nordic,nrf-qdec

Vendor: Nordic Semiconductor

Description

Nordic nRF quadrature decoder (QDEC) node

Properties

Node specific properties

Properties not inherited from the base binding file.

Name

Type

Details

a-pin

int

 
The A pin to use.

For pins P0.0 through P0.31, use the pin number. For example,
to use P0.16 for the A pin, set:

    a-pin = <16>;

For pins P1.0 through P1.31, add 32 to the pin number. For
example, to use P1.2 for the A pin, set:

    a-pin = <34>;  /* 32 + 2 */

This property is required.

b-pin

int

 
The B pin to use. The pin numbering scheme is the same as
the a-pin property's.

This property is required.

led-pin

int

 
The LED pin to use for a light based QDEC device. The pin
numbering scheme is the same as the a-pin property's.

enable-pin

int

 
The enable pin to use, to enable a connected QDEC device. The
pin numbering scheme is the same as the a-pin property's.

led-pre

int

 
Time LED is enabled prior to sampling event (in us)

This property is required.

steps

int

 
Number of steps on the rotating wheel

This property is required.

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 “nordic,nrf-qdec” compatible.

Name

Type

Details

reg

array

 
register space

This property is required.

See Important properties for more information.

interrupts

array

 
interrupts for device

This property is required.

See Important properties for more information.

label

string

 
Human readable string describing the device (used as device_get_binding() argument)

This property is required.

See Important properties for more information.

status

string

 
indicates the operational status of a device

Legal values: 'ok', 'okay', 'disabled', 'reserved', 'fail', 'fail-sss'

See Important properties for more information.

compatible

string-array

 
compatible strings

This property is required.

See Important properties for more information.

reg-names

string-array

 
name of each register space

interrupts-extended

compound

 
extended interrupt specifier for device

interrupt-names

string-array

 
name of each interrupt

interrupt-parent

phandle

 
phandle to interrupt controller node

clocks

phandle-array

 
Clock gate information

clock-names

string-array

 
name of each clock

#address-cells

int

 
number of address cells in reg property

#size-cells

int

 
number of size cells in reg property

dmas

phandle-array

 
DMA channels specifiers

dma-names

string-array

 
Provided names of DMA channel specifiers

io-channels

phandle-array

 
IO channels specifiers

io-channel-names

string-array

 
Provided names of IO channel specifiers

wakeup-source

boolean

 
Property to identify that a device can be used as wake up source.

When this property is provided a specific flag is set into the
device that tells the system that the device is capable of
wake up the system.

Wake up capable devices are disabled (interruptions will not wake up
the system) by default but they can be enabled at runtime if necessary.