TechInfoDepot:JTAG/JTAG Pinouts

Airlink AR430W


The router follows the MIPS 2.6 EJTAG Specification and has the same PIN information. But on the board the PINS are layed out as

1  2   3   4  5  6  7 14 13 12 11 10 9 8

1 - nTRST 3 - TDI 5 - TDO 7 - TMS 9 - TCK 2, 4, 6, 8, 10 - GND [you only need one GND for JTAG] You dont need the following pins 11 - nSRST 14 - VCC 12, 13 - N/C

Airlink AP431W
Same as DWL-2100/2200 - See below

Belkin F5D7230 v1000
To flash use latest wrt54g v4.8, with these parameters: /fc:29 /nocwd /nobreak /noreset watch out for RA11 (under the minipci)

Buffalo WBR-G54
jtag is pins 1-12 (normal jtag pinout: 3: TDI, 5: TDO, 7: TMS, 9: TCK)
 * |mini-pci card
 * |_______________
 * 2       12  JP1
 * o o o o o o |o o|
 * o o o o o o |o o|
 * 1       11  JP2

Buffalo WLA-G54
siehe Buffalo WBR-G54

DLink DWL2100/2200
(Also Airlink AP321W)

Pin 1 to pin 14

Pin 3 TDI

Pin 5 TDO

Pin 7 TMS

Pin 9 TCK

Pin 6 Grd

Standard v2.6 EJTAG connector:



Fonera 2200A
The board:

Standard v2.6 EJTAG connector:

Parallel port - TJTAG 3.0.2 - /cable:wiggler
To get the Universal JTAG board, read this forum thread

Philips SNB6500 (v1)
Board before MOD: Preparation: 1st step Preparation: 1st step First group of pads: Wires connected: Wires flow: Hidden connections: Second group of pads: Wires connected: Final look:

Siemens SE505 v1
see Belkin F5D7230 v1000

Siemens SE505 v2


You will find round Labels on the flash chip with 01, 02, 03

Nice German HowTo: JTAG for SE505 v2

I updated the jtagspi with a 8Meg winbond flash and added information if you have to fix the code to match your JTAG hardware jtagspi.tgz with my modifications

Related Links

 * http://www.dd-wrt.com/phpBB2/viewtopic.php?t=12053


 * JTAG pinouts at JTAG Test.com