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  1. Past hour
  2. vicentiu

    device-tree (spartan 6)

    We haven't come across this error before. You can look at the context around the panic in memblock.c. It could be some incompatibility, a misconfiguration of the kernel, device tree or memory ip(s) in EDK design.
  3. Today
  4. Sheryfa

    pmod wifi

    hi again, i found the error but i have no solution.. the problem is in ipserver , i can't read the ip adress IPv4 ipServer = {192,168,1,190}; in the terminal i read: Connecting to network... Connection Created Started Listening 0 Sockets listening on port: 44400 if there is no problem in "ipServer".. where is the problem whene i write in the program "deIPcK.getMyIP(ipServer);" than "xil_printf("Server started on %d.%d.%d.%d:%d\r\n",ipServer.u8[0],ipServer.u8[1],ipServer.u8[2],ipServer.u8[3], portServer);" the terminal can't write it.. thanks
  5. Sami Malik

    How to change the baud rate of Pmod BT2

    Hi Abdul Qayyum, SU,<value> Regards,
  6. Pavani Ganisetti

    Pmod wifi Interface

    Hi@jpeyron Thank you for providing the information .I followed the same as it was mentioned in the thread.But I got errors while generating bitstream.I am completely new to this field and I am unable to crack those errors.I attached the screenshot .The version of vivado I am using is 2016.1.Please let me know where I did the mistake. Thank you Pavani.
  7. denizcan

    Analog Discovery - Device is being used by another appication

    Hi @attila Than what about my device? After 6 computers, 5 self powered hubs, many different cables now the WaveForms even do not detect the device.. Trying the AD2 with new computers became my new hobby.. As I said it worked for a month. Now it does not.. Do you suggest returning it to the rep?
  8. Hi @attila On record mode, it takes one snapshot and stops. What I requested is different.. Think about a frame that is taken at given sample rate, and given trigger position.. Now when I zoom in, software zooms in keeping that settings. If a new frame is captured it starts displaying that new frame.. The device continues the operation as is, but the software lets the user to enlarge the captured frames.. What is currently implemented is not zoom in frame, it recaptures with new settings.. Please, if you come across a PicoScope device, use it for a few hours.. You have a working device (actually mine looks like broken), that way it will be a much better tool..
  9. Hello, I've just started to use the EEBoard and I'm having some troubles with the ground connection of the Scope. The first thing I wanted to do was to use the scope functionality to observe a +-5mV signal on an audio board. While I take the measurement I monitor the output audio signal with a pair of headphones I connect a 1x probe between the GND pin and DC pin of Scope. The moment I connect probe GND to the DUT GND a clicking noise comes out of the headphones. Is the GND pin introducing noise in the audio board, or loading it in some way? As an alternative solution I tried connecting the probe GND to AN1 and the probe signal to AN2. Then In WaveForms I subtract AN1 and AN2 and it all works fine. The connection to the DUT doesn't introduce noise anymore and I'm able to observe the audio signal. Is there a recommended way to Scope an external board? Thanks and Regards, Dario
  10. Abdul Qayyum

    How to change the baud rate of Pmod BT2

    The default baud rate of Pmod Bt2 is 15200. i want to change it to 9600. How can i do that?
  11. Azesinte

    Pmod SDK

    I have fallowed the tutorial of Getting Started with Digilent Pmod IPs, but when I got to section 11 I was stuck. I tried to create a new application project on Vivado SDK using my own hardware platform,but it showed this: The tutorial shows this : I have no processor(microblaze_0), is there anything wrong with my project or did I miss something in tutorial? My Vivado version is 2018.2.
  12. Hi Jcolvin, I have tried the guide your recommended, unfortunately I was still not able to get a response from the AD2. Nothing detected in the device manager. I'd also like to add that I was able to get the AD2 to connect when I first got it and the scope and FG were functional. This failure just recently happened. Thanks, Shawn
  13. Hi Kabron, I just tried installing both Digilent and ESP8266 board support packages and it seems like mine installed just fine. In your post on the VM forums, it sounds like they both work in Arduino, but not in Visual Micro. Is that the case? I do not think it has anything to do with the Digilent core. What happens is Arduino reads the json file from the URL you give it. It then downloads each component as .zip files into %localappdata%/Arduino15/staging/packages/ . These are then unzipped and placed in %localappdata%/Arduino15/packages/Digilent. That is all it does. I'm guessing Visual Micro just calls into Arduino to do this. In your case you say it tries to install the package into Arduino15/packages/Digilent/tools/xc32-tools/xc32-1.43/pic32mx/. I'm not sure why it would do this, but it probably has something to do with your Arduino installation. You might want to try cutting the esp8266 folder from Arduino15/packages/Digilent/tools/xc32-tools/xc32-1.43/pic32mx/ and pasting it into Arduino15/packages/ Otherwise, I would try reinstalling Arduino, or possibly trying another version of Arduino. Hope this helps! Tommy
  14. Yesterday
  15. Missionone

    PCIE to PCIE board connection

    Thanks JColvin, The board is TDA2px which has own power supply and the other board wasn't sold yet by the maker has it's own power supply. The task of second board is a gate for tx and rx data to/from different sources . Thanks
  16. Hi @Shawn83, I responded to your other thread here: Thanks, JColvin
  17. Hi @Shawn83, I have a couple of clarification questions to see if we can figure out the source of the issue. As a side note, when you just power the Analog Discovery 2, there is no lights that turn on until it is connected to WaveForms. What OS are you using? If you are using Windows, do you see it in the Device Manager? It will be reported under Universal Serial Bus controllers as USB Serial Converter. When you say you get no response from the device, do you mean from your computer or from WaveForms? If you haven't already, I would recommend following the steps listed in the initial post of this thread starting with the "Device not detected by WaveForms" portion Let me know how this goes. Thanks, JColvin
  18. jpeyron

    Nexys A7 Reference Manual: SDRAM - Mbps vs MBps

    Hi @tschaboo, The Nexys 4 DDR Resource Center will also be helpful. The resources were originally created for the Nexys 4 DDR board but should be useful to users of the Nexys A7, as the boards are nearly identical. Under the additional resources on the Nexys 4 DDR resource center the SRAM to DDR Component and the Nexys 4 DDR Xilinx MIG Project should be helpful. thank you, Jon
  19. JColvin

    PCIE to PCIE board connection

    Hi @Missionone, I don't know what boards you are using since most of the Digilent boards do not have PCIe I personally do not have any experience with it, but my understanding is that in general if you do not have any voltage conflicts that will occur you can connect them directly with a proper cable. The bigger thing I would be concerned about is the software/hardware (presuming you are using a FPGA) to properly take advantage of communicating over PCIe. Thank you, JColvin
  20. jpeyron

    Pmod wifi Interface

    Hi @Pavani Ganisetti, Here is a forum thread deals with getting the Pmod WIFI working with the Zedboard. This forum thread should help you get your project working. Thank you, Jon
  21. Hello, My analog discovery 2 recently stopped working and I was hoping I could get some assistance troubleshooting the issue or to find out if a warranty replacement might be possible. I've had the device in my possession for under 30 days and recently I have been unable to communicate with the PC and no lights are illuminated on the discovery 2. I've tried a different usb cables and PC's and even a 5vdc power adaptor but I am unable to get a response from the device. Can you help me with this issue? I have access to scopes and DMMs if required. Thanks, Shawn
  22. jpeyron

    pmod wifi

    Hi @harika, There is no special process to copy files to the SD Card. Make sure the SD card is formatted to FAT32. Please use the the SD card slot on the Zedboard. The Digilent board files correctly configures the SD card reader in the ZYNQ processor. thank you, Jon
  23. jpeyron

    How to restore FT2232 EEPROM back to factory settings?

    Hi @mitchekk, I have sent you a pm about this. thank you, Jon
  24. jpeyron

    Nexys A7: UCF file for DDR2 pin assignment

    Hi @tschaboo, Nexys 4 DDR Resource Center - Resources originally created for the Nexys 4 DDR board may be useful to users of the Nexys A7, as the boards are nearly identical. Under the additional resources on the Nexys 4 DDR resource center the SRAM to DDR Component and the Nexys 4 DDR Xilinx MIG Project should be helpful. thank you, Jon
  25. zygot

    Nexys A7 Reference Manual: SDRAM - Mbps vs MBps

    The convention for external memory data rate is on a per pin basis so the reference manual is correct. The peak data rate out of the external memory, as you surmise, depends on the width of the physical memory. If you have a single port (channel) external memory controller then a more important metric is how many bytes/s can you get out of the controller into your FPGA design. If you have a multi port controller vying for access to the memory then the peak data rate out of the external memory becomes significant. There are a lot of moving parts to trying to figure out if an external memory implementation will support any particular application as you likely suspect. There are a lot of factors to consider such as maximum DDR data rates for a particular device, memory burst length, and controller verses data clock ratio. [edit] I should also point out another possible source of confusion. Clearly the 650 Mbps refers to 'million bit per second'. Once you start talking about 'mega bytes per second' you'd be referring to million bytes per second divided by 1.048576. The hard disk drive manufacturers have been pulling our legs for some time by redefining the term megabyte to enhance the perceived capacity of it's products.
  26. I cannot say something about your problem, but i have an idea to solve the speed problem: How about using instead of one 5x clock for the serdes, two times 2,5x clock with a phase shift of 180 degrees? That shoudl solve it?
  27. @Josef, I've gotten burned too often by trying to do math in public and getting it wrong, so forgive me if I don't comment on what is and isn't possible for a given clock rate. The HyperRAM Pmod I cited above can handle one 16-bit transaction every 10ns once you get it going. Not sure if that gets you what you need or not. I will say that DDR controllers can be quite hard, SDRAM is complex but (eventually) quite doable, and SRAM and HyperRAM are both easier. Dan
  28. @D@n Ah, in implementing memory controllers I don't have any experience, so it can be challenge implementing also SRAM controller and I think also DDR controller (I'm afraid of sensitivity both clock edges what I currently can't imagine how I will implement something like this). At SDRAM I only looked for access times. I have last question about generating VGA image. Can HyperRAM on two PMODs works on higher resolution? Space I think have enough (I think 8 MB), able working on 100 MHz, so resolution 1024x768 256 colors will be also possible also on Basys 2 with increase of pixel clock, am I right? Best regards Josef
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