TechInfoDepot:JTAG/TIAO/zJTAG
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http://www.tiaowiki.com/download//category.php?id=8
E:\zjtag>zJTAG
==============================================
TUMPA EJTAG Debrick Utility V0.3
==============================================
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 BCM5365
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 DIYGADGET.COM TIAO USB Multi-Protocol Adapter (TUMPA)
1 DIYGADGET.COM All In One/20/10 PIN JTAG cable
2 DIYGADGET.COM Blackcat JTAG cable (for cable modems)
USAGE: zjtag /showflashlist
USAGE: zjtag [parameter] </noreset> </noemw> </nocwd> </nobreak></LE|BE>
</notimestamp> </dma> </nodma> </noerase></initcpu>
</nompi> </ejslow></waitbrk></srst><wx8>
</bypass></forcealign></showppb></clearppb></erasechip>
</nocfi></forcenoflip></forceflip></delay:xxx>
<window:XXXXXXXX><start:XXXXXXXX> </length:XXXXXXXX>
<port:XXX> </instrlen:XX> </fc:XX></skipdetect>
</diygadgetfta></diygadgetblackcat></cable:X></io2></safemode>
</verbose>
Required Parameter
------------------
-backup:cfe
-backup:tfe
-backup:nvram
-backup:kernel
-backup:wholeflash
-backup:custom
-backup:bsp
-erase:cfe
-erase:tfe
-erase:nvram
-erase:kernel
-erase:wholeflash
-erase:custom
-erase:bsp
-flash:cfe
-flash:tfe
-flash:nvram
-flash:kernel
-flash:wholeflash
-flash:custom
-flash: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
/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
/skipdetect ........ skip auto detection of CPU Chip ID
/instrlen:XX ....... set CPU instruction length manually
/diygadgetfta ...... use DIYGADGET.COM All In One / 10 / 20 PIN FTA cable
/diygadgetblackcat . use DIYGADGET.COM Blackcat cable modem JTAG 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
/delay:XXX.......... Delay XXX ms in DMA write mode (only for TUMPA)
/io2 ............... use alternative Parallel port access method
/cable:x ........... select cable type, x = cable type ID
x = 0 (default): DIYGADGET.COM TUMPA USB JTAG Adapter
x = 1 : DIYGADGET.COM All In One/20 PIN/10 PIN Parallel
JTAG cable or Wiggler type JTAG cable
x = 2 : DIYGADGET Buffered Blackcat JTAG cable (for
cable modems)
/safemode .......... use parallel cable way operate USB, SLOW!
/fc:XXX = Manual Flash Chip Selection,disable CFI and ID auto match
use 'zjtag /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(64 {{abbr|kb|kilobytes}} or 1x bottom Sector length CFE)
*) zjtag defualt with x16 mode handle Parallel Flash chip. /wx8 switch
to x8 mode.
*) zjtag 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. zjtag then use
detected flash ID query parameters from build-in flash list.
particularly, you can use '/fc:XX' manually specify flash ID.
'zjtag /showflashlist' can print build-in flash list
*) '/forcenoflip' and '/forceflip' can help on some AMD type flash
detecting sector structure correctly if CFI uses.
'zjtag -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
*) /delay - Pause between DMA write actions. Use this if you could not
get a reliable write or erase result. If not specified, default delay
is 50 ms. This option only works with TUMPA USB adapter.
***************************************************************************
* 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. *
***************************************************************************
E:\zjtag>
