https://w.electrodragon.com/w/index.php?action=history&feed=atom&title=AR9331AR9331 - Revision history2026-06-04T21:35:07ZRevision history for this page on the wikiMediaWiki 1.37.2https://w.electrodragon.com/w/index.php?title=AR9331&diff=28125&oldid=prevChao: /* Schematic */2020-10-05T05:34:39Z<p><span dir="auto"><span class="autocomment">Schematic</span></span></p>
<p><b>New page</b></p><div>== ED9331 ==<br />
* 16MB Flash, 64MB DDR2 RAM<br />
=== Pin Definition ===<br />
[[File:ED9331 Dimension.png|thumb|500px]]<br />
Pin No. Name Description<br />
* 1 VDD33 main power supply DC 3.3V input<br />
* 2 VDD33 main power supply DC 3.3V input<br />
* 3 GND main power supply<br />
* 4 GND main power supply<br />
* 5 GPIO26 standard GPIO<br />
* 6 GPIO12 standard GPIO<br />
* 7 GPIO27 standard GPIO, default is SYSTEM LED function<br />
* 8 GPIO11 internal 10K pull-down resistor to ground, default is WIRELESS LED function, active high<br />
* 9 GPIO17 internal 10K pull-up resistor to 2.6V, default is WAN LED function, active low<br />
* 10 GPIO16 internal 10K pull-down resistor to ground, GPIO function<br />
* 11 GND Ground<br />
* 12 GPIO15 internal 10K pull-down resistor to ground, default is RESET/FACTORY NEW KEY function, active high<br />
* 13 GPIO14 internal 10K pull-down resistor to ground, GPIO function<br />
* 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.<br />
* 15 GPIO1 internal 10K pull-up resistor to 2.6V, GPIO function<br />
* 16 GPIO0 internal 10K pull-down resistor to ground, GPIO function<br />
* 17 GND Ground<br />
* 18 UART_RX serial port RX (usual for debugging)<br />
* 19 UART_TX serial port TX (usual for debugging)<br />
* 20 GPIO20 standard GPIO or I2S SD pin function, defaults to GPIO<br />
* 21 GPIO19 standard GPIO or I2S WS pin function, defaults to GPIO<br />
* 22 GPIO18 standard GPIO or I2S CK pin function, defaults to GPIO<br />
* 23 GPIO21 standard GPIO or I2S MCK pin function, defaults to GPIO<br />
* 24 GPIO22 standard GPIO or I2S MICIN pin function, defaults to GPIO<br />
* 25 GND Ground<br />
* 26 RX4_P Ethernet port 4 Receive positive terminal<br />
* 27 RX4_N Ethernet port 4 Receive negative terminal<br />
* 28 TX4_P Ethernet port 4 Send positive terminal<br />
* 29 TX4_N Ethernet port 4 Send negative terminal<br />
* 30 VDD20 Power over Ethernet Output<br />
* 31 RX0_P Ethernet port 0 Receive positive terminal<br />
* 32 RX0_N Ethernet port 0 Receive negative terminal<br />
* 33 TX0_P Ethernet port 0 Send positive terminal<br />
* 34 TX0_N Ethernet port 0 Send negative terminal<br />
* 35 GND ground<br />
* 36 USB_N USB Negative<br />
* 37 USB_P USB Positive<br />
* 38 GND Ground<br />
<br />
* 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.<br />
== Quick Start Guide ==<br />
* Please use DC Power supply 5V (USB Female better use only for USB Slave device)<br />
* Alternatively can usb USB-UART 3V3 / GND power supply directly<br />
* Connect [[USB-UART]] serial Debugger TXD / RXD<br />
* Core Module Triangle |> should point to USB direction <br />
* Default AP stations WIFI is ZhuoTK_XXX, no password, manage web GUI LUCI at http://192.168.1.251/cgi-bin/luci<br />
Start to flash latest pre-compiled firmware<br />
* Flash method see here [[:Category:Openwrt#Flash]]<br />
* Find pre-compiled firmware here: https://bitbucket.org/e_dragon/openwrt-app/src<br />
More detailed configurations please see openwrt category: https://www.electrodragon.com/w/Category:Openwrt<br />
=== Schematic ===<br />
<gallery><br />
File:JS9331 base board sch v1.41.jpg| Ethernet<br />
File:JS9331_base_board_sch_v1.42.jpg| Utility<br />
File:JS9331_base_board_sch_v1.43.jpg| Power, DCDC<br />
File:JS9331_base_board_sch_v1.44.jpg| USB Hub<br />
File:JS9331_base_board_sch_v1.45.jpg| USB to RS232, USB to TTL<br />
File:Ar9331-sch-1.png | Extension board schematic<br />
</gallery><br />
<br />
=== Relevant Devices ===<br />
{| class="wikitable sortable"<br />
|-<br />
! Device !! Flash !! RAM !! Core !! Reference<br />
|-<br />
| tl-wr720n_v3 || 4MB || 32MB || AR9331 || https://openwrt.org/toh/hwdata/tp-link/tp-link_tl-wr720n_v3<br />
|-<br />
| tl-wr710n_v2.1 || 8MB || 32MB || AR9331 || https://openwrt.org/toh/hwdata/tp-link/tp-link_tl-wr710n_v2.1<br />
|}<br />
<br />
== Software ==<br />
SSH, WinSCP/SCP protocl, <br />
* Default login 192.168.1.251, user password both root<br />
* For more package installation guide please see [[OPKG]]<br />
* For mounting USB device pelase see on this page [[Mount]]<br />
<br />
== Documents ==<br />
* More information please see [[Openwrt]] page.<br />
* Demo cde, precompiled file please find in our download server [[DL]].<br />
<br />
<br />
[[category: Wifi Solutions]]<br />
[[category: Linux HDK]]</div>Chao