Genio 700-EVK

Overview

Genio 700-EVK board is an evaluation kit of MediaTek. For detailed hardware specifications, please refer to Genio 700-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.

Power-Supply

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.

Table 1. Low Power Data of G700-EVK

Current (mA)

Power (mW)

Suspend

49.15

196.6

Idle (cluster-off state)

155.42

621.68
Table 2. Low Power Data of MT8390 (SOC only)

Current (mA)

Power (mW)

Suspend

5.73

22.92

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

    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

    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.

Table 3. Low Power Data of G700-EVK Components

Current (mA)

Power (mW)

Wi-Fi & BT Module MT7921

1.4

5.6

Display panel

0.5

2

Ethernet

9.3

37.2

USB Hub

19.4

77.6

Raspberry Pi

4.5

18

SCP

1.5

6

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

    &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

    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

    &scp {
        status = "disabled";
};