quartus ii

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 demonstration, after the construction of the project

10K pull-up resistor to 3.3V.Ten. Dev_oeI/O foot or global I/O enable foot. In the Quartus II software you can enable the Dev_oe option (enable device-wideoutput enable), if this function is enabled, the foot can be the global I/O enable foot, the function of this foot is, if it is low, all I/O are in the tri-state.Init_done.I/O foot or open-drain output pin. When the foot is enabled, the jump from low to high on the foot indicates that the FPGA has

in the register, and outputs the parallel data to Port Data-out. After the 8 data bits are shifted to the register, the receiving module detects whether the last digit of the input data string is 1 (stop bit) to determine if the received data frame is wrong, and if not 1, the output Framing-error 1.3 simulation Verification in the experiment, the author chooses Altera company's Cyclone series of EP1C12Q240C8 chip, the hardware description language uses Verilog HDL,

(. sdo) files, Used for timing simulation of the design (after simulation), after the simulate waveform, you can see the input and output signal there is a delay. After building the project and design, you can use the Settings dialog box in the Quartus II software Assignment menu,The assignment Editor, pin Planner, Design partitions window, and Timing Closure layout map Specify initial design constraints, such as PIN assignment, device options, logic

quartusii and then open timequest with the tools–> timequest time Aanlyzer command. In the Timequest Tasks window, locate the report clocks and double-click on it, Timequest will give the clock information that was successfully added in the design on the right main window. As shown, you can see clk_in, whose type is the reference clock, the period is 40ns, the frequency of 25mhz,targets is clk_in, which means that the clock is connected to the clk_in port. This means that the command above Crea

process starts. When the nconfig foot is set to low, the CII is reset and enters the reset state. The nstatus and conf_done feet are set to low, and all the I/O feet enter three states. The nconfig signal must be at least 2us. When nconfig returns to the high status, nstatus is released again. Reconfiguration begins. In the actual application process, the nconfig foot can be connected to a 10 k pull-up resistor to 3.3 V. 40/56. dev_oe I/O foot or global I/O enable foot. You can enable the d

frequencies can be output according to the change of frequency control word K. 2. Principle of arbitrary Frequency Division In some FPGA applications, when the frequency requirement is relatively high, the method of generating a fixed frequency using the principle of phase accumulators is unavoidable. We stipulate that the CNT should be split in half 50% as follows: (1) When, that is, low level; (2) When, fo = 1, that is, high level. Same as above: Used in FPGACodeA

(1) OpenGLCode /*************************************** ****************************** Module name: crazy_key* Author: crazy bingo* Device: ep2c8q208c8* Version: Quartus II 10.1* Date: 2011-3-2* Description:**************************************** *****************************/Module crazy_key(// Aveon clockInput csi_clk,Input csi_rst_n,// Aveon-mmInput avs_chipselect,Input [1:0] avs_address, // multiple of 4// Input [1:0] avs_byteenable_n, // 128In

, the start signal is required. Either the end signal or the response signal can be used. It is the sequence diagram of the IIC bus. After a brief introduction, let's start practicing it. Hardware development First, you need to add two I/O modules in the soft core, and name them As SCL and SDA. In this case, the check box creates ports only (output only) for output, and the SDA is Bidirection (tristate) port (bidirectional), as shown in Next, we will automatically allocate the addr

underlying driverCode, Write according to the time sequence to make it easier /*************************************** ****************************** Module name: vga_driver* Author: crazy bingo* Device: ep2c8q208c8n* Version: Quartus II 9.1* Date: 2011/2/15* Description: dispaly programs for the VGA**************************************** *****************************//*************************************** ****************************** Revision

can directly connect the nconfig foot to the VCC or to the ninit_conf foot of the configuration chip. This foot carries the input buffer and supports the Lag Function of the Schmidt trigger. In user mode, the nconfig signal is used to initialize reconfiguration. When the nconfig script is set to low, the initialization process starts. When the nconfig foot is set to low, the CII is reset and enters the reset state. The nstatus and conf_done feet are set to low, and all the I/O feet enter three

based on FPGA-Quartus II (hardware) 2 [original] [serialization]. Simple Digital Photo Frame Based on the System-nioii sbte part (software part)-Configuration 3 [original] [serialization]. Simple Digital Photo Frame Based on FPGA-nioii sbte part (software part)-SD card (SPI mode) Driver 4 [original] [serialization]. Easy digital photo frame based on systems-nioii sbte part (software part)-TFT-LCD (ili9325 Controller) Drive 5 [original] [serializa

AbstractThe most noteworthy aspect of the concept is the adequacy of the concept. As a result, render manager has already created a niosii SBT project. You can also change the architecture and IP address of fpga rtl or qsys, at this time, what steps should the niosii SBT project perform to reflect the modified hardware architecture? Is it generate BSP? Or should it be BSP editor? Or should I build a project? What is the sort order of the distinct rows? IntroductionEnvironment: Windows XP SP3 +

: add2_always_good.v 5 Compiler: Quartus II 8.0 6 Description: Demo How to Write y = a + B; 7 Release: 10/04/2008 1.0 8 */ 9 10 Module Add2_always_good ( 11 Input Iclk, 12 Input Irst_n, 13 Input [ 7 : 0 ] IA, 14 Input [ 7 : 0 ] IB, 15 Output Reg [ 8 : 0 ] Osum 16 ); 17 18 Reg [ 7 : 0 ] A, B; 19 20 Always @( Posedge

AbstractSince the CPU speed is too fast, many people cannot see the result at all. Therefore, how can we find C in the case of niosii if we want to stop running for n seconds and then try again? IntroductionEnvironment: US us II 7.2 SP3 + niosii eds 7.2 SP3 + de2 (Cyclone II ep2c35f627c6)This example uses(Formerly known) de2_nios_lite 1.1 (SOC) (nano II) (Systems builder) (μC/OS-II) (de2)For example The usleep () function is provided in unistd. H. You can stop running n micro-seconds. To sto

of C statement for the first notebook program, both anti-manual earthquake and QR code solution should be written in OpenGL. I can hardly understand the power of the speech, in particular, the clock driven idea of hardware is very different from the actual system. Therefore, it is also difficult to find out how to solve the problem by using the kernel. 2. I don't know whether SignalTap is a good thing.When the hacker experiences a bug, the most important thing is the debug tool. In addition,

ArticleDirectory 1 Pio interrupt 2. Timer interruption 2.2 C code for timer interruption 3 tips Introduction Timer interruption. I used to post in Amy's e-forum. I also discussed Pio interruption in my blog. Recently, I found a small mistake in my previous summary. So I wrote a blog post based on my recent experience in touch screen. Software and hardware environment Hardware: Amy ep2c8 core board + 2.4 'tft Kit Software: Altera