81 lines
1.7 KiB
YAML
81 lines
1.7 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/adc/ti,ads1298.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Texas Instruments' ads1298 medical ADC chips
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description: |
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Datasheet at: https://www.ti.com/product/ADS1298
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Bindings for this chip aren't complete.
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maintainers:
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- Mike Looijmans <mike.looijmans@topic.nl>
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properties:
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compatible:
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enum:
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- ti,ads1298
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reg:
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maxItems: 1
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spi-cpha: true
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reset-gpios:
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maxItems: 1
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avdd-supply:
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description:
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Analog power supply, voltage between AVDD and AVSS. When providing a
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symmetric +/- 2.5V, the regulator should report 5V.
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vref-supply:
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description:
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Optional reference voltage. If omitted, internal reference is used,
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which is 2.4V when analog supply is below 4.4V, 4V otherwise.
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clocks:
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description: Optional 2.048 MHz external source clock on CLK pin
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maxItems: 1
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interrupts:
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description: Interrupt on DRDY pin, triggers on falling edge
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maxItems: 1
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label: true
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required:
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- compatible
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- reg
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- avdd-supply
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- interrupts
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allOf:
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- $ref: /schemas/spi/spi-peripheral-props.yaml#
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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adc@1 {
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reg = <1>;
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compatible = "ti,ads1298";
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label = "ads1298-1-ecg";
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avdd-supply = <®_iso_5v_a>;
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clocks = <&clk_ads1298>;
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interrupt-parent = <&gpio0>;
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interrupts = <78 IRQ_TYPE_EDGE_FALLING>;
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spi-max-frequency = <20000000>;
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spi-cpha;
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};
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};
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...
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