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『求助』JTAG碰到这样的提示是什么问题?

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发表于 2010-8-25 12:14 | 显示全部楼层 |阅读模式
C:\>brjtag -erase:wholeflash

===============================================
Broadcom EJTAG Debrick Utility v1.8c-hugebird
===============================================

Probing bus ... Done

Instruction Length set to 5

CPU assumed running under BIG endian

CPU Chip ID: 00000110001101011000000101111111 (0635817F)
*** Found a Broadcom manufactured BCM6358 REV 01 CPU ***

    - EJTAG IMPCODE ....... : 00000000100000011000100100000100 (00818904)
    - EJTAG Version ....... : 1 or 2.0
    - EJTAG DMA Support ... : Yes
    - EJTAG Implementation flags: R4k MIPS16 MIPS32

Issuing Processor / Peripheral Reset ... Done
Enabling Memory Writes ... Skipped
Halting Processor ... <rocessor did NOT enter Debug Mode!> ... Done
Clearing Watchdog ... Done
Loading CPU Configuration Code ... Skipped
Detecting Flash Base Address...
Read MPI register value : 48454c4f
MPI register show Flash Access Base Addr : 08454c00

Probing Flash at Address: 0x08454C00 ...
DMA Read(h) Addr = 08454c00  Data = (00000000)ERROR ON READ
DMA Read(h) Addr = 08454c02  Data = (00000000)ERROR ON READ
Detected Chip ID (VenIDevID = 00FF : FFFF)
DMA Read(h) Addr = 08454c20  Data = (00000000)ERROR ON READ
DMA Read(h) Addr = 08454c22  Data = (00000000)ERROR ON READ
DMA Read(h) Addr = 08454c24  Data = (00000000)ERROR ON READ
DMA Read(h) Addr = 08454c20  Data = (00000000)ERROR ON READ
DMA Read(h) Addr = 08454c22  Data = (00000000)ERROR ON READ
DMA Read(h) Addr = 08454c24  Data = (00000000)ERROR ON READ
DMA Read(h) Addr = 08454c20  Data = (00000000)ERROR ON READ
DMA Read(h) Addr = 08454c22  Data = (00000000)ERROR ON READ
DMA Read(h) Addr = 08454c24  Data = (00000000)ERROR ON READ
DMA Read(h) Addr = 08454c20  Data = (00000000)ERROR ON READ
DMA Read(h) Addr = 08454c22  Data = (00000000)ERROR ON READ
DMA Read(h) Addr = 08454c24  Data = (00000000)ERROR ON READ
*** Unknown or NO Flash Chip Detected ***


*** REQUESTED OPERATION IS COMPLETE ***
我的恩山、我的无线 The best wifi forum is right here.
发表于 2010-8-25 13:34 | 显示全部楼层
OE接地吧,具体的操作请百度
我的恩山、我的无线 The best wifi forum is right here.
发表于 2010-8-26 11:21 | 显示全部楼层
JTAG线没有接好。
我的恩山、我的无线 The best wifi forum is right here.
发表于 2010-8-26 11:58 | 显示全部楼层
jtag肯定接好了,不然cpu都不会认出来。认不出来的是rom,建议加参数,或者说rom没焊接好,或者损坏。
我的恩山、我的无线 The best wifi forum is right here.
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