Leo_W

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  1. Leo_W

    NetFPGA-SUME

    Hi digilent, My SUME board has been missing some devices that prevented me from powering on, and I've asked questions about them before. Finally replacing the device with the LTC2974, I found that digilent appeared to have been pre-configured in the LTC2974.How can I burn the firmware into the power system manager so that my board can be successfully powered on. Thanks.
  2. Hi digilent, I have some questions about G2. Could you please help me answer them? 1. Whether the VADJ power domain on the development board can be switched to 3.3V through JP6 (the schematic diagram calculation does not reach 3.3V); 2. Whether the clock pin is specified, or whether the high-speed clock is specified; 3. The MGTAVTT1V2 in the power field is not connected to the socket. Can we use a peripheral 1.2V to refer to whether the timing requirements of the relevant pin are met? 4. Whether GBTCLK_M2C(0-1) and other clock pins can be used as conventional GPIO port
  3. Leo_W

    NetFPGA-SUME

    Hi digilent, I failed to start my SUME properly and found that some resistors and capacitors were missing, but the model number and resistance value were not marked on the schematic diagram, which bothered me.I don't know if they're soldered on the back, the back is blocked by the radiator. Thanks!
  4. Leo_W

    Nexys4 DDR

    Hi @Bianca The pin on the IC5 chip was supposed to be 3.3v, but I got only 1v.The board can be powered on normally, but the display is an unknown device.So I think there is a problem with IC5, but I don't have the relevant schematic diagram or chip model.
  5. Leo_W

    Nexys4 DDR

    Hi digilent, I have a question on the Nexys 4 DDR board. In schematic, where does FT3V3 come from? It seems FT3V3 doesn't go anywhere. Is there any schematic or information about FT3V3? Thanks!
  6. Leo_W

    Nexys4 DDR

    Hi digilent, My computer could not recognize N4. After detection, it found abnormal voltage of IC5 pin, but there was no schematic diagram of this part. I would like to try to repair myself, hoping to have this part of the schematic and chip signal. Thanks!
  7. Hi @JColvin, This board can run any other program, but this demo alone will fail. Therefore, it gives me a headache, because I think there is no problem with the hardware and software. Thank you for your help. Thanks!
  8. Hi JColvin, I don't think the bitstream is a problem, I can run it successfully on another piece of N4. Besides, other Bitstreams running on this piece of N4 can be used normally. It just can't run this demo, so I am very confused. Thanks!
  9. Sorry,I mean the GPIO routine on the official website. https://reference.digilentinc.com/learn/programmable-logic/tutorials/nexys-4-ddr-gpio-demo/start
  10. Hi,digilent! I'm having some problems with my N4.When I ran the IO self-check program(Nexys-4-DDR-OOB) on the official website, it worked without exception.But when I ran the GPIO program on my website, neither the digital tube nor the LED lit up. The code runs successfully on other N4 boards, and this board runs normally on other programs that use digital tubes and leds. I don't know what's wrong, can you help me? Thanks!
  11. Leo_W

    JTAG-SMT2-NC

    Hi @JColvin We still can`t find out the reason, we used Nexys 4 DDR to download the bitfile, Vivado could find SMT2-NC, it couldn`t find Artix-7, but the Adept still could find Artix-7 100T. Hope yours suggestion.
  12. Leo_W

    JTAG-SMT2-NC

    Hi JColvin, This board is a custom board, and we turned off Adept when using Xilinx tools. We have re-installed the Digilent cable drivers for several times with several versions, but it still happened. PS: When we used the Digilent Board after re-installed, it worked good on Vivado and Adept.
  13. Leo_W

    JTAG-SMT2-NC

    Hi Digilent, I used DIGILENT JTAG-SMT2-NC on my board , Now I have a strange problem!!! When I use “Digilent Adept”, I can use this module to program , As you can see, everything is right! !But! When I use VIVADO2018.3 , there are problems as shown in the figure below,The jtagsmt2 shown in the picture is because the firmware was flashed with DigilentFTDIConfig, but the situation of not flashing and flashing the firmware is the same Has anyone ever had a similar problem? Please help. Thank you!
  14. Leo_W

    JTAG-SMT2-NC

    Hi Digilent, I used DIGILENT JTAG-SMT2-NC on my board , Now I have a strange problem!!! When I use “Digilent Adept”, I can use this module to program , As you can see, everything is right! !But! When I use VIVADO2018.3 , there are problems as shown in the figure below,The jtagsmt2 shown in the picture is because the firmware was flashed with DigilentFTDIConfig, but the situation of not flashing and flashing the firmware is the same Has anyone ever had a similar problem? Please help. Thank you!
  15. Hi digilent, My jtag smt2 is damaged, I want to know the model of this resistor so I can repair it myself.I can't find Its resistance and model in the schematic,could you help me? Thanks