not the default to do I/O. However, it is important to note that this foot does not support open-drain and reverse. When it is crc_error, the high output indicates a CRC checksum error (an error occurred while configuring the SRAM bits). The support of the CRC circuit can be added in the setting. This foot is generally used in conjunction with nconfig feet. That is, if the configuration process fails, reconfigure.4.i/o,clkusrWhen the Enable user-supplled start-up clock (CLKUSR) option is turned
The first FPGA project ---- lit 3 LEDs on the Development Board1. new FPGA Project Open the Quartus2 screenFile--new Project Wizard: Specify the path and project name of the projectSpecify the FPGA device model you are using2. Add a design fileThis design uses Verilog HDL Hardware Description Language model3. ModelingThe design has three output, no input, these
0 IntroductionWith the widespread popularization and application of embedded system, UART (Universal asynchronous Receiver Transmiller) is widely used as a serial data transmission method. The UART allows full-duplex communication on a serial link. Serial Peripherals to Rs 232-c Asynchronous serial interface is typically implemented using a dedicated integrated circuit, the UART. Common serial interface chips such as 8250, 8251, NS16450, etc., can achieve a more comprehensive serial communicatio
ReproducedSqueeze dry FPGA on-chip storage resourcesRemember long long ago, the privileged classmate wrote a short blog "m4k usage", the article mentions the cyclone device embedded storage block M4K configuration problems. The article mentions that this m4k block in addition to the storage size is limited 4Kbit, its configurable port number is also limited, usually up to 36 ports available.At the time, it was simply mentioned that there was such a th
program code. After compiled assembly machine code is loaded into the virtual ROM, you can start simulation by loading the data involved in the calculation into the virtual Ram.
Machine code address Assembly mnemonic comments
@ 00 // address Declaration
101000011000 // 00 begin: LDA data_2
2017_0001
011_11000 // 02 and data_3
2017_0010
100_11000 // 04 XOR data_2
2017_0001 00000000000 // 06 skz
2017_0000
000_00000 // 08 hlt // and does't work
6. debugging
The most basi
Baidu uses FPGA to accelerate SQL queries on a large scaleGuideAlthough our focus on Baidu's work this year is focused on the deep learning initiatives of the Chinese search giant, many others are critical, although not so cutting-edge applications present challenges brought about by big data.
As Baidu's Ouyang Jian talked about at this week's Hot Chips conference, Baidu has over 1 EB of data, processes about 100 PB of data every day, and updates 10 b
The clock is the most important and special signal of the entire circuit. Most devices in the system are operated on the hop-on-line of the clock, which requires that the delay deviation of the clock signal be very small, otherwise, the timing logic status may be wrong. Therefore, it is very important to clarify the factors that determine the system clock in FPGA design and minimize the latency of the clock to ensure the stability of the design.
1.1
There are a lot of resources in the library. Here we will also make a brief record. If you work in the future, you will need to use previous knowledge for future reference. I will also give a brief introduction to books.
Study books on niosii
[1]Basic Technical tutorialEdited by GUO Yong
[2]An embedded system tutorial on the Part 1 (Part 1)Prepared by Zhou licong and others by Beijing University of Aeronautics and Astronautics Press
These two are good introductory books that introduce th
Recently, the great god of end China, a faint bean, published the blog fpga r D path (25)-pin, I just got a new book titled deep understanding of Altera FPGA application design. Here we will organize the knowledge of the two. I/O feature notes for the cyclone IV device will be added later.
In the previous article, the pin introduction in Altera FPGA has provided
1. OverviewThis design uses the FPGA technology, realizes the 8051 monolithic microcomputer soft core in the FPGA, the external SPI Flash code data loads into the FPGA internal RAM, then resets the MC8051, realizes the external flash startup MC8051.2. System Block Diagram8051 uses Oregano Systems Inc. open source MC8051 soft core. SPI Flash uses the W25Q16 chip t
Not much understanding of the FPGA global Clock, thus reprinted a document:Http://xilinx.eetop.cn/?action-viewnews-itemid-42At present, synchronous sequential circuits are generally recommended for large designs. The synchronous sequential circuit is based on the design of Clock trigger, which puts forward higher requirements for clock cycle, duty ratio, delay and jitter. In order to meet the requirements of synchronous timing design, the design of th
FPGA-based 160-Channel Data Collection System Design Time: 09:50:21 Source: foreign electronic components Author: Wang yongshui, Ren Yongfeng, Jiao xinquan
L Introduction
With the development of science and technology and the national economy, the demand for electric energy is increasing, and the demand for power quality is also increasing. This poses a challenge to power quality monitoring. The monitoring of power quality usually requires multi-chan
ArticleDirectory
Clock offset
I. Area Structure Design
1. the folding assembly line can optimize the area of the assembly line design for the pipeline-level replication logic. The method of "folding Pipeline" is the opposite of "disassembling the loop", and is an area and speed interchange method.
2. shared logical resources sometimes require dedicated control circuits to determine which components are input to a specific structure. In some applications, resource input is often m
vc709e Enhanced Xilinx Vertex-7 FPGA V7 xc7vx690t PCIeX8 interface card based on FMC interface
first, the Board of Cards overviewBased on Xilinx's FPGA xc7vx690t-ffg1761i chip, the board supports FMC connectors with PCIeX8, 64bit DDR3 capacity 2GBYTE,HPC, Board supports a variety of interface inputs, and software supports Windows.second, functional and technical indicators:1, Standard PCI-E int
Image signal Processing Board of dual Tms320c6678+xilinx FPGA K7 xc7k420t based on 6U VPX
The integrated image processing hardware platform includes 2 blocks of image signal Processing Board, 1 blocks of video processing board, 1 blocks of main control Board, 1 blocks of power Plate, and 1 blocks of VPX backplane.First, the Board of Cards overviewThe image signal Processing board includes 2-piece TI multicore DSP processor-tms320c6678,1 C
This network to multi-port module can easily realize the data transparent transmission between network equipment and multiple serial devices.This scheme is based on fpga+w5500. The serial port part uses the serial data to send and receive the hardware accelerator, make full use of the buff and FIFO resources, and greatly improve the data scheduling ability of 16 serial port. At the same time, the network part uses Toe technology's W5500, thus greatly
Application Specific intergrated circuits (ASIC) is an integrated circuit designed and manufactured according to the requirements of specific users and specific electronic systems.
FPGA, short for field programmable gate array, is a field programmable gate array. It is a product of further development on the basis of PAL, gal, PLD and other programmable devices.
As a semi-customized circuit in the specialized Integrated Circuit (ASIC) field, it not
Most FPGA developers are accustomed to graphical interfaces (GUIs). The GUI approach is easy to learn and provides a one-click process for small projects. However, as FPGA projects become more complex, in many cases GUI tools hinder productivity. Because GUI tools do not provide sufficient flexibility and control over the entire development process. On the other side, the GUI tool itself consumes a large am
The implementation of the Arduino and FPGA interaction, of course, there is no new protocol, or based on serial communication, now learn a serial communication can basically drive most modules, and with a variety of single-chip computer seamless data interaction, Arduino because of its powerful library function support, in the implementation of many things will be convenient many , such as serial communication, Arduino on two lines of code, Verilog at
sure the card is the latest CC1606, so that you can directly download the corresponding firmware and JIC file directly in the website to use.Figure 3, CC1601 and CC1606 comparison chartFigure 4, CC1606 with mt9p031 working effectSecond, the transplant considerations1, reference CC1601 and CC1606 principle drawing comparison control pins (OE, CS, RD, WR, SDA, SCL, etc.)2. Download USB firmware (ICAMERA_NOINIT.IIC)3. Upgrading the FPGA program (JIC)4.
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