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toh:buffalo:whr-g300nv2 [2013/11/01 03:34]
toh:buffalo:whr-g300nv2 [2013/11/08 14:44] (current)
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 +====== Buffalo WHR-G300N V2 ======
  
 +^ Version ^ SoC                     ^ Flash ^ RAM  ^ Network ^ Antennas ​  ^ Wireless ​  ^ USB ^ Serial ^ Jtag                           ^
 +| 2       | AR7240 @400Mhz | 4MB   | 32MB | 1+4 x100| 2 internal | 2.4Ghz bgn | no  | yes    | yes (untested, needs pullups) ​ |
 +
 +
 +The model name is Buffalo WHR-G300N V2 with the same hardware configuration as WHR-G301 and WHR-HP-G300N. Users can just burn the WHR-G301N version firmware as the HW is the same.
 +
 +===== Links =====
 +
 +  * [[http://​wikidevi.com/​wiki/​Buffalo_WHR-G300N_v2|Buffalo WHR-G300N_v2 on wikidev]]
 +  * [[http://​infodepot.wikia.com/​wiki/​Buffalo_WHR-G300N_v2.0|Buffalo WHR-G300N_v2 on infodepot]]
 +  * [[http://​www.dd-wrt.com/​wiki/​index.php/​WHR-G300N_V2|dd-wrt WHR-G300N v2]]
 +  * Source code avaliable [[http://​buffalo.jp/​php/​los.php?​to=gpl/​wireless/​gpl_whr-series_182.tar.bz2|here]]
 +
 +
 +===== Serial =====
 +
 +WHR-G300N V2 has the TTL serial out on J6(unpopulated 4 pin connector), located near serial flash. ​
 +Pin 1 is the pin with the square pad, towards the edge of the board with front LEDs.
 +^ Pin 1 ^ Pin 2 ^ Pin 3 ^ Pin 4 ^
 +|  3.3V | GND    | TX    | RX    |
 +
 +
 +===== RAM =====
 +WHR-G300N V2 comes with 32M RAM which is DDR 16bit. The native U-boot can recognize 64M RAM and pass the info to kernel. Unfortunately,​ the kernel rejected the 64M info and force itself running with 32M RAM. After flashing with OpenWRT, 64M RAM can be fully utilized. ​  
 +
 +===== USB =====
 +WHR-G300N V2 has no USB support. Since AR7240 has USB 1.1 pins, simply HW mod can add USB support to it. 
 +
 +==== Flash ====
 +WHR-G300N V2 has 4M flash which is too small for DIY. After the research, I found it can support 8M and 16M flash with modified TP-Link 841N V5 Bootloader. ​