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DCA1000EVM: Decrease ethernet packet delay from 25us to 10us

Allen35065
Expert 3595 points
Part Number: DCA1000EVM

Hi expert,

Customer want to reduce ethernet packet delay on DCA1000 to increase the throughput. They are using studio CLI tool and change the packetDelay_us to 10 in json file.

But we measured the packet delay is still 25us. Is there limit on the packet delay or we need to change other parameter?

Thank you.

Regards,

Allen 

  • 0
    TI__Genius 17687 points

    Hello Allen,

    Could I get a screenshot on how the packet delay is being set within the JSON file?

    Best Regards,

    Pedrhom

  • 0 in reply to Pedrhom Nafisi
    TI__Expert 3595 points

    Hi Pedrhorn,

    Here is the json file.

    {
    "DCA1000Config": {
    "dataLoggingMode": "raw",
    "dataTransferMode": "LVDSCapture",
    "dataCaptureMode": "ethernetStream",
    "lvdsMode": 1,
    "dataFormatMode": 3,
    "packetDelay_us": 10,
    "ethernetConfig": {
    "DCA1000IPAddress": "192.168.33.180",
    "DCA1000ConfigPort": 4096,
    "DCA1000DataPort": 4098
    },
    "ethernetConfigUpdate": {
    "systemIPAddress": "192.168.33.30",
    "DCA1000IPAddress": "192.168.33.180",
    "DCA1000MACAddress": "12.34.56.78.90.12",
    "DCA1000ConfigPort": 4096,
    "DCA1000DataPort": 4098
    },
    "captureConfig": {
    "fileBasePath": "C:\\ti\\",
    "filePrefix": "am273x_",
    "maxRecFileSize_MB": 1024,
    "sequenceNumberEnable": 1,
    "captureStopMode": "infinite",
    "bytesToCapture": 4000,
    "durationToCapture_ms": 4000,
    "framesToCapture": 40
    },
    "dataFormatConfig": {
    "MSBToggle": 0,
    "laneFmtMap": 0,
    "reorderEnable": 0,
    "dataPortConfig": [
    {
    "portIdx": 0,
    "dataType": "real"
    },
    {
    "portIdx": 1,
    "dataType": "real"
    },
    {
    "portIdx": 2,
    "dataType": "real"
    },
    {
    "portIdx": 3,
    "dataType": "real"
    },
    {
    "portIdx": 4,
    "dataType": "real"
    }
    ]
    }
    }
    }

  • 0 in reply to Allen35065
    TI__Genius 17687 points

    Hello,

    Is this behavior seen as well when using mmWaveStudio and one of its default JSON scripts?

    Best Regards,

    Pedrhom

  • 0 in reply to Pedrhom Nafisi
    TI__Expert 3595 points

    Hi Pedrhorm

    No, customer could not use GUI in their test system, it was thought the JSON file should work with mmwave studio GUI. Actually this JSON file attached is from the mmwave SDK and they just modified the packet delay.

    Regards,

    Allen

  • 0 in reply to Allen35065
    TI__Genius 17687 points

    Hello,

    Give me more time to look into this further

    Best Regards,

    Pedrhom