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本帖最后由 astralstorm 于 2011-10-21 11:49 编辑
求助! 用J-Link V8线和Brjtag软件救回Linksys WRTU54G-TM时遇到问题!
路由器是 LinkSys wrtu54-tm CPU为 infineon ADM8668FX A12 闪存为 8M flash(MX29LV640DBTC-90G)
Brjtag里如果输入:
brjtag -probeonly
出来的结果是
C:\brjtag>brjtag -probeonly
===============================================
Broadcom EJTAG Debrick Utility v2.0.5-hugebird
===============================================
WinIo sys driver initialization error!
输入brjtag -probeonly /cable:2 /fc:107 时结果为
===============================================
Broadcom EJTAG Debrick Utility v2.0.5-hugebird
===============================================
Open USB device: 0x1366:0101
Vendor Name: [SEGGER]
Produc Name: [J-Link]
Serial No : [000000123456]
Initializing J-Link HW Ver. 8.0
Set I/O speed to 3000 KHz
Detected target Vref = 0.679V
USB TAP device has been initialized. Please confirm VREF signal connected!
Press any key to continue... ONCE target board is powered on!
Jlink TLR reset error (1)
Probing bus ... ====>usb write[16], usb read[6],(st=1)
====>v3 return state[1],(5)
USB Port R/W error occur! Please reduce buffer size with /L5:1000 and try again.
板子上的jtag孔共有14个孔,在网上搜索的排序是
1 nTRST GND 2
3 TDI GND 4
5 TDO GND 6
7 TMS GND 8
9 TCK GND 10
11 nSRST 12
13 DINT VREF 14
我只接了1,3,5,7,9和6脚 ,第一脚我是接到了Jlink的VTref脚上 不知道对不对? Vref脚要不要接呢? 接到哪里?
还有感觉Detected target Vref = 0.679V 有点不对头! 不应该是3.3V吗? J-Link盒子上的灯这时是绿的
如果把第一脚不接到Jlink的VTref脚上时J-Link盒子上的灯是红的,而且输入命令后结果是:
C:\brjtag>brjtag -probeonly /cable:2
===============================================
Broadcom EJTAG Debrick Utility v2.0.5-hugebird
===============================================
Open USB device: 0x1366:0101
Vendor Name: [SEGGER]
Produc Name: [J-Link]
Serial No : [000000123456]
Initializing J-Link HW Ver. 8.0
Set I/O speed to 3000 KHz
Detected target Vref = 1.824V
USB TAP device has been initialized. Please confirm VREF signal connected!
Press any key to continue... ONCE target board is powered on!
Probing bus ... Done
Detected IR Length is 0
CPU Chip ID: 00000000000000000000000000000000 (00000000)
*** Unknown or NO CPU Chip ID Detected ***
*** Possible Causes:
1) Router/Modem is not Connected.
2) Router/Modem is not Powered On.
3) Improper JTAG Cable.
4) Unrecognized CPU Chip ID.
请各位好心人帮忙,特别是hugebird大侠
谢谢 |
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