zephyr,gpio-stepper

Vendor: Zephyr-specific binding

Note

An implementation of a driver matching this compatible is available in drivers/stepper/gpio_stepper_controller.c.

Description

GPIO Stepper Controller for darlington transistor arrays or dual H-bridge

Example:
  /* Lead A is connected Lead C and Lead B is connected to Lead D*/
  stepper: stepper {
      compatible = "zephyr,gpio-stepper";
      gpios = <&gpioa 9 GPIO_ACTIVE_HIGH>,  /* Lead A1/A */
              <&gpioc 7 GPIO_ACTIVE_HIGH>,  /* Lead B1/B */
              <&gpiob 0 GPIO_ACTIVE_HIGH>,  /* Lead A2/C */
              <&gpioa 7 GPIO_ACTIVE_HIGH>;  /* Lead B2/D */
  };

Properties

Node specific propertiesDeprecated node specific propertiesBase properties

Properties not inherited from the base binding file.

Name	Type	Details
gpios	phandle-array	The gpio pin array on which the stepper inputs are to be connected This property is required.
invert-direction	boolean	Invert motor direction.
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.
step-gpios	phandle-array	The GPIO pins used to send step signals to the stepper motor.
dir-gpios	phandle-array	The GPIO pins used to send direction signals to the stepper motor. Pin will be driven high for forward direction and low for reverse direction.
counter	phandle	Counter used for generating step-accurate pulse signals.