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Recent content by zzzhhh

  1. Z

    How to use the System Clock on Digilent Arty A7-100T in a way as easy as System Reset?

    There are two board components on the Digilent Arty A7-100T FPGA development board: System Reset and System Clock, as shown in the board file board.xml: and Board tab in Vivado: The System Reset is so easy to use: it automatically shows up in the Block Design diagram and get configured. I...
  2. Z

    [SOLVED] How to change revision of my IP core?

    For some reason, I don't like the number of revision automatically incremented when I make modification to my IP core. But I can't find anywhere in Vivado where I can change it. Can you tell me how to change IP revision? PS: I'm using Vivado 2023.1 on Windows 10.
  3. Z

    [SOLVED] Why "The Memory Controller has one address channel?"

    This is a sentence in section "Arbitration in AXI Shim" of Xilinx's "Zynq-7000 SoC and 7 Series FPGAs MIS v4.2 100 (UG586)" document (page 101): "The Memory Controller has one address channel." But I double checked the MIG core I inserted into the block design of Vivado, the slave AXI...
  4. Z

    [SOLVED] What command can save out existing flash and then save it back on Xilinx Alveo U280

    On a Ubuntu machine with Xilinx Alveo U280 card and Vitis 2022.2 software package installed, what command can save out existing flash to a file and then save it back without error? Thanks.
  5. Z

    What does "observed" mean here in the AXI standard?

    I'm reading section A6.4 "Slave ordering" of AXI standard, but I don't quite understand what the word "observed" mean in the standard text: Can you give me an explanation, preferably with a concrete example? Thanks.
  6. Z

    [SOLVED] Vitis vadd example crashes on Alveo U280 card at line 30 of host.cpp

    I'm trying to follow vadd example in Vitis Getting Started Tutorial on hardware (link). The OS is Ubuntu 22.04.2 and Xilinx Vitis software (XRT, deployment and development platform) version 2022.2 is downloaded from the official product webpage (link). To the best of my knowledge, I think my...
  7. Z

    Remote simulation of an FPGA development board

    It seems to me now that I have to connect the FPGA development board to the computer on which the development software, say, Xilinx Vivado 2022.2, is running. Is there any chance that I connect the development board to one PC, while the development software is running on another PC so that the...
  8. Z

    How to read/write file in host when running Verilog code in a development board?

    We know that Verilog has file I/O system task functuons. But in practical FPGA development on a development board connected to host PC with a micro-USB cable, say, a Xilinx Artix-7 board, how to read/write file in host PC when simulating Verilog code on the board using Vivado 2022.2? Thanks.
  9. Z

    What is hardware concurrency platforms for FPGA?

    We know concurrency platform is usually implemented by software. But is there any hardware concurrency platform for FPGA in which we can spawn a new thread, synchronize and use parallel loops without worrying about implementation details? Thanks.

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