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求wrt54g2 v1的JTAG接口定义

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发表于 2009-11-30 21:53 | 显示全部楼层 |阅读模式
本帖最后由 djccy 于 2009-11-30 21:54 编辑

手上有台wrt54g2 v1的机子.想改个4M的Flash,但是JTAG口总是认不到CPU.不解,现在机子是正常的.只改了内存.Flash没动.
借DD网站的图一张.按原文的意思.照图焊好插针后,就直接用其它的wrt54g 的机子的JTAG线.就可以了.我也是样焊接.不行.也乱接了N次.都一样的认不到CPU.
有哪位用搞过这机子的JTAG的.说一下打印口脚数如何对应那个JTAG口.谢谢!
附上原文:
Serial and JTAG on a WRT54G2 V1 unit. (new JTAG style connectors)

The pins can be cleaned of the green epoxy coating...with the 12 pin connector sandwiched on either side of the motherboard...and soldered on. The connector will still fit inside the radio's enclosure.

Also attached (in this picture) is the Serial Connector. 5 pin connector bent at a 30 degree angle so it will still fit inside the case...yet provide access to the +3.3V(pin1), Tx(Pin2), Rx(Pin3) and GND(Pin5) pins....pin4 is not connected to anything.

The JTAG connector is of normal pinout as any other Linksys unit...So is the Serial.

(we are working on JTAG recognition next...This device is currently not supported) - (Now Supported 11/2008)

Hopefully, this will help someone else to connect with the same type of JTAG connection.

redhawk
发表于 2009-11-30 23:47 | 显示全部楼层
这款机“很可爱”,JTAG 可以擦除 Flash ,但不能写入,,,

试了 N 次都是写不进(至少我是这样),祝你好运,,,
 楼主| 发表于 2009-11-30 23:55 | 显示全部楼层
哦?楼上能说一下JTAG的线序么?谢谢!
发表于 2009-11-30 23:57 | 显示全部楼层
两排针脚的那个,上面有数字,和 Linksys 路由器JTAG 通用接法,,,,
 楼主| 发表于 2009-12-1 00:42 | 显示全部楼层
那不好了.说明我这机子的JTAG没用了?晕
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