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高手们帮帮忙，谢谢！
我的是MX25L12845EM1 用2.05的brjtag识别为5357
到Erasing block: 2 (addr = 1C010000)... 弹出内存不能为read（试了很多次都这样）
附上操作
Microsoft Windows XP [版本 5.1.2600]
(C) 版权所有 1985-2001 Microsoft Corp.
C:\Documents and Settings\Administrator>cd d:\jtag
C:\Documents and Settings\Administrator>brjtag.exe
===============================================
Broadcom EJTAG Debrick Utility v2.0.5-hugebird
===============================================
ABOUT: This program reads/writes flash memory on the Broadcom MIPS(LE)
Chip and compatible routers via EJTAG using either DMA Access
routines or PrAcc routines (slower/more compatible). Processor chips
supported in this version include the following chips:
Supported Chips
---------------
Broadcom BCM4702
Broadcom BCM4704
Broadcom BCM4712
Broadcom BCM4716
Broadcom BCM4705|4785
Broadcom BCM5350
Broadcom BCM5352
Broadcom BCM5354
Broadcom BCM5356
Broadcom BCM5365
Broadcom HND Mips 74K(008C)
Broadcom BCM6345
Broadcom BCM6338
Broadcom BCM6348
Broadcom BCM6358
Broadcom BCM6368
Broadcom BCM6816
Broadcom BCM7401
PMC-Serria BRECIS MSP2007-CA-A1
TI TNETD7300GDU(AR7WRD)
TI TNETV1060GDW
Supported Cable Types
---------------
ID Cable Name
0 Parallel port type(DLC5/WIGGLER)
1 FT2232C/D based USB cable(OpenMoko,JTAGkey,OpenJTAG)
2 SEGGAR J-Link EMU(v5.0 or later)
3 HID-BRJTAG v1.xx(USBASP M8)
4 HID-BRJTAG v2.xx(STM32F10x/SAM7S)
USAGE: Brjtag /showflashlist
USAGE: Brjtag [parameter] </noreset> </noemw> </nocwd> </nobreak></LE|BE>
</notimestamp> </dma> </nodma> </noerase></initcpu>
</nompi> </ejslow></waitbrk></srst><wx8></resetcs>
</bypass></forcealign></showppb></clearppb></erasechip>
</nocfi></forcenoflip></forceflip></spirevert>
<window:XXXXXXXX><start:XXXXXXXX> </length:XXXXXXXX>
<port:XXX> </instrlen:XX> </fc:XX></skipdetect>
</wiggler></cable:X></io2></safemode>
</verbose></pause>
Required Parameter
------------------
-backup:[cfe|tfe|cfe128|nvram|wholeflash|custom|kernel|bsp]
-erase:[cfe|tfe|cfe128|nvram|wholeflash|custom|kernel|bsp]
-flash:[cfe|tfe|cfe128|nvram|wholeflash|custom|kernel|bsp]
-probeonly
Optional Switches
-----------------
/noreset ........... prevent Issuing EJTAG CPU reset
/noemw ............. prevent Enabling Memory Writes
/nocwd ............. prevent Clearing CPU Watchdog Timer
/nobreak ........... prevent Issuing Debug Mode JTAGBRK
/noerase ........... prevent Forced Erase before Flashing
/notimestamp ....... prevent Timestamping of Backups
/dma ............... force use of DMA routines
/srst .............. force a TAP nSRST reset on starting
/nodma ............. force use of PRACC routines (No DMA)
/ejslow............. with low speed ejtag access
/waitbrk............ wait until CPU enter debug mode
/wx8 ............... with x8 mode program flash
/resetcs ........... issue spi controller reset before any op
/spirev............. reverse data endian on flashing a spi chip
/initcpu............ load CPU configuration code
/nompi.............. skip autodect flash base address with MPI Reg
/LE ................ force operate as Little Endian chip
/BE ................ force operate as Big Endian chip
/window:XXXXXXXX ... custom flash window base&probe address(in HEX)
/start:XXXXXXXX .... custom start location (in HEX)
/length:XXXXXXXX ... custom length (in HEX)
/verbose............ scrolling display of data
/pause.............. pause while CPU is initialized
/skipdetect ........ skip auto detection of CPU Chip ID
/instrlen:XX ....... set CPU instruction length manually
/wiggler ........... use wiggler cable
/nocfi ............. disable CFI query flash geometry
/forcenoflip ....... force not flipping CFI queried flash geometry
/forceflip ......... force flipping CFI queried flash geometry
/bypass ............ unlock Spansion bypass mode & disable polling
/forcealign......... force erase address align with block boundary
/erasechip.......... erase whole chip, only work with -probeonly
/clearppb........... erase Spansion PPB,only work with -probeonly
/showppb ........... show flash sector protection status
only work with -probeonly
/port:XXX........... customize parallel port(default XXX is 378)
only work in Windows version
/io2 ............... use alternative Parallel port access method
/cable:x ........... select cable type, x = cable type ID
/safemode .......... use parallel cable way operate USB, SLOW!
/fc:XXX = Manual Flash Chip Selection,disable CFI and ID auto match
use 'brjtag /showflashlist' show build-in flash list
NOTES: *) '-backup:', '-flash:' and '-erase:', the source filename must exist
as follows: CFE.BIN, NVRAM.BIN, KERNEL.BIN, WHOLEFLASH.BIN or
CUSTOM.BIN, BSP.BIN, TFE.BIN(64KB or 1x bottom Sector length CFE)
CFE128.BIN(128KB CFE)
*) Brjtag defualt with x16 mode handle Parallel Flash chip. /wx8 switch
to x8 mode.
*) Brjtag uses CFI command set to automatically detect flash chip
parameters. If you have difficulty auto-detecting flash with CFI,
'/nocfi' convert to original flash detection method. brjtag then use
detected flash ID query parameters from build-in flash list.
particularly, you can use '/fc:XX' manually specify flash ID.
'brjtag /showflashlist' can print build-in flash list
*) '/forcenoflip' and '/forceflip' can help on some AMD type flash
detecting sector structure correctly if CFI uses.
'brjtag -probeonly /verbose' debug flash detection
*) If you have difficulty with the older bcm47xx chips or when no CFE
is currently active/operational you may want to try both the
/noreset and /nobreak command line options together. Some bcm47xx
chips *may* always require both these options to function properly.
*) When using this utility, usually it is best to type the command line
out, then power up the router, about 0.5 second delay, hit <ENTER>
quickly to avoid bad CFE code lead to <CPU NOT enter Debug mode>
or the CPUs watchdog interfering with the EJTAG operations.
*) /bypass - enables Unlock bypass command for some AMD/Spansion type
flashes, it also disables polling
*) /initcpu allow load config code to initialize the CPU. This may help
BCM6358 prevent from some address non-accessible.
*) '-probeonly /window:xxxxxxxx /erasechip' allow choose a workable
sector address to erase whole chip. This may help on a bricked box
with bad CFE
*) /forcealign - enable erase sectors if the operation window is not
aligned with sector boundary. It's risky! but can help erase some
box NVRAM area whose sector size is larger than NVRAM definition
*) /ejslow - limit parallel port clock out speed to 500KHz. This wish
to increase LPT port compatibility for some high clock PC.
For USB cable this switch can help hit higher clock
*) /pause - pause while CPU being initialized.
help handle <CPU NOT enter Debug Mode> via shorting pin method
***************************************************************************
* Flashing the KERNEL or WHOLEFLASH will take a very long time using JTAG *
* via this utility. You are better off flashing the CFE & NVRAM files *
* & then using the normal TFTP method to flash the KERNEL via ethernet. *
***************************************************************************
C:\Documents and Settings\Administrator>brjtag.exe -probeonly
===============================================
Broadcom EJTAG Debrick Utility v2.0.5-hugebird
===============================================
Probing bus ... Done
Detected IR Length is 5
CPU Chip ID: 00010101001101010111000101111111 (1535717F)
CPU Manufature:Broadcom(17E)
CPU Device ID :5357
CPU Revision :1
*** Detected a CPU but not in build-in list ***
*** You can set /skipdetect let operate continue ***
C:\Documents and Settings\Administrator>brjtag -erase:wholeflash
===============================================
Broadcom EJTAG Debrick Utility v2.0.5-hugebird
===============================================
Probing bus ... Done
Detected IR Length is 5
CPU assumed running under LITTLE endian
CPU Chip ID: 00010000000010001100000101111111 (1008C17F)
*** Found a Broadcom manufactured HND Mips 74K(008C) REV 01 CPU ***
- EJTAG IMPCODE ....... : 01100000010000010100000000000000 (60414000)
- EJTAG Version ....... : 3.1
- EJTAG DMA Support ... : No
- EJTAG Implementation flags: R4k ASID_8 MIPS16 NoDMA MIPS32
Issuing Processor / Peripheral Reset ... Done
Enabling Memory Writes ... Skipped
Halting Processor ... <Processor Entered Debug Mode!> ... Done
Clearing Watchdog ... Done
Loading CPU Configuration Code ... Skipped
Probing Flash at Address: 0x1FC00000 ...
Detected pFlash Chip ID (VenID:DevID = 00FF : FFFF)
Detected sFlash Chip ID (VenID:DevID = 00C2 : 0017)
*** Found a (16MB) ST SPI compatible Flash Chip from Macronix
- Flash Chip Window Start .... : 1C000000
- Flash Chip Window Length ... : 01000000
- Selected Area Start ........ : 1C000000
- Selected Area Length ....... : 01000000
*** You Selected to Erase the WHOLEFLASH.BIN ***
=========================
Erasing Routine Started
=========================
Total Blocks to Erase: 256
Erasing block: 1 (addr = 1C000000)...Done
Erasing block: 2 (addr = 1C010000)...
C:\Documents and Settings\Administrator>
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发表于 2013-4-6 22:45:19