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1-Wire

Developed by Dallas Semiconductor, the 1-Wire protocol defines signal types such as Reset Pulse, Presence Pulse, Write 1, Write 0, Read 1, and Read 0, and combines them into command sequences. Transmission is LSB (Least-significant bit) to MSB (Most-significant bit); speeds include Overdrive and Standard.

Timing Setting units are µs; wrong values mis-detect Reset / Presence / Write. See Settings for channel prefixes.

Decode Settings

Decode Settings

1-Wire Decode Settings
  • Channel: Set the data channel source.
  • ChipSet: Select the chipset to decode. Default: Raw Data.
  • Bit Order: LSB first or MSB first. Default: LSB first.
  • Data Byte Column Amount: Bytes per Data row in the Report (8 / 16 / 32). Field enabled (Enable) only when ChipSet is Raw Data. Default: 8.
  • Timing Setting: All units are µs.
    • Slot Time:
      • Min: Minimum slot duration. Default: 60 µs.
      • Max: Maximum slot duration. Default: 120 µs.
    • Slot Interval:
      • Min: Minimum interval between slots. Default: 1 µs.
      • Max: Maximum interval between slots. Default: 5 µs.
    • Reset Time:
      • Min: Minimum Low time of the Reset pulse. Default: 480 µs.
      • Max: Maximum Low time of the Reset pulse. Default: 640 µs.
    • Presence Time:
      • Min: Minimum Low time of the Presence pulse. Default: 60 µs.
      • Max: Maximum Low time of the Presence pulse. Default: 240 µs.
    • Write One:
      • Min: Minimum Low time when writing 1. Default: 1 µs.
      • Max: Maximum Low time when writing 1. Default: 15 µs.
    • Write Zero:
      • Min: Minimum Low time when writing 0. Default: 60 µs.
      • Max: Maximum Low time when writing 0. Default: 120 µs.

Result

1-Wire Result

1-Wire decode result
  • Reset pulse: Reset pulse.
  • Presence pulse: Presence pulse, followed by data.