Differences

This shows you the differences between two versions of the page.

toh:tp-link:tl-wr703n:ar9331_pinout [2013/01/25 20:53]
sudden add link to insane usb mod
toh:tp-link:tl-wr703n:ar9331_pinout [2014/06/17 23:42] (current)
valentt
Line 1: Line 1:
====== Pinout of AR9331-AL1A in TP-Link TL-WR703N/TL-MR-3020 ====== ====== Pinout of AR9331-AL1A in TP-Link TL-WR703N/TL-MR-3020 ======
 +
 +**UPDATE**: Here is a link to the full datasheet: [[http://www.scribd.com/doc/132231193/AR9331-datasheet]] , from which the detailed pinout:
 +
 +{{:media:ar9331.png|}}
Here is the currently known pinout of the Atheros AR9331-AL1A chip, as used in the TP-Link TL-WR703N and TL-MR3020 pocket routers: Here is the currently known pinout of the Atheros AR9331-AL1A chip, as used in the TP-Link TL-WR703N and TL-MR3020 pocket routers:
{{:toh:tp-link:ar9331.pinout.bg.png|}} {{:toh:tp-link:ar9331.pinout.bg.png|}}
 +
===== How was this pinout obtained? ==== ===== How was this pinout obtained? ====
Line 13: Line 18:
  * In the [[toh:tp-link:tl-mr3020#internal.pictures|TL-MR3020]], as it is a slightly improved device compared to the TL-WR703, featuring more LEDs/switches and a "diversity" antenna   * In the [[toh:tp-link:tl-mr3020#internal.pictures|TL-MR3020]], as it is a slightly improved device compared to the TL-WR703, featuring more LEDs/switches and a "diversity" antenna
  * In the [[toh:tp-link:tl-wr741nd#photos|TL-WR741ND]], as it is a full-fledge 5 port Wifi router/switch   * In the [[toh:tp-link:tl-wr741nd#photos|TL-WR741ND]], as it is a full-fledge 5 port Wifi router/switch
 +  * In the [[toh:tp-link:tl-mr3040#photos|TL-MR3040]], a portable router with battery although a little different from these but all it´s information is in the page
In this regard, the picture of a TL-WR703N PCB taken by forum user "[[https://forum.openwrt.org/profile.php?id=97516|NutBolt]]" with the AR9331 chip removed was invaluable: In this regard, the picture of a TL-WR703N PCB taken by forum user "[[https://forum.openwrt.org/profile.php?id=97516|NutBolt]]" with the AR9331 chip removed was invaluable:
Line 95: Line 101:
We are left with the possible GPIO pins! We are left with the possible GPIO pins!
 +
 +**Worry free GPIO pins(tm):**
 +If you have some DIY project use GPIO pins 18, 19, 20, 21, 22 and 23 without any worries, these pins are not used during booting. Other GPIO pins are not suitable for use if you don't know exactly what you are doing because they are used during boot process (bootstrap).
Based on experiments and knowledge acquired in [[https://forum.openwrt.org/viewtopic.php?id=36471&p=1|the corresponding OpenWRT Forum thread]] (thanks to everyone there :-)), using the kernel interface to GPIOs and a digital multi-meter, it has been possible to locate most of the GPIO pins. Based on experiments and knowledge acquired in [[https://forum.openwrt.org/viewtopic.php?id=36471&p=1|the corresponding OpenWRT Forum thread]] (thanks to everyone there :-)), using the kernel interface to GPIOs and a digital multi-meter, it has been possible to locate most of the GPIO pins.
Line 111: Line 120:
===== Tags ===== ===== Tags =====
---- ----
-{{tag>PinOut SDRAM Ethernet USB WLAN GPIOs FastEthernet 1Port Serial integrated 802.11bgn 1Radio AR9331 ath9k 1Ant 32RAM 4Flash MIPS MIPS32 24k AP121}}+{{tag>PinOut SDRAM Ethernet USB WLAN GPIOs FastEthernet 1NIC 1WNIC no_switch Serial integrated 802.11bgn AR9331 ath9k 1Ant 32RAM 4Flash MIPS MIPS32 24k AP121}}

Back to top

toh/tp-link/tl-wr703n/ar9331_pinout.1359143621.txt.bz2 · Last modified: 2013/01/25 20:53 by sudden