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Everything posted by Bianca

  1. Bianca

    Nexys4 DDR

    Hi @Leo_W, So, I will try to explain to you something from that schematic.... I see that you opened a lot of topics, some of them answered by my colleagues. I suggest you keep all the questions related to a board, or to the same problem in the same topic, otherwise, we can't follow up with you. You asked about IC20... That is an LDO that makes the FT3V3 from the USB 5V0... all the FTDI environment is powered by that FT3V3. Like I said previously in a topic, the FTDI has an internal LDO that makes generates the voltage for the core. Initially I thought the FTDI was powered from
  2. Bianca

    Nexys4 DDR

    Hi @Leo_W In this picture your board is turned off. Does it power when you switch it on? Does the power led go on? What do you mean by weird voltage on the VCC pin of IC? What did you measure there? If the board does power on, can you tell me what shows up in device manager? If anything at all, even if unknown device, give me the Hardware ID.. Regards, Bianca
  3. Bianca

    Nexys4 DDR

    Hi @Leo_W, That's an internal voltage generated by the FTDI... There's a missing page in the schematic that includes the programming solution which is a proprietary design. Best regards, Bianca
  4. @BALA, Well, you seem to have a short circuit to the 3V3 rail. I don't know if all the others are functioning well. If you can find the short circuit and remove the component that's causing it and replace it with another one, your board should work again, if the other rails are fine. Check the schematic for the 3V3 rail and try to look at the board. Maybe there is a component (capacitor/resistor) visible burned and you can remove it. Bianca
  5. Hi @BALA, Can you please give me more details with the work you were doing when the board shut down? Were you using external devices on the IOs? I need details like, was the board powered just with usb or through AUX? Were you touching the board at that point? You said you checked the PS voltage drop to 24V... This is confusing... You meant 2.4V? Where did you measure? Is the board not functioning just with USB or also with AUX? If you tried just using the USB, is it possible to power it through AUX as well and see of it works? Can you please measure some voltages on t
  6. Hi Marcus, Sorry for the delayed answer. You have a private message regarding your request. Regards, Bianca
  7. @mgonzalezg, You have a private message. Regards, Bianca
  8. Hi @wloogundam, Here you have the step file for Pmod MTD Regards, Bianca PmodMTD.stp
  9. Bianca

    DMM Shield

    Hi @Zoran, Those transistors have the collector shorted to the base and they function as a diode. The circuit there is basically a clamping circuit to limit the over and under voltage. Regards, Bianca
  10. Thanks, I thought you might've got a REV E. That would be a little more problematic when following the tutorials. With REV D you're good to go... Bianca :)
  11. @tt12345678 Can you tell me also how recently you bought your ZedBoard and which revision you have? Thanks, Bianca
  12. Hi Takashi, I am not very sure what you are asking. If you are referring to the XADC Pmod, I can tell you that this is wired to the auxiliary analog input pins of the FPGA. The pins can be configured as analog input, or digital input/output. The XADC is a dual channel 12-bit ADC converter and can go up to 1MSPS. The VCC pin of the Pmod is able to provide 3.3V . The FPGA Bank (Bank 15) where the analog pins are connected is also powered at 3.3V. If you want more information about the XADC and how you can use it, you can check the Xilinx UG480
  13. Bianca

    Zedboard REV E

    @Ayexor Please write an email at [email protected] with the number of REV E you currently own and their serial number and I'll pick it from there. Thanks, Bianca
  14. Bianca

    Zedboard REV E

    Hi @yunus, We received an email on support regarding your issue from the distributor. We'll move the discussion there. Also, please check your private messages. Thanks, Bianca
  15. @FrozenW, Zybo Z7 can be powered through USB only, without a wall supply or a battery. Please look at the jumper position to be set between VU5V0 and USB like on the picture below. Check the markings on the board for the proper way to power the Zybo. You shouldn't have to use your Discovery to power the Zybo. Regards, Bianca
  16. Hi @venkat kulkarni Can see anything in device manager? Does it enumerate in any way when you connect the board? Bianca
  17. I couldn't really say if it's harder or easier but for the Pcam we already provide an IP, example projects and even a workshop documentation. You can see info regarding the camera, lens, projects and what we offer for it on the Pcam 5C resource center page: The IP and demo project are public on our github: Bianca
  18. Hello, Well, the FPGA is the same, so what you want to look at, are the other features like the memory, Audio, Digital I/O. Maybe you also want to use some buttons or switches at some point, and you want them on the board and not as expansion. Between PYNQ Z1 and Arty Z7, the only difference is that the PYNQ has a microphone and Arty Z7 doesn't, otherwise they are identical from the specs point of view. With this in mind, I will talk about the comparison between the Arty Z7 and Zybo Z7... They both have HDMI In and Out, but if you also want Audio codec you can find that on
  19. Hi @mati, You have a private message. Regards, Bianca
  20. Hi @Shalom, In case you want to match the output you'll use the 50Ohm jumper position in order to have adaptation. In this case your amplitude will be divided by 2. In the case you want to use the Gavegen just as a voltage source and don't want to reduce the amplitude, you can leave it to 0V. Regards, Bianca
  21. Hi Leo, That resistance seems to be R18, which is a 100k pull-up resistor for tckc signal... it's in 0201 capsule. Regards, Bianca
  22. Hi Sean, You have the DXF of the ZedBoard attached. Regards, Bianca ZED.DXF
  23. Hi Claudio, The same product will have different codes: 410-XXX, 210-XXX for different stages in the manufacturing process. For example on the PCB you'll see 200-338 that is assigned just for the PCB without the assembly. 210-338 was the assembled device, prototype that went for certification. 410 is the code for the assembled product + package, visible on the website. Since at the time we did the CE test the product was a prototype of the final revision, we used the internal 210-338. Regardless of the initial code, the product is identified with the numbers after the "-".
  24. Hi @[email protected] You have the declaration attached. Regards, Bianca Digital Discovery_CE.pdf
  25. Hi @satvik, Can you please tell me which ZedBoard revision are you using? You can find it labeled on the top side of the board right under the serial number. Thanks, Bianca