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39 Threads found on edaboard.com: Nexys 2
Hi, I wrote a software that writes data to the FPGA register, and read the processing results. I found that for repetitive read/write, the software fails to read registers anymore (the DpcPutReg function returns -1) I also tried to make this using Adept software, after some (10~30) reads/writes, I cannot read/write registers anymore and I need
Hello, Can some Guru help me with the starting point to communicate with spartan-6 FPGA on nexys 3 board using USB. I need to send large amount of data using software to the FPGA , so UART solution will be really slow. Appreciate your help
Hi All, I'm working on a project for one of my classes in which I get to implement a design of my choosing, and I am attempting to interface with the on-board Cellular RAM of the nexys-3 Spartan 6 and do asynchronous and synchronous reads and display the data from the memory (which I programmed using the Adept interface) to the 4 SSD's by displ
Hi All, I am a complete newbie to FPGA design and am working on the final project for one of my classes in which we get to design and implement a program of our choosing on the nexys-3 Spartan 6 board. I am trying to design a program that displays images onto a VGA monitor and allows a user to progress through a set of images with a button pr
I'm using a nexys 2 board and I created the application "Hello World". It works and the writing "Hello World" appears on Realterm. After I created a new application and I wrote it on SDK, the .elf file has been successfully created, but my program size is 538 KB and it can't be execute on microblaze, because its local memory is maximum 64 KB. I sho
Hello, I am implementing a clock on nexys 2(Spartan 3e) FPGA, where I am using Push Button as a asynchronous Reset. But I am confused where I should use 2 Stage Synchronizer to synchronize the asynchronous Reset with clock. Should I use it before the Debouncer code or should I use it after Debouncer code. Would kindly appreciate your help.
Hi, I want to obtain a 128 word burst transfer of data from SDRAM to BRAM in nexys 2 board. I have gone throught the nexys 2 reference manual and sample code given at their product page. But that is asynchronous mode read. I want to obtain a burst mode transfer. Also i want to know about the burst transfer to the BRAM from the SDRAM. I am not abl
I am implementing the Transmission Component to be used in the UART that I want to implement on a Spartan 3E nexys 2 FPGA board. The code is attached. On simulating, I find that it is not working properly. The 'prescl' counter that counts till 5208 it not being reset to 0 (on checking I found the count does not reach 2600). Any help is appreciated.
Hi, I am doing VHDL project using nexys2 board. I need to read the sensor readings using matlab through serial communication. My Code: nexys = serial('COM1', 'BaudRate', 9600, 'Parity', 'odd', 'Terminator', '', 'Timeout', 1); fopen(nexys); s = 's'; fwrite(nexys,s,'uchar'); scan_s1 = (...)
Hi, I am a C programmer and I usually work with ucontrollers (I am not a student) and I am trying to learn VHDL. I bought a nexys 2 board and I read some basics. Now, I am trying to do this exercise (pag. 2): however, I get the following error from the compiler: "hexcount.vhd" Line 30. Type of Sout is in
Hello, I want to give the two 6 bit binary numbers to the nexys 2 board and I have to show the multiplication result of those 2 binary numbers on the 7 segment display of the nexys 2 board, I wrote the multiplication program and it is working fine my problem is how to give two sets of 6 bit binary numbers to the nexys 2 board(have only 8 (...)
Hello Everyone, I am trying to design a PDP-8 memory using the nexys-3 board. But I am having a hard time with trying to figure out how to read/write using the CellularRAM on the board. I couldn't find any useful information on Google. Can someone give me an example on how to read/write with CellularRAM? Thank you!
Hi all, I need some help with hummingbird cryptographic algorithm. I have developed the ecryption and decryption in ise 12.3. I need help with implementing it on the FPGA nexys 2 xcs500. My output's are assigned to the LED's. But it does not match the simulation. Every time I program the .bit file through adept, my results keep changing on t
I want to interface ICL 7135 ADC with nexys 2 kit provided by digilent. How to do that?? it contains PMOD connectors. i think that might be helpful, i just want to know, where to connect my adc.
Hello, I have looked a few FPGA boards and some of them as Digilent nexys 2 got signals routed under high frequency oscillators. Isnt that a problem? Or the as the oscillator is shielded there is no issue? Best regards, LR
What's the design you're using? Something you've written yourself, or have you converted the Atlys/nexys 3 demo project? Are you sure the UCF is correct? Does your simulation show that you're sending the correct signals to the display?
Have a nexys2 board, attached to some hardware ADC which is spitting 16bit wide data in serial at 5MHz. I figured it would be trivial to put such data on a computer using such a powerful ASIC, but weeks of research and a 400 page manual later, I'm flustered. Can anyone share wisdom on how to do th
im trying to display a red box on a 640 by 480 screen however nothing is displayed on my vga screen im using nexys 3 and these were the port used clk v10 ns-n6 vs -p7 red1 -u7 green2 - p8 blue2 -r7 here under is my code which i made thanks i appriate any help library IEEE; use IEEE.std_logic_1164.all; use IEEE.std_logic_arith.all;
My nexys 3 board is not detected by the Diligent Adept 2 software. Is there any way I can test if the board is not working or if it is just not being detected? EDIT: Solved - The jumper was on the wrong pins..
There is only one pin for each color (red, green blue) in a VGA connector. These signals are not digital. Somewhere between the FPGA and the connector the digital signals must be converted to analog by a D/A converter. In the nexys 3 board, this is done by a few resistors for each color. Doing a 2-3 bit D/A-converter this way is easy. An 8-bit D/A-
Hi, I'm experiencing a strange problem with my project. I'm using the nexys 3 board from digilent (spartan 6). I have a lot of components in my project (RAM access, UART communication, SPI communication, etc.). Until yesterday, every part of my code was functionning fine on the nexys 3 devellopment kit. But now, when I'm adding or just changing a
Dear All, I'm doing a project based on nexys-2 FPGA board. A sensor module and FT2232H USB module are connected to Pmod connectors of nexys-2. There are two modules in my FPGA design, one is sensor interface module, other is FT2232 module. Sensor interface samples output of my sensor, and routes it to FT2232 module. FT2232 module captures
hello sirs, I would like to request support from anyone who has much experience and success using Digilent's nexys2-500/1200 FPGAs. 1) The nexys board is said to: "Transfer data to and from the onboard FPGA on your system board. Read from and write to specified registers. Load a stream of data to a register or read a stream of data from a reg
Hi, First post here and completely new to fpga, please be gentle :) I'm trying to teach myself a bit about FPGA's and have read a bunch of books, done a few experiments with a nexys 3 board, even managed to get the T80 (Z80 cpu) core up and running, but have now hit a brick wall. I'm trying to get my T80 project to run code out of the PCM
Hello! What is the safest way to connect a piezo to the nexys 3 PMOD? Trough a transistor? Or could i connect it directly? Thanks.
how to store a .wav file in sdram of nexys 2 board of spartan 3E?
I've been reading the Micron documentation on their MT45W8MW16 70ns PSRAM over and over and over, searching Google for any type of examples, making TONS of notes, and I'm going cross-eyed trying to understand it fully. It should be fairly simple to do s
I am new to FPGAs I need help to display an string on 16x2 alphanumaric LCD on nexys 2 board. I need step by step aproach from begning of the project in Xylinx ISE suit. Thanks in advance. Regards gapoo
I'm trying to learn how to write and read the cellular ram (PSRam) on the nexys 3 board. I've read the nexys 3 Reference Manual, did a TON of Google searching (learned what PSRam was and probably about 7 or 8 other new terms), and finally managed to find some sample Verilog code and tweaked/modified it to get it to work. It does asynchronous writ
Hi guys i've had all my codes done but when i download the program to my board, the four 7-segment shows the same number (lets say i press 3). It wasn't what i intended. i want it to be like when i press a 123 it first shows 1 in the first segment, then 1 in the second segment while 2 in the first segment, and finally 1 in the third segment while 2
Hi guys i noticed my board has Four 12-pin Pmod (peripheral module) connectors. I am trying to interface it with my 4x4 keyboard which has a total of 8 pins (4 inputs, 4 outputs). Can i just directly connect them? edit- ok i realised i need to use just 8 out of the 12pin from the nexys 2 pmod connectors. but i couldn't find any datasheet on
Checkout these excellent tutorials using the Spartan 3E Starter and nexys 2 Boards. The are free and include the project files and PDFs; tutorial 15 covers ADC and DAC. SPARTAN 3E TUTORIALS
I am using nexys 2 Spartan XC3S 1600E board. I have to use Digilent Adept but since Adept 2.3 will not run in my 64-bit windows-7 I tried installing Adept 1.0. But Adept 1.0 does not have Chipscope plugin. As expected the Adept 2.3 is not detecting my board (It shows 'unknown device'). Is there any way to use chipscope plugin with Adept (any
i'm somewhat new to digital design. i'm using ISE WebPack 11.1 and a nexys 2 board (Spartan 3E FPGA) to learn more about digital design and FPGAs in general. the WebPack can generate a test fixture (at least initial version of it) for a given module. below is the initial block it generated for me initial begin // Initialize Inp
i'm relatively new to digital design but i'm very interested in the topic. i did take introduction to digital design class but wanted to learn more, so i purchased a book (introduction to digital design from lbe), nexys 2 fpga and installed all appropriate software. i tried working out the first example (it simply connects leds to the switches on t
Hey, I'm using the Digilent nexys board to make a DSP. I've already designed a function generator so I have code that allows me to use the SPI to write out to a DAC and that is working fine. However, anytime I try to have the SPI drive multiple slaves I lose everything. I have narrowed it down the the SCK. Whenever I use the contraints fi
Hi present i am doing master thesis on Image processing using Image Enhancement technique My task is ( Image enhancement technique implement in vhdl then code send to the nexys 2 board ). Is this board suitable for this application ? am using 64*64 image. if its possible,then how can i take the ou
I am reading through the nexys 2 reference manual and found this paragraph.. I have read through the cellular RAM on the same board and has downloaded simulation model/testbenches from Micron.. Where can I find same model for this ROM also? I browsed through but no avail.. :( The external ROM is a 128Mbit Intel TE28
I recently bought a Digilent nexys 2 board, and after a few days of research got to the point where I can successfully program it over USB from a Linux host without the use of a separate (and expensive!) JTAG interface. Google told me even before I purchased the board that this is a very common requirement; it seems that I'm not the only one inter