DC Coupled LVPECL
Hello, I am trying to feed an LVPECL output from an Si5338 into an LVPECL clock input of an Arria V. The Vicm and Vid of both chips are compatible. Can I just DC-couple the output of the Si5338 and the...
View ArticleTimer interrupt mode in qsys
Hi all, when i am trying to configure IOWR_ALTERA_AVALON_TIMER_CONTROL register IOWR_ALTERA_AVALON_TIMER_CONTROL(TIMER_0_BASE,0X7) ; then control register is not getting written.. what to do...kindly...
View ArticleStratix IV TR4 and fast ADC (3.6 GSPS)
Hello to everyone, I am new to this forum and to the world of FPGA boards. I have been looking around for a long time, in order to choose the right develpment board for my appliccation, and now I am...
View ArticleLVDS_TX no output
Hi, I have a problem with the mega function LVDS_TX. Nothing is coming out of it! I check with SignalTap the "in" signal and they are good. It's for a DAC3282. I have 32 bit input, 8 channels output ,...
View ArticleNeed MEX Files for linux OS.
I have 64-bit Windows MEX files for the following modules from ALTERA fftmodel. ncomodel. I need 64-bit LINUX MEX files for the same. T&R Suresh.A
View ArticleHow can i use the tse ip core with qsys?
hi, I am a new to qsys and nios and I am able to use the tse ip core to communicate with pc using TCP/IP.But i don't know how to do implement my design target.So, could anyone give me some tips about...
View ArticleProgramming Altera Apex EP20K1000EBC652-1 (N ABA720201A)
Hi, I have a board and I have a FPGA as in the subject. I have a programmer (Mini Altera FPGA CPLD USB Blaster programmer JTAG). But I do not have a clue how to program my FPGA. Anyone know what SW I...
View ArticleSD Card Pin Assignments for SD Card DE2-115
Hello, where can I change the Pin Assignments in Qsys? In the document "SD_Card_Interface_for_SoPC_Builder.pdf" I can see which Pin I have to change but I don't know where in Qsys. Here? Component...
View ArticleSD Card address range for SD Card DE2-115
Hello, where should I change the address range in Qsys? In the document "SD_Card_Interface_for_SoPC_Builder.pdf" they write I should change it to 1024 bytes. Is this way right? Component Library->...
View ArticleDE-0 Nano Flash Programming Problem
Hi, I'm new with De-0 Nano board and I have a problem. I created an easy vhdl project, loaded it through the '.sof' file and it functions well. However I converted the .sof into '.jic' file (following...
View ArticleQsys, Megawizard: HPC II DDR Memory Controller has different address width, WHY?
Hi everyone, for a DDR Memory device with bank addr 2 bits, row addr 13 bits and col addr 9 bits I generated a Half Rate HPC II DDR Memory Controller using 2 methods: Megawiz and Qsys. Megawiz:...
View ArticleQuestion about Nios II economic version
I'm working with a development board DE-270 alters the processor you have is a Neo II economic (cyclone II family EP2C70F896C6). My question is what type of operating system I can try to install in...
View ArticleMixed verilog and block schematic simulation ? Missing Libraries?
I'm so very frustrated with Quartus, I don't know where to begin other than to say the integration between Quartus and ModelSim absolutely sucks. Quartus seems to be able to launch ModelSim, but falls...
View ArticleQuartus v13.0 on linux ubuntu 12.04 lts (32 Bit) license check fails -...
Hi, i installed Quartus v13.0 on ubuntu linux version 12.04 LTS. Everything works nice but whenever I start quartus I see the checkbox window where I can select the three license option (Buy...
View ArticleQuartus v12.x v13.0 on Ubuntu 12.04 linux - usb port settings for jtagd usb...
Hi, I followed the instructions on the altera website to set the usb port settings in linux in the rules.d directory in order to run the usb blaster. That did not work and the access rights are not...
View ArticleAbout signal and variable
I just start using VHDL for one month, I am a little confused by signal and variable. I read the textbook, I know the difference between them like: Variable is a local one can be used inside process...
View ArticleCYCLONE III DEV Board Not working
I bought CYCLONE IIII DEV Board recently, and followed the manual carefully, but just could not get the basic examples and DEMO to work. Following are my problems: 1) after connect to Ethernet network,...
View ArticleProblems printing spi data in console
Hi everybody I'm working in a project and i'm developing an SPI Analizer Protocol. I create two modules spi, one as a master and the other as a slave and I'm using these code statements because I want...
View ArticleHow to specify simulation file and family while generating megafunctions...
Hi, I'm wondering if there's a way to specify simulation file used and device family while generating megafunctions through command line? Thanks in advance!
View ArticleNios II exception handler
Hi, I'm using Nios II and experiencing some strange behaviors. 1. Sometimes the system gets stuck. 2. The system resets. 3. In debug mode - the software get stuck after going to a trap. The Hardware is...
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