AR9331

From ElectroDragon Wiki

ED9331

  • 16MB Flash, 64MB DDR2 RAM

Pin Definition

ED9331 Dimension.png

Pin No. Name Description

  • 1 VDD33 main power supply DC 3.3V input
  • 2 VDD33 main power supply DC 3.3V input
  • 3 GND main power supply
  • 4 GND main power supply
  • 5 GPIO26 standard GPIO
  • 6 GPIO12 standard GPIO
  • 7 GPIO27 standard GPIO, default is SYSTEM LED function
  • 8 GPIO11 internal 10K pull-down resistor to ground, default is WIRELESS LED function, active high
  • 9 GPIO17 internal 10K pull-up resistor to 2.6V, default is WAN LED function, active low
  • 10 GPIO16 internal 10K pull-down resistor to ground, GPIO function
  • 11 GND Ground
  • 12 GPIO15 internal 10K pull-down resistor to ground, default is RESET/FACTORY NEW KEY function, active high
  • 13 GPIO14 internal 10K pull-down resistor to ground, GPIO function
  • 14 GPIO13 is internally connected to a 10K pull-up resistor to 2.6V. The default is the LAN1 LED function, which is active high.
  • 15 GPIO1 internal 10K pull-up resistor to 2.6V, GPIO function
  • 16 GPIO0 internal 10K pull-down resistor to ground, GPIO function
  • 17 GND Ground
  • 18 UART_RX serial port RX (usual for debugging)
  • 19 UART_TX serial port TX (usual for debugging)
  • 20 GPIO20 standard GPIO or I2S SD pin function, defaults to GPIO
  • 21 GPIO19 standard GPIO or I2S WS pin function, defaults to GPIO
  • 22 GPIO18 standard GPIO or I2S CK pin function, defaults to GPIO
  • 23 GPIO21 standard GPIO or I2S MCK pin function, defaults to GPIO
  • 24 GPIO22 standard GPIO or I2S MICIN pin function, defaults to GPIO
  • 25 GND Ground
  • 26 RX4_P Ethernet port 4 Receive positive terminal
  • 27 RX4_N Ethernet port 4 Receive negative terminal
  • 28 TX4_P Ethernet port 4 Send positive terminal
  • 29 TX4_N Ethernet port 4 Send negative terminal
  • 30 VDD20 Power over Ethernet Output
  • 31 RX0_P Ethernet port 0 Receive positive terminal
  • 32 RX0_N Ethernet port 0 Receive negative terminal
  • 33 TX0_P Ethernet port 0 Send positive terminal
  • 34 TX0_N Ethernet port 0 Send negative terminal
  • 35 GND ground
  • 36 USB_N USB Negative
  • 37 USB_P USB Positive
  • 38 GND Ground
  • Note: For Ethernet port 4, the system is configured as the WAN port by default. Ethernet port 0, the system is configured as the LAN port by default.

Quick Start Guide

  • Please use DC Power supply 5V (USB Female better use only for USB Slave device)
  • Alternatively can usb USB-UART 3V3 / GND power supply directly
  • Connect USB-UART serial Debugger TXD / RXD
  • Core Module Triangle |> should point to USB direction
  • Default AP stations WIFI is ZhuoTK_XXX, no password, manage web GUI LUCI at http://192.168.1.251/cgi-bin/luci

Start to flash latest pre-compiled firmware

More detailed configurations please see openwrt category: https://www.electrodragon.com/w/Category:Openwrt

Schematic

Relevant Devices

Device Flash RAM Core Reference
tl-wr720n_v3 4MB 32MB AR9331 https://openwrt.org/toh/hwdata/tp-link/tp-link_tl-wr720n_v3
tl-wr710n_v2.1 8MB 32MB AR9331 https://openwrt.org/toh/hwdata/tp-link/tp-link_tl-wr710n_v2.1

Software

SSH, WinSCP/SCP protocl,

  • Default login 192.168.1.251, user password both root
  • For more package installation guide please see OPKG
  • For mounting USB device pelase see on this page Mount

Documents

  • More information please see Openwrt page.
  • Demo cde, precompiled file please find in our download server DL.