xeon fpga

Link: http://www.altera.com.cn/literature/wp/wp-01166-bdti-altera-floating-point-dsp.pdf In the future, it will be more meaningful to conduct a comparison test of Xilinx DSP architecture FPGA based on the testing method in this article. But remember: the human brain is the best optimizer! Introduction: OverviewFPGAs are increasingly used as Parallel Processing engines for demanding digitalSignal processing applications. benchmark results show that on

I. Summary Summarize the distribution and storage methods of FPGA pins in US us II. Ii. Pin Allocation Method In addition to qii software, you can select the "assignments-> pin" label (or click the button) to open the pin planner and assign the pin. The following two methods are available for Pin allocation. Method 1: Import assignments Step 1: Use notepad or similar software to create a TXT file (or CSV file) and write the pin distribu

In FPGA code design, remember to have a "principle". For three-state ports, try to use three-state ports in the top-layer modules instead of internal sub-modules. Otherwise, there will be a series of problems, I have always followed this principle to design the code. The figure shows a little curious. in the computer, most modules mounted on the bus are in three states, as a result, each of the three-state sub-modules connects to the outside through a

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

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

//////////////////////////////////////// ////////////////// /************ 50000000 = 500*100*1000 ******************/ Always @ (posedge clk_50m) begin If (! Rst_n | cnt1k = 10 'd499) cnt1k Else if (clk_1k) cnt1k Else cnt1k End Always @ (posedge clk_50m) begin If (! Rst_n) clk_1hz Else if (cnt1k = 10 'd249 clk_1k) clk_1hz Else clk_1hz End 2. Data Path Selection In some system designs, you often need to select a data path and determine its validity. The following describes how to use a f

zookeeper messages of Quartus II and niosii are vague, it is entirely necessary to rely on the "economic" and the "economic" without making any mistakes. See also (originally known) How can we determine the semi-complete information of the timestamp of the niosii that does not match? (IC design) (de2) (nio ii) (SOPC us II) (FPGA builder) (formerly known) de2_nios_lite 1.0 (SOC) (de2) (original topology) How can we determine the distributed agg

. I have already discussed this part in detail. I 'd like to explain it briefly here. Open the Quartus II software, and double-click the kernel to go To the FPGA builder. After entering, we will create a PIO module, and there is a difference in the creation process. Let's take a look, as shown in, at Red Circle 1, we enter 1, because we only need one button (five buttons in the black gold Development Board), and input ports only is selected for the

AbstractIn Quartus II 8.1, Quartus II handbook version 8.1 Vol.4 has made some changes to the nameing Convention of aveon signal type. IntroductionUse environment: US us II 8.1 In Quartus II handbook version 8.1 Vol.4 p.6-4, Altera announced the latest naming convention. The overall change is not significant. It is worth noting that the change of the conductor interface is only one, rather than the original one. I think this change is reasonable, in the past, I had never understood the diff

De2 calendar year code BytesGlobal user instance Http://www.terasic.com.cn/cgi-bin/page/archive.pl? Language = China categoryno = NO = 330 partno = 2 Blog of other Daniel Http://blog.ednchina.com/riple/47380/message.aspx Http://www.cnblogs.com/oomusou/archive/2008/08/11/verilog_edge_detection_circuit.html Altera began to like cookbook. Advanced synthesis cookbook: A Design Guide for Stratix II, Stratix III, and Stratix IV devices May 2007 An 470: Best practices for incremental compi

. Sof file you used is the same as the. Sof file used by the niosii software. Especially if you use Quartus II web edition, _ time_limited.sof will be generated, not the original project name. sof, but because the PTF corresponds to _ time_limited.sof, it is possible to abort without caution. sof.If it fails, skip step 2. Step 2:Import de2_nios.sof of de2 reference design into de2, use Hello World project template, and then import. Sof of your project. I do not know the reason for the license

TI Reference Links:http://www.ti.com.cn/general/cn/docs/gencontent.tsp?contentId=50741----------------------------------------------------------------------------Note Swrite: Stream Write, the data length must be an integer multiple of 8 bytes and does not require a receive-side response. Swrite is the most efficient transmission format, with a lower efficiency for write or read operations with response, and generally only half the efficiency of a non-responsive transmission. -----------

rotary_right;Assign Rotary_left_pos =!rotary_left_reg rotary_left;//ShakeAssign rotary_event = Rotary_right_pos | | rotary_left_pos;//rotation flag bit[Email protected] (Posedge Clk,negedge rst_n) beginif (!rst_n)Shift_d else if (rotary_event) beginif (Rotary_right_pos)Shift_d if (Rotary_left_pos)Shift_d EndEndAssign LED = left-to-right test module for shift_d;//lampEndmodulePrinciple, you can refer to the http://www.eeboard.com/bbs/forum.php?mod=viewthreadtid=45184highlight=%E5%B0%8F%E8%84 o

Use two count modules to count each, get two waveforms for basic and or complete operation. Directly post the code section below.1 ModuleDiv_freq (2 ICLK,3 Irst_n,4 OCLK5 );6 7 input WireICLK;8 input WireIrst_n;9 OutputOCLK;Ten One parameterN =4'd5; A - Regclk_p; - Reg[3:0] cnt_p; the always@ (PosedgeIclkor NegedgeIrst_n)begin - if(!irst_n) -Cnt_p 4'D0; - Else if(cnt_p = = N-1) +Cnt_p 4'D0; - Else +Cnt_p 1'B1; A End at always@ (PosedgeIclkor NegedgeIrst_n)begin - if(

Bcd:binary Coded Decimal is a 4-bit binary encoding that represents a 1-bit decimal number.Definition: BCD code This encoding form uses four bits to store a decimal digit, making the conversion between binary and decimal fast. This coding technique is most commonly used in the design of accounting systems, because the accounting system often requires accurate calculations of long numbers of strings. Relative to the general floating-point notation, the use of BCD code, both to preserve the accura

Generate TCL files on your own initiativeProject -> Generate Tcl File for Project...Popup such as the following dialog box. Sets the script path.Edit PinUse set_location_assignment distribution pins such as the following:The first time the preparation. Without set_location_assignment a statement, set_global_assignment you can do so by adding a line under the statement.Running TCL scriptsTools -> Tcl Scripts...Select the newly created TCL file and click Run to execute it!Faq1. Why there is no inp