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to be followed when they are used. 7. Unexpected pain points may occur when IP addresses are used. Therefore, do not use assumptions to imagine the Module Settings. Instead, try to adapt to the environment and configure your own design. As an FPGA player, this ability to change according to the environment is required. 8. Considering cashes settings, there are two types of cash: one is used for instruction caching and the other is used for d
prompting you to design the output of the BUFG to a non-clock pin, which is the ILA logic.In S6, it is recommended that the global clock output only connect to the clock pins, otherwise it is difficult to cause cabling problems easily. The constraint of adding clock_dedicated_route can reduce this error to alarm and continue to run layout and cabling. It is important to note that this constraint does not force the CLK_WE signal to pass through BUFG, but rather tells the tool to ignore such non-
Fanout, that is, fan-out, refers to the module directly called the number of sub-modules, if this value is too large, the FPGA directly displayed as net delay is larger, not conducive to timing convergence. Therefore, you should try to avoid high fan-out when writing code. However, in some special cases, the need of the overall structure design or the inability to modify the code constraints, you need to solve the problem of high fan out through other
) Synchronization of data between MCU side and FPGA end.SPI data from the MCU output, MCU and FPGA is not the same clock domain, you can use the simplest D trigger to achieve data synchronization. The edge detection of the rising edge requires two D flip-flops, in order to ensure the synchronization of the SPI data, the other signals are also synchronized through two levels of trigger output.Access Spi_data
cc1605cc1604 USB3.0+FPGA high-speed video acquisition binocular camera evaluationCamera configuration: ov5640, OV5642, mt9p031, mt9m001c12stmOV5640xclk:24mpclk:80m1080p (1920*1080) 30fpsOV56425M (2560*1920) 17fpsmt9p031xclk:48mUsing the PLL5M (2560*1920) 23fps1080p (1920*1080) 46fpsHardware effectsHardware interface1080p 23fpsBinocular 2592*1944 4.2fps2560*1920 resolution under frame rate 17fps2560*1920 Frame rate 22fpsReal shot effect, the original i
The first experiment simply implements a flashing light program (mainly to review the syntax, simulation, and download process)The basic idea is to use the counter to Count 0.5s, and then change the status of the following led output pins every 0.5sThe hardware circuit is as follows: (the corresponding connection in the FPGA, given in the code comment) 1. In the last created design file, enter the following:(This experiment is mainly to do a demonstr
This post was transferred from: http://www.cnblogs.com/jamesnt/p/3535073.htmlExperiments done on Xilinx ZC7020 's films;ConclusionThe normal IO cannot be used as the clock input of the PLL, the dedicated clock pin can be;The normal IO can be connected to the clock input of the PLL via the BUFG, but to modify the PLL settings input CLK option to select "No Buffer";Specific internal layout assignments can be viewed through Xilinx's FPGA editor,ZYNQ's cl
compilation. If you forget to save it, it is equivalent that you have not modified it. Now let's program C code. In order to standardize the program, I need to make some adjustments to the program for further explanation. Create two folders named driver and main respectively. As shown in, Change hello_world.c to main. C and put it in the main folder. After modification, as shown in Next, let's modify main. in C, I will first introduce the purpose of this Code, which is to control th
Disclaimer: This article is an original work and copyright belongs to the author of this blog.All. If you need to repost, please indicate the sourceHttp://www.cnblogs.com/kingst/ Introduction This section describes how to compileProgramDownload to the Development Board. You need to download the program twice during the development of the program. For the first time, in the Quartus software, we downloaded the configuration file generated by the logic and software to the PV * (* 1,
For AEs whose key length is 128 bitsAlgorithm. 1. the AES algorithm requires 10 rounds of operations. The most basic implementation is 11 cycles. 2. 16 sboxes are used for each round of encryption, and each sbox occupies 1 2048-bit Rom. Key expansion uses four sboxes. If on-the-fly is performed, a total of 20 sboxes are required. If the key expansion is prepared in advance, 16 sboxes and 1408 bits RAM are required to store the subkey. 3. on Altera FPGA
Send character ABCD on PC softwareGrab the bag on the sharkReceiving PIN analysis from FPGA network using Logic AnalyzerData is received and stored in RAM with a bit width of 8bitRead 32bitUDP data from RAM for64636261According to the above phenomenon,Before there was an understanding deviation,The so-called big-endian small end is a reading order different,For UDP data segments, the data composition format is determined by both parties,Only the head
General principles of PCB design Xilinx Learning Experience 1-pin constraints ads7830 FPGA Implementation 11:18:12 | category: Work notes | tags: | large font size, small/medium subscription The ads7830 is an 8-bit, 8-channel AD conversion chip of Ti, Which is configured and read through the I2C interface. The following is a program I have compiled using the OpenGL, which has been verified and is completely OK, the input clock is 125 MHz. After dividi
Preface: Why is it three? I and II are too lazy to move over. For details, see lazy rabbit. The image is scaled. If you cannot see it clearly, click the image to see the big image. As a simulation tool, Modelsim is an indispensable software for CPLD and FPGA. Before performing the simulation, let's talk about the harmonious installation problem. You can download the installation software from www.modelsim.com. The official website provides the latest
Example; This is a question given by the teacher. The goal is to familiarize us with the C language operation of FPGA, so as to prevent low-handed eyes. To be honest, testapp_memory is a test provided by XPS.ProgramThe principle is well understood. It is the process of writing data into and then reading data. However, when talking about our own operations, we also need to use the underlying "address Pointer". It sounds a bit messy, and there is
The first step must be the pin planner, which is the view of the four generations of black gold ep4ce15f17c8. The first is to find that their pin has different color areas, which correspond to different banks respectively. Some designs require that the pin be in the same bank (first, this conjecture is followed by verification ), what does different circles and triangles mean? View --> pin legend In the figure, the pin of several brown backgrounds is used. If you place the cursor on the pin, t
logical replication, we haven't met it yet. Copy the concept first: Logical replication is an optimization method to improve timing conditions by adding area. Its most important application is to adjust the fan-out of signals. In other words, that is, the fan output is very large, so in order to increase the drive capability of this signal, many levels of buffer must be inserted, which increases the path Delay of this signal to a certain extent. In this case, you can assign values to generate t
System:win8.1SDK:Quartus II 14.1FPGA:Cyclone IV1, the Quartus generated . POF Files (configuration Flash can be automatically generated, not discussed here), and Nios generated . Elf files (in the project directory of the Sofeware folder) are copied to the same folder , Here I copy two files to the JIC new Folder in the D drive .2. Create a new file with the suffix . Sh in the JIC folder , and use Notepad to create a new my.sh3. Double-click to open, copy and enter the following code.sof= "Te
* LINUX/DRIVERS/VIDEO/FPGA_FB.C--FPGA Graphics adaptor frame buffer device* Created Sep2011* Based on DNFB.C** History:** This file was subject to the terms and conditions of the GNU general public* License. See the file COPYING in the main directory of this archive* For more details.*/#include #include #include #include #include #include #include #include #include #include #include #include #include #include #define LCD_WIDTH 320#define LCD_HEIGHT 24
modeling of "functional modules. The modeling method complies with the "One module, one function" principle, and adds the description of "graphics" and "Connections" in the most direct way, it improves the "solution" of the "completion module" and the "possibility" of the design ". Of course, the benefits of "low-level modeling" are more than just here. As the modeling engineering degree increases, the advantages of "low-level modeling" will become more and more prominent. Experiment 3 Config
speechless. Is it really a problem with the software version? Students told me that the only difference between a program and a program is whether an error occurs during pin configuration. However, I have checked it many times, and the configuration is correct. But at this time, I found something strange. When you carefully observe the pin planner interface, you can see two options: voltage and current. Pull to option 1. voltage is 3.3 V by default, which is normal. The current option seems to
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