allegro,a4979

Description

Allegro A4979 microstepping stepper motor driver.
A4979 is a flexible microstepping motor driver with built-in translator for easy operation.
It is designed to operate bipolar stepper motors in full-, half-, quarter-, and sixteenth-step
modes.

Example:
a4979: a4979 {
    status = "okay";
    compatible = "allegro,a4979";
    micro-step-res = <2>;
    reset-gpios = <&gpiod 10 GPIO_ACTIVE_HIGH>;
    en-gpios = <&gpiod 11 GPIO_ACTIVE_HIGH>;
    m0-gpios = <&gpiod 13 0>;
    m1-gpios = <&gpiod 12 0>;
};

Properties

Node specific properties

Properties not inherited from the base binding file.

Name	Type	Details
`step-width-ns`	`int`	Minimum pulse width in nanoseconds for the step signal. Default value: `1000`
`m0-gpios`	`phandle-array`	Microstep configuration pin 0. This property is required.
`m1-gpios`	`phandle-array`	Microstep configuration pin 1. This property is required.
`reset-gpios`	`phandle-array`	Reset pin This property is required.
`micro-step-res`	`int`	micro-step resolution to be set while initializing the device driver. Default value: `1` Legal values: `1`, `2`, `4`, `8`, `16`, `32`, `64`, `128`, `256`
`en-gpios`	`phandle-array`	GPIO pins used to control the enable signal of the motor driver.

Deprecated node specific properties

Deprecated properties not inherited from the base binding file.

(None)

Base properties

Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “allegro,a4979” compatible.

(None)