quartus ii

convenience of wiring, but mustAllDDR2All the pins in FPGAThe same or two banksZone(For example, bank3 and bank4, because sometimes one bank zone cannot hold all these pins ).To facilitate the unification of themVccioSpecify the voltage and consider the future PCBEase of wiring, Note thatBankVccioThe voltage must be 1.8 V. In Quartus II, proper pin allocation is also required, and pay attention to theseThe level standard is 1.8 V.. If the related

half of the EPCs chip with the same capacity.When we need to solidify the design of the configuration firmware into the device, there are two ways, the first way, that is, the traditional way is to use a dedicated as interface (independent of the JTAG 10-pin interface) to directly write the configuration chip, which requires a separate as interface on the circuit board, occupy the PCB area. The second way, and now the popular way is through the JTAG interface, through the FPGA chip indirectly b

ObjectiveModelsim is a professional simulation software, especially in the version after the Quartus II 11.0, there is no matching their own simulation software, so modelsim into the FPGA design process for the simulation of the first choice of software.???? Modelsim is a HDL simulation tool that we can use to implement the VHDL or Verilog designSupport the various hardware description Language standards common to IEEE. You can do mixed simulations in

For job requirements, the two high-level language synthesis tools were applied, and the typical algorithms were implemented and evaluated (data is temporarily kept secret).Briefly talk about the experience of using.1. Altera OpenCL SDKFirst, you need to install Quartus (more than 13.1 version) and the supporting Soc EDS, respectively, apply for two license, one for the OpenCL SDK, one for soceds, indispensable.Then need to have implementation platform

using TimequestI am more familiar with Altera, here with Quartus II in the Timequest as explained.The core of the Timequest analysis sequence is the calculation of the delay factor. Then establish the constraint file, to tell Timequest, which place has what kind of constraint, how to constrain.The reason to establish the related network table concept, because we use Quartus II in the Timequest, the approxim

In the installation of DSPBuilder encountered a few small problems, let me feel quite touched: version must be used right!!In the software version I installed:qii11.0+dspb11.0+matlab2011b+questa10.0 (version 10.0 of Modelsim) +win7 systemSince DSPB must be installed prior to installation qii11.0+matlab2011b+questa10.0 (or other compatible version of Modelsim, I use the Questasim)For the different versions of DSP Builder.First of all, the corresponding version of DSPB download Good, this is the k

Key interrupt Hardware Development new schematic diagram1. Open Quartus II 11.0, create a new project, File--New project Wizard ..., ignore introduction, click between? Next> go to the next step. Set up engineering working directory, project name respectively. It is important to note that in the engineering work directory, please use English, do not include spaces, etc., or you may have problems when using the Nios II IDE later. Set as shown in 1. The

Under non-root permissions to run the IDE, such as VIVADO/QUARTUS/CCS, need to use JTAG when the issue of permissions, almost all USB debugging devices under Linux will encounter this problem. Here is an example of how to solve this problem with Xilinx Platform Cable USB.After plugging in the USB, view the deviceLsusb001 006View permissions for this devicels -l/dev/bus/usb/001/006CRW11895 24 :/dev/bus/usb/ 001/006You can see that the current user do

improve the working clock in the synchronization system From the above analysis can be seen in the synchronization system when the D2 to establish time T3 requirements for: T-tco-t2max>=t3 So it is easy to launch the T>=t3+tco+t2max, where T3 for the D2 time tset,t2 for the combinational logic of the delay. In a design T3 and TCO are determined by the device fixed value, controllable also only T2 also when the input of the combination of logic delay, so by minimizing the T2 can improve the syst

Tool: Quartus IIDevice: EP4CE15F17C81.file->new Project Wizard:2. Click on two next to enter Familydevice Settings, select device3.Finish, set up the project finished, click Tools->sopc Builder, enter the name, OK4. Modify Clk_0 to 100MHz5.component Library Search Nios, double-click Nios II processer6.Finish7. Search EPCs, double-click EPCs Serial ... Finish8. Search SDRAM, double-click SDRAM controller, configured as follows, SDRAM chip for H57V2562G

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A MIF file is a memory initialization file, which is used to configure the data in RAM or ROM, which is initialization. Common Build methods: Quartus with the MIF editor generated MIF Software generation Advanced programming language generation The first two methods have a certain flaw, the main introduction of the third method, in accordance with the MIF file format, using the Advanced programming language (Matlab,

I used to be stupid beforeAlways @ (Posedge signal)Such code to detect the rising edge of signal, a lot of problems.After being instructed by a classmate in the lab, he will never do so foolishly. Of course, you won't do that after reading it.The principle of detecting the rising edge: The signal is sampled using a high-frequency clock, so to realize the rising edge detection, the clock frequency must be at least twice times the highest frequency of the signal, or leak detection may occur. See t

Source: http://blog.sina.com.cn/s/blog_3ef1296d0101aob6.html three, FPGA pin allocation file Preservation methodWhen using someone else's project, sometimes can't find his pin file, but can save his already bound pin, output to the file.method One:View pin bindings, Quartus-Assignment, Pins, open the FPGA pin interface, where the pin file can be saved in CSV format (tabular format) and TCL format in the menu of this interface.Step: Select Save n

project, click Create New file to add new files for the project, click Add Existing file for the project to add the existing files, click Create Simulation to add a simulation to the project, click Create New folder to add the catalog to the project. Here we click Add Existing File;The counter.v files, rom.v, ROM_TOP.V, ROM_TST.V files that were designed here are included in the project, and the IP Core library file must be included due to the call to Altera's IP core. The file for ALTERA_MF.V