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OpenEmbed SOM7981

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abgn+ac+ax (AX3000)
Single Board Computer
OpenEmbed SOM7981.jpg
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
BrandModelRev OpenEmbed SOM7981
FCC ID none specified
Type single-board computer, SoM
CPU1 checkY MediaTek MT7981BA
CPU1 Type ARM Cortex-A53 (Filogic 820)
CPU1 Speed 1.3 GHz ( 2 cores ) 64-bit
Flash1 Chip Winbond Model?
Flash1 Size 256 MiB268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br /> (NAND)
Flash2 Size 32 GiB 32,768 MiB <br />34,359,738,368 B <br />268,435,456 Kib <br />33,554,432 KiB <br />262,144 Mib <br /> (eMMC)
RAM1 Size 512 MiB536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br /> (DDR4)
RAM1 Chip Micron D9WHF
ETH chip1 MediaTek MT7981BA
ETH chip2 Realtek RTL8221B
Ethernet Port Count 1-2.5GbE-WAN1-1GbE-LAN
Wired Standard IEEE 802.3i/3u/3ab/3bz

802dot11 OUI: none specified

Stock bootloader U-Boot
Expansion IF types USB 3.0
USB ports 1
USB Hub Compatible Untested
Power ? VDC, ? A
Connector type USB (Type-C) PD
Serial Port (UART) yes, 3.3V TTL, (115200 8N1)
Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Radio 1
Chip1 MediaTek MT7981BA
Chip2 MediaTek MT7976CN
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 2x2:2
Wireless Standard IEEE 802.11b/g/n/ax
802.11ax up to 574 Mbps
802.11n up to 300 Mbps
802.11g up to 54 Mbps
802.11b up to 11 Mbps
WiFi Operating Frequency 2.4 GHz
Radio 2
Chip1 MediaTek MT7981BA
Chip2 MediaTek MT7976CN
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 2x3:2
Wireless Standard IEEE 802.11a/n/ac/ax
AX-QAM up to 2402 Mbps
802.11ax up to 1201 Mbps
802.11ac up to 867 Mbps
802.11n up to 300 Mbps
802.11a up to 54 Mbps
WiFi Operating Frequency 5 GHz

For a list of all currently documented MediaTek chipsets with specifications, see MediaTek.
For a list of all currently documented Realtek chipsets with specifications, see Realtek.

574 Mbps - 2SS 2.4GHz 802.11ax (40MHz chan., 1024QAM),
2402 Mbps - 2SS 5GHz 802.11ax (160MHz chan., 1024QAM) = AX3000 class

Overview

Hardware specification

Add support for OpenEmbed SOM7981 (Git)
  • SoC: MediaTek MT7981BA 2x ARM (Cortex-A53)
  • Flash: 256MiB (SPI NAND), 32GB (eMMC) optional
  • RAM: 512MB/1GB (DDR4) SDRAM
  • Ethernet: 1x 1GbE, 1x 2.5GbE (RTL8221B)
  • Wi-Fi: MediaTek MT7981BA/MT7976CN
  • USB: 1x USB 3.0 port
  • GPIO: 26-pin header
  • UART: 6 (GND), 8 (TX), 10 (RX) (in pin header)
  • Button: Reset, WPS
  • Power: USB (Type-C) PD

Flashing

Flashing OpenWrt

On the OpenWrt ToH (techdata entry)
On the github
OpenWrt Target: mediatek
OpenWrt Subtarget: filogic
OpenWrt Package architecture: aarch64_cortex-a53
Support started version: 24.10.0
Current supported version: 24.10.0
Image too big: -

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