt calibration. The number calibration is to in

Debug fiber Interface interface with FPGA:Due to the needs of the project, the previous period of time debugging the optical fiber interface, recording some design experience.In the design, FPGA is used to control optical fiber module to complete the transmission of optical fiber data, FPGA uses Xilinx company's Spartan6 lx45t, because of its internal 2 GTP transceiver, can be used as a variety of communica

resolution limit, so in people's opinion LED will always glow but low brightness. Not all peripherals, however, can withstand frequencies as high as 1.5MHz. Many devices contain transistors, but the transistor is a cutoff frequency limit problem, when the output pin through the transistor to amplify the output current, the high frequency will cause the output to fail, so in most cases we need to reduce the PWM output frequency. An arbitrary integer divider can be obtained using the ring

This article is from the "Advanced FPGA Design" corresponding to the Chinese version of "High-level FPGA, architecture, implementation, and optimization" in the first chapter of the contentThe improvement of timing in FPGA, I believe is also one of the most concerned about the topic, in this book listed some methods to provide reference.1, insert register (add re

Whether it is MIPS, Nios II, Microblaze, MSP430, 8051, OpenRISC, OpenSPARC, leon2/leon3, etc. soft core processor, When implemented on an FPGA, we typically need a portion of the on-chip RAM storage bootloader, which can be used with GCC objcopy to bootloader text, exception vector, rodata, data or BSS and so on you need to copy out, you can generate binary files through-o binary, you can use-J. Section to extract the section you want, of course, you

1 Speed and areaThe overall optimization level will reach the speed and area of the RTL to take advantage of the logical topology.For FPGA due to lack of knowledge in the backend, gate-level optimization. In general, higher speeds require higher parallelism and greater area, but in some special cases this is not the case. Because the layout and cabling of FPGA have the second order effect.Until the layout i

I. SummaryThe method of allocating and preserving FPGA pins in Quartus II is summarized.second, the Pin allocation methodThe FPGA pin assignment, in addition to the QII software, select the "Assignments->pin" tab (or click the button), open the Pin Planner, assign the PIN, there are the following 2 ways.method One: Import AssignmentsStep 1:Use Notepad or similar software to create a new TXT file (or CSV fil

Recently in the study of FPGA, I tried to write a button scanning program. Although there is a single-chip microcomputer-based key scanning experience, there are some concepts for the handling of keys.But the single-chip computer program is usually written in C, but also useful compilation, and FPGA is the use of VHDL or Verilog This hardware description language to write. First use VHDL to writeControl pro