JTAG用于5354求助

shu***

我有几块板,CPU用的BCM5354KFBG,HA0903 P13,907915,FLASH有MX29LV320DBTC，29LV320CBTC和29LV640DBTC,还有备用SPI的，内存是DDR的K4H561638
我用的JTAG软件是v2的，支持BCM5354 REV2,但实际结果如下
C:\tjtagv2\windows>tjtagv2  -backup:nvram

==========================================
EJTAG Debrick Utility v2.1.4-Tornado-MOD
==========================================

Probing bus ... Done

Instruction Length set to 5

CPU Chip ID: 00110101001101010100000101111111 (3535417F)
*** Unknown or NO CPU Chip ID Detected ***

*** Possible Causes:
1) Device is not Connected.
2) Device is not Powered On.
3) Improper JTAG Cable.
4) Unrecognized CPU Chip ID.

跳过CPU检测结果如下
C:\tjtagv2\windows>tjtagv2  -backup:cfe /skipdetect

==========================================
EJTAG Debrick Utility v2.1.4-Tornado-MOD
==========================================

Probing bus ... Done

Instruction Length set to 0

CPU Chip ID: 00000000000000000000000000000000 (00000000)
*** CHIP DETECTION OVERRIDDEN ***

- EJTAG IMPCODE ....... : 00000000000000000000000000000000 (00000000)
- 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 ... <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 ***

手动设置FLASH型号：
备份CFE和NVRAM都成功（当然我的芯片里面实际是空的），但写入失败
C:\tjtagv2\windows>tjtagv2  -erase:nvram /skipdetect /fc:31

==========================================
EJTAG Debrick Utility v2.1.4-Tornado-MOD
==========================================

Probing bus ... Done

Instruction Length set to 0

CPU Chip ID: 00000000000000000000000000000000 (00000000)
*** CHIP DETECTION OVERRIDDEN ***

- EJTAG IMPCODE ....... : 00000000000000000000000000000000 (00000000)
- 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 ... <Processor Entered Debug Mode!> ... Done
Clearing Watchdog ... Done
Manual Flash Selection ... Done

Flash Vendor ID: 00000000000000000000000011000010 (000000C2)
Flash Device ID: 00000000000000000010001010101000 (000022A8)
*** Manually Selected a MX29LV320B 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)...
到这就不动了

lar***

插拔一下电源
或者按一下复位键试试

shu***

试过无数遍了，JTAG线我用过自己做的只用电阻的，也用过XILINX的线（看了一下资料应该一样）

[ 本帖最后由 shuhans 于 2009-3-30 18:07 编辑 ]

e***

我开始和你的情况一样（不是一样的板），后来拆掉一颗RAM就可以随便写，重新装上又不行，可能是内部总线驱动力不足。

shu***

拆RAM是不可能的，只有一片K4H561638啊，现在我下了个新的JTAG工具，直接就能识别我的新版CPU了，但结果还是这样

C:\jtag>3 -erase:cfe

==============================================
EJTAG Debrick Utility v3.0 RC1 Tornado-MOD
==============================================

Probing bus ... Done

Instruction Length set to 8

CPU Chip ID: 00110101001101010100000101111111 (3535417F)
*** Found a Broadcom BCM5354 KFBG Rev 3 CPU chip ***

- EJTAG IMPCODE ....... : 00000000100000010000100100000100 (00810904)
- EJTAG Version ....... : 1 or 2.0
- EJTAG DMA Support ... : Yes
- EJTAG Implementation flags: R4k MIPS16 MIPS32

Issuing Processor / Peripheral Reset ... ECR: 0x00200100 Done
Enabling Memory Writes ...
后面没有反映了

ho***

问题解决了吗？我也遇到相同问题了
QQ：277303174

j***

1# shuhans

我也遇到类似的问题，
E:\xcv>jtag_test -probeonly
===============================================
Broadcom EJTAG Debrick Utility v1.6r-hugebird
===============================================
Probing bus ... Done
Instruction Length set to 8
CPU running under LITTLE endian
CPU Chip ID: 00110101001101010100000101111111 (3535417F)
*** Found a Broadcom BCM5354 KFBG Rev 3 CPU chip ***
- EJTAG IMPCODE ....... : 00000000100000010000100100000100 (00810904)
- EJTAG Version ....... : 1 or 2.0
- EJTAG DMA Support ... : Yes
- EJTAG Implementation flags: R4k MIPS16 MIPS32

Issuing Processor / Peripheral Reset ... issue_reset Done
Enabling Memory Writes ... 00000000000000000000000000011110 (0000001E)
issue_enable_mv Done
Halting Processor ... <

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

Probing Flash at (Probe Address: 0x1c000000) ...
00000000000000001111111111111111 (0000FFFF)
00000000000000000000000000000000 (00000000)
00000000000000001111111111111111 (0000FFFF)
Detected Chip ID with SST Routine (VenID