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hsyn's avatar
hsyn
Icon for New Contributor rankNew Contributor
5 years ago

De10-Nano GHRD UNSTABLE

Hello,

I created a new design with DE10_NANO_SoC_GHRD sample project. There are 2 new ip-cores which are made by me (bw_flash_loader and bw_flash_loader_pin_router) in new design.

The bw_flash_loader have 2 protocols that name are spi and jtag for use to program an ic.

The bw_flash_loader_pin_router is routing signals between ip-cores and gpios.

The bw_flash_loader_subsystem have 2 DMA(for data transfer between hps and fpga ocram), fpga_ocram and bw_flash_loader.

Problem:
When I add 1 or 2 bw_flash_loader_subsystem to design, it works well. But, if I add one more, it is not working stable. When I compile design all time, it works differently. I didn't change any settings or files. I can't understand why works differently all time.
For example;
ipcore-1 works well and ipcore-2 don't work well. I compile design again. ipcore-2 works well and ipcore-1 don't work well.

Lots of DMA are connected to a f2h_axi_slave bus.(multiple_master.png) Is it a problem?


Details:
Optimization mode: Balanced (Default)
clk: 50mhz
Reports folder: All reports are in this folder.
qsf file: DE10_NANO_SoC_GHRD.qsf
sdc file: DE10_NANO_SOC_GHRD.sdc

4 Replies

  • EBERLAZARE_I_Intel's avatar
    EBERLAZARE_I_Intel
    Icon for Regular Contributor rankRegular Contributor
    5 years ago

    Hi,

    The causes may vary, since you have changes in the GHRD which is connected to the HPS, you need to recompile all the design.

    E.g recompile in the Platform designer and Quartus, then recompile the device tree, preloader and Uboot.

    • hsyn's avatar
      hsyn
      Icon for New Contributor rankNew Contributor
      5 years ago

      Hi,

      I recompiled all design again but nothing changed. It worked unstable.

      I didn't add any constraint for spi and jtag pins.

      Which subject should I focuse to? Platform Designer(connections and parameters) , timing constraints , Assignment Editor Parameters (current strength, slew rate, etc.) , own ip cores or verilog codes , noise and reflections , etc.

      • hsyn's avatar
        hsyn
        Icon for New Contributor rankNew Contributor
        5 years ago

        if there is a problem about timing constraints, in this case, it does not work stable with high spi frequencies, does it? But, it didn't work well(not stable) with low spi frequencies also.