View max 3000a device family datasheet from intel fpgasaltera at digikey. For more info, refer to alteras class constraining source synchronous interfaces. The next pages contain the verilog 642001 code of all design examples. The measured rms jitter of the output clock is 3 ps when the input clock is 3 mhz, m is 7, and n is 1 and consumes 53 mw from a supply of 1. The altera clock control block altclkctrl megafunction ip core that you can easily configure with the ip catalog and parameter editor. Megafunction overview user guide altera corporation.
Youll need to actually obtain a clock signal from somewhere. Recommended design practices, quartus ii handbook intel. It is usually more successful if you start with a hello world project and then copy. Digital clock on altera de2 board using verilog youtube. Please update your browser version by november 1, 2017. Please contact me if you find any errors or other problems e. An fpga can use multiple clocks using multiple global lines and clock pins. Max 7000 programmable logic device family data sheet.
Vhdl, verilog hdl, and the altera hardware description language ahdland waveform design entry, compilation and logic synthesis, simulation and timing analysis, and device programming. Manually instantiate bufg component for the clock resource 2. In the pin planner, these special pins are shown with a clock rising edge symbol. This tutorial makes use of the verilog design entry method, in which the user speci. If you want to use addon software, download the files from the additional software tab. The common applications of using this ip core are as follows. Clock networks july 2012 altera corporation cyclone iii device handbook volume 1 figure 51 shows the clock control block. Compile and download the program to your board and a digital clock should be visible on the screen. The signaltap ii embedded logic analyzer is a systemlevel debugging tool that captures and displays signals in circuits designed for implementation in alteras fpgas. Any altera embedded systems development kit, cyclone iii edition max10 evaluation kit add on altera de2115 development and education board arria 10 gx fpga development kit arria 10 gx transceiver signal integrity development kit arria 10 soc development kit arria ii gx development kit arria v gt development kit arria v gx starter kit arria v.
Vhdl, verilog hdl, and the altera hardware description language ahdland waveform desi gn entry, compilation and logic synthesis, simulation and timing analys is, and device programmin g. Two of these clocks can drive the gclk through a clock control block, as shown in figure 51. A dedicated clock pin simply is connected to the internal routing of the fpga in a way that makes it more efficient at carrying clock signals with low skew. Learn more reset an altera m9ks content to 0 powerup value. Asynckarin is an asynchronous framework for fpga written in verilog. For global clock how many clock inputs would you like. Digital clock, fpga seven segment interface, verilog code design examples, logic design lec 1926 duration. Browse other questions tagged verilog vhdl fpga intelfpga or ask your own question. Introduction to digital logic and altera fpgas using the. Frequently asked questions synplify synthesis microsemi. If you build this project yourself, remember to use the pin assignments tool to put rst on global clear and clk on global clock. Max 7000a datasheet intel fpgasaltera view all related products. This tutorial makes use of the verilog design entry method, in which the user. Verilog hdl, vhdl, and other interfaces to popular eda tools from.
In this class, you will use the altera tools, which should be in the lab computers in the basement. How can i assign a pll output clock to a global clock network. The two tools you will use will be quartus and modelsim. If your design will use a lot of the global routing resources and if a particular clock s fanouts can be restricted to a quarter of the device, then choose a pin that can drive a regional clock where the associated logic will be placed. How fpgas work internal ram fpga pins clocks and global lines download cables. It has been tested on a xilinx artix7 board and an altera cycloneiv board. You can assign a pll output clock to a global clock network by using quartus ii software assignment editor or define it in your. Contents are specified in verilog in an initialblock this is the only time you may synthesize an initial block. From the quartus main menu choose filenewdesign filesverilog hdl file then ok. Clock control block altclkctrl megafunction user guide.
Our companies have long been focused on efficiency and reducing system cost with one goal in mind. The first step in this lab is to download the altera design tools, called quartus prime lite edition. Clock domain crossing using systemverilog from sunburst design, inc. This browser does not meet minimum standards for connection to the timekeeping system. Two global clock signals are availa ble in max 7000a devices. When used in conjunction with a solid design foundation, assignments can help us successfully compile our design. This tutorial design uses a pll clock source to drive a simple counter.
Youll use a 50 mhz clock input from the onboard oscillator to drive a counter, and assign an led to one of the counter output bits. Now that you have gotten acquainted with verilog, it is time to learn how you can verify that your verilog code is wellformed. There are numerous labs and online trainings you can take based on this full featured kit. They write vhdl and verilog netlists after synthesis, which can be simulated in order to verify. Device support the sdram controller with avalon interface core supports all altera device families. Each clock forms a clock domain inside the fpga, and care needs to be.
Getting started with fpga design using altera coert vonk. In your favorite search engine, search for verilog clock divider. How to understand the term clock region in xilinx fpga quora. Over,000 customers count on alteras renowned fpgas, cplds, and asics. The example includes a veriloginfered m4k block, an altsynram block, and a pll. Stack overflow for teams is a private, secure spot for you and your coworkers to find and share information. Two global clock signals are availa ble in max 3000a devices. Theres a comment at the top explaining how to drive it. The example includes a verilog infered m4k block, an altsynram block, and a pll. Global clock high time ch t global clock low time cl t array clock setup time asu t array clock hold time ah altera corporation max 7000 programmable logic device family data sheet note 1 conditions 5 min max 7 1. The archive includes a signal tap module to probe the counter and selected memory data. Verilog hdl blackbox file selected synthesis area and timing estimation netlist selected.
Youll learn to compile verilog code, make pin assignments, create timing constraints, and then program the fpga to blink one of the eight green user leds on the board. Most fpga designs use at least one clock that is generated outside the fpga and then fed to the fpga through one pin. Description to force a signal to use a global clock, use the following ahdl function prototype the port name and order also apply to verilog hdl. All software and components downloaded into the same temporary directory are automatically installed. Altera recommends using the clk p pins for optimal performance when you use singleended clock inputs to drive the plls. To go from 50mhz to 1hz you can use a counter or a series of counters.
How do i increase the number of global clock buffers used in my design. Flipflops and combinatorial logic in each clock domain. Driving a pll over a global or regional clock can lead to higher jitter at the pll input, and the pll will not be able to fully compensate for the global or regional clock. Download the software including the free modelsimaltera package. Intel max 10 devices support global clock gclk networks. This approach leads to a potential timing problem caused by the clock skew on the de2 board, which can be. This causes xilinx implementation tools to place the clocks at the global clock pin locations in fpga. Synplify automatically inserts primary global clock buffers bufgp to clock signals. Epm3032a datasheet442 pages altera programmable logic.
There is no sufficient differences between verilog and system verilog, expectantly for this kind of design. Dynamic clock source selectionwhen using the clock control block, you can select the dynamic clock source that drives the global clock network. Auto1 allows the compiler to pick the best clock buffer to use. Welcome to altera and the world of programmable logic. Before moving ahead, i like to shorten the path names in the quartus settings file. Clock configuration vhdl coding altera de1 audio codec chip. This is just a 74hc244 tristate buffer on a parallel port. If you are asking question to find more information about clock regions about a specific product then search online with xilinx part family and clock resources and it will turn up the result. Once you have this, you can add the following code to the.
How to load a text file into fpga using verilog hdl 15. Verilog, and the altera environment tutorial table of contents 1. Programming and configuring the fpga device appendix. The quartus ii system includes full support for all of the popular methods of entering a description of the desired circuit into a cad system. How do i force a signal to use a global clock in vhdl. Vefilog global clock network consists of up to 16global clock lines that drive throughout the entire device.
This document presents a very quick introduction to the use of quartus to design a system using verilog. Max 7000 programmable logic device family data sheet the max 7000 architecture includes four dedicated inputs that can be used as generalpurpose inputs or as highspeed, global control signals clock, clear, and two output enable signals for each macrocell and io pin. How to understand the term clock region in xilinx fpga. Each pll generates five clock outputs through the c40 counters. To drive global buffer from the nondedicated regular io, users should do the following. Clock control block altclkctrl megafunction february 2014 altera corporation user guide how do you want to use the altclkctrl. Just make sure you use a clock pin only them have the ability to drive global lines. For global clock allows a clock signal to reach all parts. Creating a new megafunction using the quartus ii megawizard plugin manager page 5.
Figure 1 shows the architecture of epm7032, epm7064, and epm7096 devices. Led design, you will write verilog hdl code for a simple 32bit counter, add a. May 05, 2014 digital clock, fpga seven segment interface, verilog code design examples, logic design lec 1926 duration. The maximator board is easy to expand with arudino uno r3 style connectors and free ip core libraries from altera, available as a part of quartus prime software. The design worked well with the state machine triggered on the negative clock edge. Epm3032a datasheet242 pages altera programmable logic. The maximator starter board set includes all you need for rapid fpga development. View max 7000a datasheet from intel fpgasaltera at digikey. We can use the compiler to run a full compilation, or we can run the individual modules separately. Design and implement a programmable clock generator. For each flipflop inside the fpga, its clock domain is easy to determine. For the lower complexity altera fpga devices, the quartus prime lite design tools are entirely free.
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