.. include:: /keyword.rst

==========
|G700-EVK|
==========

.. contents:: Sections
	:local:
	:depth: 4

Overview
========
|G700-EVK| board is an evaluation kit of MediaTek. For detailed hardware specifications, please refer to :doc:`Genio 700-EVK </hw/g700-evk>`. We will use the G700-EVK with multiple modules as a platform to measure the power consumption in suspend and idle mode. The provided low power data may vary due to hardware differences and has a tolerance of 10% error. These data are for reference only.

Measurement settings
====================

- Software Version : v23.2

- Operating Voltage : 4 V

- The LEDs on board need to be removed before measurement.

- Connect power supply to EVK and start measurement.

.. _700power-supply:

.. figure:: /_asset/low-power_700EVK.png
    :alt: Power-Supply
    :align: center
    :width: 65%

    Power-Supply


Power Consumption of G700-EVK
=============================

The following is the power consumption data of Suspend and Idle, and we will provide the measurement SOP.

.. csv-table:: Table 1. Low Power Data of G700-EVK
	:class: longtable
	:file: /_asset/tables/lowpower-g700-23_2.csv
	:width: 65%
	:widths: 40 40 40 

.. csv-table:: Table 2. Low Power Data of MT8390 (SOC only)
	:class: longtable
	:file: /_asset/tables/lowpower-mt8390-23_1.csv
	:width: 65%
	:widths: 40 40 40 


Suspend
****************

* Step 1 : Power on DUT

* Step 2 : Wait for the system to initialize, about 1-2 minutes

* Step 3 : Requires the system to enter suspend mode

	.. code-block::

		echo mem > /sys/power/state

* Step 4 : The console cannot input commands, which means it enters suspend

* Step 5 : Wait for 1 minute and start measuring


Idle
****************

* Step 1 : Power on DUT

* Step 2 : Wait for the system to initialize, about 1-2 minutes

* Step 3 : turn off some extra services
	
	.. code-block::

		cd /etc/netopeer2 ; sh netopeer2-server stop
		systemctl stop NetworkManager.service
		echo off > /sys/class/drm/card0-DSI-1/status

* Step 4 : Wait for 1 minute and start measuring


Power Consumption of Components
===============================

Genio 700-EVK contains a number of additional components, the following is the power consumption of each module under suspend mode. 

.. csv-table:: Table 3. Low Power Data of G700-EVK Components
	:class: longtable
	:file: /_asset/tables/lowpower-g700-components-23_1.csv
	:width: 65%
	:widths: 40 40 40 

Disable Component
*****************

* MT7921 : 

	If you do not need to use WIFI and Bluetooth, you can remove the MT7921 module to reduce power consumption

* Display panel : 

	If you do not need a screen display, you can remove the screen cable to reduce power consumption

* Ethernet : 

	If you do not need to use ethernet, you can set status = "disabled" to eth node in genio-700-evk.dts to reduce power consumption

	.. code-block::

		&eth {
			status = "disabled";
		}

* USB Hub : 

	If you do not need this module, you can remove the hardware in your platform

* Raspberry Pi : 
	
	If you do not need Raspberry Pi and Audio DTB, you can remove regulator-always-on of VDD_3V3 in genio-700-evk.dts to reduce power consumption

	.. code-block::
		
		VDD_3V3: VDD-3V3 {
			compatible = "regulator-fixed";
			regulator-name = "VDD-3V3";
			regulator-min-microvolt = <3300000>;
			regulator-max-microvolt = <3300000>;
			gpio = <&pio 9 GPIO_ACTIVE_HIGH>;
			enable-active-high;
		};

* SCP : 

	If you do not need this module, you can set status = "disabled" to scp node in genio-700-evk.dts to reduce power consumption

	.. code-block::

		&scp {
			status = "disabled";
		};