gyroscope

Source code: gyroscope.py

A factory test for gyroscopes.

Description

There are steps required to run a complete gyroscope test::

• Motion sensor setup via ectool motionsense odr ${gyro_id} ${freq}

• (optional) Calibration for tri-axis (x, y, and z) gyroscopes.

• The main gyroscope test.

This pytest executes the motion sensor setup and main gyro test in sequence.

Test Procedure

This test supports and enables auto start by default. In this case:

1. Put the device (base/lid) on a static plane then press space.

2. Wait for completion.

Otherwise operators will be asked to place DUT on a horizontal plane and press space.

Dependency

• Device API (cros.factory.device.gyroscope).

Examples

To run a test on base gyroscope:

{
  "pytest_name": "gyroscope",
  "label": "Gyroscope",
  "run_if": "not constants.has_device_data or device.component.has_base_gyroscope",
  "related_components": [
    "test_tags.TestCategory.ACCELEROMETER"
  ],
  "args": {
    "rotation_threshold": 1.0,
    "stop_threshold": 0.1
  }
}

Test Arguments

Name	Type	Description
rotation_threshold	float	The expected value (rad/s) to read when dut start rotating.
stop_threshold	float	The expected value to read when dut stop moving.
gyro_id	int, None	(optional; default: None) Gyroscope ID. Will read a default ID via ectool if not set.
freq	int, None	(optional; default: None) Gyroscope sampling frequency in mHz. Will apply the minimal frequency from ectool info if not set.
timeout_secs	int	(optional; default: 30) Timeout in seconds for gyro to return expected value.
setup_time_secs	int	(optional; default: 2) Seconds to wait before starting the test.
autostart	bool	(optional; default: False) Auto start this test.
setup_sensor	bool	(optional; default: True) Setup gyro sensor via ectool
location	[‘base’, ‘lid’]	(optional; default: 'base') Gyro is located in “base” or “lid”.
capture_count	int	(optional; default: 50) How many records to read for each time getting data
sample_rate	int	(optional; default: 200) Sample rate in Hz to read data from sensors