求助 JTAG 清 NVRAM 出现Unknown or NO CPU Chip ID Detected ...现场直播

kidmode

板子是WRT54GV2.2    接好了线路了.
驱动加载了现在,出现下面的提示..........

C:\jtag>wrt54g -erase:nvram

====================================
WRT54G/GS EJTAG Debrick Utility v4.8
====================================

Probing bus ... Done

Instruction Length set to 5

CPU Chip ID: 11111111111111111111111111111111 (FFFFFFFF)
*** Unknown or NO CPU Chip ID Detected ***

*** Possible Causes:
    1) WRT54G/GS is not Connected.
    2) WRT54G/GS is not Powered On.
    3) Improper JTAG Cable.
    4) Unrecognized CPU Chip ID.




线应该没接错吧！ WRT54G V2.2  没用电阻
        2->3
      13->5
        4->7
        3->9
20+25->6

[ 本帖最后由 kidmode 于 2009-4-23 12:59 编辑 ]

yaojian1112

没加载驱动呗

CLS

不看帮助文件的

kidmode

驱动加载了现在,出现下面的提示..........

C:\jtag>wrt54g -erase:nvram

====================================
WRT54G/GS EJTAG Debrick Utility v4.8
====================================

Probing bus ... Done

Instruction Length set to 5

CPU Chip ID: 11111111111111111111111111111111 (FFFFFFFF)
*** Unknown or NO CPU Chip ID Detected ***

*** Possible Causes:
    1) WRT54G/GS is not Connected.
    2) WRT54G/GS is not Powered On.
    3) Improper JTAG Cable.
    4) Unrecognized CPU Chip ID.




线应该没接错吧！ WRT54G V2.2  没用电阻
        2->3
      13->5
        4->7
        3->9
20+25->6

[ 本帖最后由 kidmode 于 2009-4-23 12:56 编辑 ]

KJC

1、BIOS内的LPT设置？
2、JTAG软件的版本。

yy5409

用这个JTAG版本试试:http://www.namipan.com/d/tjtagv3 ... be938b707d3f4d30000