altera quartus ii

only be input, Xilinx's CLK pin is not used for clock input, can be used as normal IO.Need to be very careful!!! Two companies on the pin type of the detailed definition, although many similar, but there are a lot of different Oh!!!(3) Altera's IO feature does not have a pull-down resistor! Xilinx's IO structure also has a pull-down resistor.I developed a project encountered such a problem: the transmitter, the power is required to output low level. In the use of a company's Cyclone3, in the co

Source of the problem:The serial data interface is debugged, and the data line is expected to be nanosecond-delay in CPLD (EPM570).Resolution process:--Using Insert Lcell to delay, Lcell delay is relatively fixed but will be affected by temperature, device and other factors;The Insert method is as follows:Wire ad1_ch0_wire; = adc_b0; Lcell U0_lcell/** * ( . inch (Ad1_ch0_wire), . out (Ad1_ch0) );Note that need /* Synthesis keep */To keep Lcell is not optimized in

In Chip Planner, when you watch your feet, you'll see the pin and pad appear at the same time,such as pin120/pad174 Bank 4So what's the difference?Pin refers to the chip is packaged in the pin, that is, the user sees the pin;Pad is the pin of the wafer, is encapsulated in the inside of the chip, the user can not see.There is also a wire connection between the pad and the pin.Pad also refers to the input and output buffer/register unit.Further in the Resource property Editor see the PAD as follow

I don't know if you're using Quartus II 15.0 in a Windows 10 64-bit system environment. No, the process of creating a new project is to select a list of devices that cannot be pulled down and see only one device model, as shown in 1.Figure 1at first I made the mistake of thinking that the Cyclone IV E series of the Quartus II 15 software contains only one device. Later, after trying to find the left mouse b

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

NIOS/s NIOS/enios II/F-1.105, niosii/S-0.518, niosii/e-0.107 (1) header file # Include "system. H" // contains the basic hardware description# Include "altera_avalon_timer_regs.h" // defines the kernel register ing to provide symbolic access to the underlying hardware# Include "altera_avalon_pio_regs.h" // contains basic I/O port information# Include "alt_types.h" // the data type defined by Altera (alt_8, etc)# Include "sys/alt_irq.h" // interrupt

AbstractIt cannot be detected in SignalTap II Reg and wire. It is mainly because of the Quartus II connector, Which is set in the Quartus II connector, you can increase the number that SignalTap II can detect. IntroductionUse environment: US us II 8.0 In (original) How to Use SignalTap II to inspect Reg and wire values? In (SOC) (OpenGL) (Quartus II) (SignalT

There are two ways to quartus software allocation pins, one is to select the menu "Assignments->pins" into the Pin assignment view manual allocation, the second method is to use the Tcl script file automatically assigned. Here I will introduce the second method.1. Generate Tcl file, operation in legend orderWhere the TCL Script file name is the file path2 Locate the "set_location_assignment" field edit pin.The first time the formulation, there is no s

I used the simulation software of Quartus II 13. When I was doing a VGA experiment, I used 640*480 images, so I needed 307200 * 1bit Rom. However, the maximum Rom size that megawizard-plug-in-manager can generate is 65536 * 1bit. 1 and 2. Here we will talk about how to increase the ROM size. First, follow the general Rom steps to create the ROM file you need, for example, I create a mem. v's file election lasted 65536. open the file and modify the thr

1, [Problem] pin planner usage problems: In Quartus I 7.2, Time Series Simulation However, the timing simulation changes once pin planner is used to set the pin, which is inconsistent with the functional simulation results and is not an ideal result. What should I pay attention to when using pin planner? [Answer] If timing simulation is performed when no pin is set, the subsequent simulation will be inaccurate. Because after the PIN is set, y

AbstractWhen we want to send the entire Quartus II project to others through email or MSN, we want the entire project to have the least number of records, how can we optimize our dynamic route? IntroductionAvailable versions: Quartus II versions Sometimes a friend will send me a whole Quartus II project through email or MSN for a study. There was a project na

Quartus II software commonly used in the allocation of pins in two ways, one is to select the menu "Assignments->pin Planner" into the PIN allocation view manual distribution; The second method is to automatically allocate the TCL script file. First of all, introduce Quartus II QSF documents and TCL documents. The QSF (Quartus settings file) file is an engineeri

Quartus II is a powerful EDA software. In this inherited development environment, PLD users can complete a full set of PLD development processes, such as editing, compiling, simulation, integration, layout and wiring, timing analysis, generating programming files, and programming.Quartus II manages files in projects. This ensures the independence and integrity of design documents.Because Quartus II has many

AbstractThe US us II environment will place all the cases under the root project, causing too many root project cases and inconvenient management, if you can place the final result system under another category, it will help you manage it in the future. IntroductionUse environment: US us II 8.0 In (original release), how does one eliminate the code left by the embedded part of the system? I have proposed a project management method in the (SOC) (system definition) (system, leave the root cat

Example Flow Lamp Figure 1 Example Step 1: In Quartus II, click File-> convert programming files... Open programming file conversionProgram, 2. Figure 2 interface of the program file conversion program In this interface. In programming file type: Label, select JTAG indirect configuration file (. JJC); in configuration device: Label, select the type of the source type, and I select epcs4. In the input file to convert box, click flash lead

ArticleDirectory Quartus Modelsim initialization Problems Quartus Modelsim initialization Problems The problem is not me alone: http://bbs.ednchina.com/BLOG_ARTICLE_271118.HTM In the impression, it is zero by default if it is not given to the beginning! However, if Modelsim does not assign an initial value, it is not zero. If it is not written in the reset, an error is inevitable. So rigorousCode

Step 1 Create or open the Quartus II project, and use the qii built-in text editor to open the HDL file. Figure 1 open the HDL file with the qii Text Editor Step 2 Select File> Create/update> creat symbol files for current file, and wait until the screen shown in Figure 3 appears. Figure 2 select creat symbol files for current file Figure 3 created successfully Now, you can open the BSF file through File> open. Figure 4 generated

Prerequisites: Before the plan Ahead, XPS, SDK to build Xilinx Zynq 7000 (zerdboard) on-line test of PS and PL, try to define the platform, bus and DMA, see the previous blog.Take the strike, last time. Altera's Nios II on the 3C120 chip RAM running light test.Platform: Quartus + NIOS II EDK 10,3c120+epcs16 (+) +CFI Flash + Sdram (Sram), which is standard.1, build Quartus hardware platform:The Pll+le module