92 lines
2.3 KiB
YAML
92 lines
2.3 KiB
YAML
# Copyright (c) 2022 Thomas Stranger
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# SPDX-License-Identifier: Apache-2.0
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# Common Properties for the DS2477 and DS2485 I2C 1-Wire masters:
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include: [w1-master.yaml, i2c-device.yaml]
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properties:
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switching-threshold:
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type: string
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required: true
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enum:
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- "low"
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- "medium"
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- "high"
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- "off"
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description: |
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Default Low-to-High Switching Threshold.
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Only the following values are allowed:
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low: 0.25 x VCC, no hysteresis
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medium: 0.40 x VCC, no hysteresis (recommended for most configurations)
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high: 0.75 x VCC, with hysteresis
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off: off (chip reset value)
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active-pull-threshold:
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type: string
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required: true
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enum:
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- "low"
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- "medium"
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- "high"
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- "off"
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description: |
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Default Active Pullup on Threshold configuration.
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For configurations with a single slave a "low" active pull
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threshold is recommended.
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Only the following values are allowed:
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low: 0.25 x VCC (recommended for most configurations)
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medium: 0.40 x VCC
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high: 0.75 x VCC
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off: off (chip reset value)
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weak-pullup:
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type: string
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required: true
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enum:
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- "extern"
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- "500"
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- "1000"
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- "333"
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description: |
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Default 1-Wire Weak Pullup Resistance in ohms.
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For most configurations with a single slave "1000" ohms are recommended,
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but some devices and multidrop configurations might need a stronger pullup.
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To enter floating condition, it is suggested to switch the weak-pull up
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to extern and disable the switching as well as the active-pull threshold.
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Only the following values are allowed:
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"extern" (chip reset value)
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"500"
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"1000" (recommended for most configurations)
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"333"
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standard-slew:
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type: int
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default: 150
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enum:
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- 50
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- 150
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- 1300
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description: |
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Default slew for standard speed mode in ns. Only the following values are
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allowed:
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50
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150 (default; chip reset value)
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1300
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overdrive-slew:
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type: int
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default: 50
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enum:
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- 50
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- 150
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description: |
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Default slew for overdrive speed mode in ns. Only the following values are
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allowed:
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50 (default; chip reset value)
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150
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