Router Boxes being Analyzed
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Analyzing Router Platforms

My goal here was inspired by seeing the many sites implementing public source/firmwares for assorted routers (besides other devices). I had wanted to add my own ideas and modifications into my own router, such as for I/O Devices, and possibly use it for a developement platform. After studying some of these, I found it a major task (needing to compile the whole router system firmware under Linux -varying about 100MB).

My goal is to develop a simple Assembler and C-Compiler for these Platforms. So that developers can compile patches to quickly embed into their own Platforms using Serial-Port or JTAG.



WRT54G-CDF1



Chips found :

* Cpu : BCM4702KPB - Cpu MIPS32
* Ram : ic42s16400-6T - (2) SDRAM 1Mx4bankx16bit
* Flash : am29Lv320db - Flash (2Mx16)
* Ether : adm6996

* JTAG pads
* UART1 + UART2 pads -without support chips



WRT54GC



Chips found :

* Cpu : Marvel 88W8510-BAN ARM9
* Ram : EM636165TS-6 SDRAM 1Mx16
* LV29800BTTC-7 FLASH 1Mx8/524Kx16
* Ether : 88e6060 SWITCH

* Pads : dip2x8 Unknown



EZXS55W



Chips found :

* Cpu : Olive LES105
* Ram : SGRAM mg802c-256q-8 - ?
* Flash : ?
* Ether : NetPhy am79c875kc

* Pads : JP7 ? (like BEFSR41 expansion)



BEFSR41



Chips found :

* Cpu : Olive LES105
* Ram : ?
* Flash : ?
* Ether : RTL8019as + ?

* Pads : JP4 ?



RT31P2



Chips found :

* Cpu : Marvel 88w8510-ban
* Ram : ic41c16100s-50k 1Mx16 DRAM
* Flash : 29Lv160bttc-90 (1Mx16) + 39vf080 (1Mx8/2Mx8)
* Ether : rtL8019as + Marvel 88e6063-rcj - 7-Port Fast Ethernet Switch
* Other : ESS Visba3 es3890f - VCD Processor

* Pads : J5 JTAG ?



PSUS4



Chips found :
* Cpu : Infineon ADM5120P 175MHz/227Mips
* Ram : Em636165ts 1Mx16 SDRAM
* Flash : 29lv800 512Kx16



RP614v2



Chips found :
* Cpu : Kendin ks8695 - ARM 922T MIPS
* Ram : is42s16400A-7t SDRAM 1Mx4bankx16bit
* Flash 29Lv800btc-90 524Kx16

* JTAG pads : 'ICE'
* Serial : 'UART0'



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Links to Related Sites :

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Notes
Note: All of the notes here are taken from unfinished Analysis, and may include Inaccuracies or Errors or missing info. No resposibility or guarantee are assumed from Info on this page nor from the author.

Help would be appreciated
Looking for Binaries such as Bootloader for analysis. Also looking for specs for CPUs in these these Routers, including OpCodes for the Assembler. The RTL8651B Assembly Opcodes would be especially useful. The Assemblers and C-Compilers are hoped to be posted here in the future.

Any Questions:



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