显示这个是不是Flash坏了

gogogo106 · 发表于 2009-4-11 23:20

机器型号: WRT54G V3.1
CPU型号:  Broadcom BCM5325EKQM
Flash型号: Intel 28F320C3BD70
问题: 一直都找不到flash, 接TTL线也没显示.

jtag线接法:
PC并口                JTAG插头
2          100欧姆    5
3          100          7
4          100          9
13       100             3
20/25    直连          6

D:\wrt54g\windows>wrt54g -flash:cfe

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

Probing bus ... Done

Instruction Length set to 8

CPU Chip ID: 00100100011100010010000101111111 (2471217F)
*** Found a Broadcom BCM4712 Rev 2 CPU chip ***

- EJTAG IMPCODE ....... : 00000000100000000000100100000100 (00800904)
- EJTAG Version ....... : 1 or 2.0
- EJTAG DMA Support ... : Yes

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

Probing Flash at (Flash Window: 0x1fc00000) ... Done

*** Unknown or NO Flash Chip Detected ***

*** REQUESTED OPERATION IS COMPLETE ***

提示找不到flash

[ 本帖最后由 gogogo106 于 2009-4-11 23:24 编辑 ]

gogogo106 · 发表于 2009-4-11 23:21

支持的有

         Supported Chips
         ---------------
         Broadcom BCM4702 Rev 1 CPU
         Broadcom BCM4712 Rev 1 CPU
         Broadcom BCM4712 Rev 2 CPU
         Broadcom BCM5350 Rev 1 CPU
         Broadcom BCM5352 Rev 1 CPU
         Broadcom BCM5365 Rev 1 CPU
         Broadcom BCM6348 Rev 1 CPU
         Broadcom BCM6345 Rev 1 CPU
         TI AR7WRD TNETD7300GDU Rev 1 CPU
         Broadcom BCM4704 Rev 8 CPU
         BRECIS MSP2007-CA-A1 CPU

USAGE: wrt54g [parameter] </noreset> </noemw> </nocwd> </nobreak> </noerase>
                  </notimestamp> </dma> </nodma>
                  <start:XXXXXXXX> </length:XXXXXXXX>
                  </silent> </skipdetect> </instrlen:XX> </fc:XX>

         Required Parameter
         ------------------
         -backup:cfe
         -backup:nvram
         -backup:kernel
         -backup:wholeflash
         -backup:custom
         -erase:cfe
         -erase:nvram
         -erase:kernel
         -erase:wholeflash
         -erase:custom
         -flash:cfe
         -flash:nvram
         -flash:kernel
         -flash:wholeflash
         -flash:custom
         -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
         /nodma ............. force use of PRACC routines (No DMA)
         /window:XXXXXXXX ... custom flash window base (in HEX)
         /start:XXXXXXXX .... custom start location (in HEX)
         /length:XXXXXXXX ... custom length (in HEX)
         /silent ............ prevent scrolling display of data
         /skipdetect ........ skip auto detection of CPU Chip ID
         /instrlen:XX ....... set instruction length manually
         /wiggler ........... use wiggler cable

         /fc:XX = Optional (Manual) Flash Chip Selection
         -----------------------------------------------
         /fc:01 ............. AMD 29lv160DB 1Mx16 BotB (2MB)
         /fc:02 ............. AMD 29lv160DT 1Mx16 TopB (2MB)
         /fc:03 ............. AMD 29lv320DB 2Mx16 BotB (4MB)
         /fc:04 ............. AMD 29lv320DT 2Mx16 TopB (4MB)
         /fc:05 ............. AMD 29lv320MB 2Mx16 BotB (4MB)
         /fc:06 ............. AMD 29lv320MT 2Mx16 TopB (4MB)
         /fc:07 ............. AMD 29lv320MT 2Mx16 TopB (4MB)
         /fc:08 ............. Intel 28F128J3 8Mx16    (16MB)
         /fc:09 ............. Intel 28F160B3 1Mx16 BotB  (2MB)
         /fc:10 ............. Intel 28F160B3 1Mx16 TopB  (2MB)
         /fc:11 ............. Intel 28F160C3 1Mx16 BotB  (2MB)
         /fc:12 ............. Intel 28F160C3 1Mx16 TopB  (2MB)
         /fc:13 ............. Intel 28F160S3/5 1Mx16    (2MB)
         /fc:14 ............. Intel 28F320B3 2Mx16 BotB  (4MB)
         /fc:15 ............. Intel 28F320B3 2Mx16 TopB  (4MB)
         /fc:16 ............. Intel 28F320C3 2Mx16 BotB  (4MB)
         /fc:17 ............. Intel 28F320C3 2Mx16 TopB  (4MB)
         /fc:18 ............. Intel 28F320J3 2Mx16    (4MB)
         /fc:19 ............. Intel 28F320J5 2Mx16    (4MB)
         /fc:20 ............. Intel 28F320S3/5 2Mx16    (4MB)
         /fc:21 ............. Intel 28F640B3 4Mx16 BotB  (8MB)
         /fc:22 ............. Intel 28F640B3 4Mx16 TopB  (8MB)
         /fc:23 ............. Intel 28F640C3 4Mx16 BotB  (8MB)
         /fc:24 ............. Intel 28F640C3 4Mx16 TopB  (8MB)
         /fc:25 ............. Intel 28F640J3 4Mx16    (8MB)
         /fc:26 ............. Intel 28F640J5 4Mx16    (8MB)
         /fc:27 ............. MBM29LV320BE 2Mx16 BotB (4MB)
         /fc:28 ............. MBM29LV320TE 2Mx16 TopB (4MB)
         /fc:29 ............. MX29LV320B 2Mx16 BotB    (4MB)
         /fc:30 ............. MX29LV320B 2Mx16 BotB    (4MB)
         /fc:31 ............. MX29LV320T 2Mx16 TopB    (4MB)
         /fc:32 ............. MX29LV320T 2Mx16 TopB    (4MB)
         /fc:33 ............. SST39VF320 2Mx16          (4MB)
         /fc:34 ............. ST 29w320DB 2Mx16 BotB    (4MB)
         /fc:35 ............. ST 29w320DT 2Mx16 TopB    (4MB)
         /fc:36 ............. Sharp 28F320BJE 2Mx16 BotB (4MB)
         /fc:37 ............. TC58FVB321 2Mx16 BotB    (4MB)
         /fc:38 ............. TC58FVT321 2Mx16 TopB    (4MB)
         /fc:39 ............. AT49BV/LV16X 2Mx16 BotB (4MB)
         /fc:40 ............. AT49BV/LV16XT 2Mx16 TopB (4MB)
         /fc:41 ............. MBM29LV160B 1Mx16 BotB    (2MB)
         /fc:42 ............. MBM29LV160T 1Mx16 TopB    (2MB)
         /fc:43 ............. MX29LV161B 1Mx16 BotB    (2MB)
         /fc:44 ............. MX29LV161T 1Mx16 TopB    (2MB)
         /fc:45 ............. ST M29W160EB 1Mx16 BotB (2MB)
         /fc:46 ............. ST M29W160ET 1Mx16 TopB (2MB)
         /fc:47 ............. SST39VF1601 1Mx16 BotB    (2MB)
         /fc:48 ............. SST39VF1602 1Mx16 TopB    (2MB)
         /fc:49 ............. SST39VF3201 2Mx16 BotB    (4MB)
         /fc:50 ............. SST39VF3202 2Mx16 TopB    (4MB)
         /fc:51 ............. SST39VF6401 4Mx16 BotB    (8MB)
         /fc:52 ............. SST39VF6402 4Mx16 TopB    (8MB)
         /fc:53 ............. K8D1716UTC  1Mx16 TopB    (2MB)
         /fc:54 ............. K8D1716UBC  1Mx16 BotB    (2MB)
         /fc:55 ............. MX29LV800BTC 512kx16 TopB  (1MB)
         /fc:56 ............. MX29LV800BTC 512kx16 BotB  (1MB)
         /fc:57 ............. K8D3216UTC  2Mx16 TopB    (4MB)
         /fc:58 ............. K8D3216UBC  2Mx16 BotB    (4MB)
         /fc:59 ............. SST39VF6401B 4Mx16 BotB (8MB)
         /fc:60 ............. SST39VF6402B 4Mx16 TopB (8MB)

yy5409 · 发表于 2009-4-11 23:58

这个不能说FLASH是坏了，有的需要加参数才能识别或者JTAG的软件版本问题！！！

gogogo106 · 发表于 2009-4-12 00:07

有试过加参数 /fc:16 和 /fc:17 也一样

[ 本帖最后由 gogogo106 于 2009-4-13 17:59 编辑 ]

yy5409 · 发表于 2009-4-12 00:19

试试这个JTAG软件
http://www.namipan.com/d/be232f9 ... 085ffe85ddba8000c00

topwifi · 发表于 2009-4-12 01:05

原帖由 yy5409 于 2009-4-12 00:19 发表
试试这个JTAG软件
http://www.namipan.com/d/be232f9 ... 085ffe85ddba8000c00

你可以啊，现在还没睡觉。。。。。。。加我qq1580176

gogogo106 · 发表于 2009-4-12 10:29

清除nvram也不行,跟原来一样.

-----------------------------------------------------
D:\jtag2\windows>brjtag -erase:nvram /fc:51

===============================================
Broadcom EJTAG Debrick Utility v1.6r-hugebird
===============================================

Probing bus ... Done

Instruction Length set to 8

CPU running under LITTLE endian

CPU Chip ID: 00100100011100010010000101111111 (2471217F)
*** Found a Broadcom BCM4712 Rev 2 CPU chip ***

- EJTAG IMPCODE ....... : 00000000100000000000100100000100 (00800904)
- EJTAG Version ....... : 1 or 2.0
- EJTAG DMA Support ... : Yes
- EJTAG Implementation flags: R4k MIPS32

Issuing Processor / Peripheral Reset ... Done
Enabling Memory Writes ... Done
Halting Processor ... <

rocessor Entered Debug Mode!> ... Done
Clearing Watchdog ... Done
Loading CPU Configuration Code ... Skipped

Manual Flash Selection ... Matching Flash Chip (VenID

evID = 0089 : 88c5)

*** Manually Selected a Intel 28F320C3 2Mx16 BotB (4MB) Flash Chip ***

- Flash Chip Window Start .... : 1fc00000
- Flash Chip Window Length ... : 00400000
- Selected Area Start ........ : 1fff0000
- Selected Area Length ....... : 00010000

*** You Selected to Erase the NVRAM.BIN ***

=========================
Erasing Routine Started
=========================
Total Blocks to Erase: 1

Erasing block: 71 (addr = 1fff0000)...

gogogo106 · 发表于 2009-4-12 10:33

D:\jtag2\windows>brjtag -flash:cfe

===============================================
Broadcom EJTAG Debrick Utility v1.6r-hugebird
===============================================

Probing bus ... Done

Instruction Length set to 8

CPU running under LITTLE endian

CPU Chip ID: 00100100011100010010000101111111 (2471217F)
*** Found a Broadcom BCM4712 Rev 2 CPU chip ***

- EJTAG IMPCODE ....... : 00000000100000000000100100000100 (00800904)
- EJTAG Version ....... : 1 or 2.0
- EJTAG DMA Support ... : Yes
- EJTAG Implementation flags: R4k MIPS32

Issuing Processor / Peripheral Reset ... Done
Enabling Memory Writes ... Done
Halting Processor ... <

rocessor Entered Debug Mode!> ... Done
Clearing Watchdog ... Done
Loading CPU Configuration Code ... Skipped

Probing Flash at (Probe Address: 0x1fc00000) ...
Detected Chip ID with BSC/SCS Routine (VenID

evID = 0000 : 0000)
Detected Chip ID with AMD/Spansion Routine (VenID