wrt54g v5 jtag求助

ntjzt

Microsoft Windows XP [版本 5.1.2600]
(C) 版权所有 1985-2001 Microsoft Corp.

C:\Documents and Settings\Administrator>cd c:\jtag

C:\JTAG>jtag  -backup:nvram

=================================================
WRT54G/GS EJTAG Debrick Utility v4.8-DELL2300-V2-MOD
=================================================

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.


C:\JTAG>jtag -backup:nvram  /skipdetect /instrlen:8

=================================================
WRT54G/GS EJTAG Debrick Utility v4.8-DELL2300-V2-MOD
=================================================

Probing bus ... Done

Instruction Length set to 8

CPU Chip ID: 11111111111111111111111111111111 (FFFFFFFF)
*** CHIP DETECTION OVERRIDDEN ***

    - EJTAG IMPCODE ....... : 11111111111111111111111111111111 (FFFFFFFF)
    - EJTAG Version ....... : Unknown (7 is a reserved value)
    - EJTAG DMA Support ... : No

Issuing Processor / Peripheral Reset ... Done
Enabling Memory Writes ... Skipped
Halting Processor ... <Processor Entered Debug Mode!> ... Done
Clearing Watchdog ...

JTAG认不出CPU 认不出版本，用强制的命令在Clearing Watchdog ...  卡住，求助

windguo

1、jtag 线有问题
2、接触不良，重新插拔一下看看
3、重新换一个jtag软件试试

robur

你这是jtag没接好，或者并口驱动没装好的缘故。

robur

你这是jtag没接好，或者并口驱动没装好的缘故。