ETTUS B200上面的JTAG没有响应

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scematics可以在下面看到：
http://files.ettus.com/schematics/b200/b200.pdf
jtag连接正在进行中。
3左下方;
M位在第6页，搜索'M0';
int_b在pg上。
6;
prob_b在pg上。
6;
祝你今天愉快
卡斯滕



以下为原文

scematics can be seen under:http://files.ettus.com/schematics/b200/b200.pdfjtag connection is on pg. 3 bottom left,;M-bits are on pg 6, search for 'M0';int_b is on pg. 6;prob_b is on pg. 6;have a nice dayCarsten

请提供以下详细信息以找出问题所在
什么是错误代码和日志文件信息？
电缆部件号是多少？
什么是O / S版本和工具细节
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以下为原文

Please provide the below details to find out the problem

• What is the error code and log file information?
  
• What is the cable part number?
  
• what is theO/S version and tools details
  

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嗨，
我解决了
我不得不重新编程'SPI主机'以确保将Prog_b引脚驱动为低电平并将Init_b驱动为高电平，现在jtag正在响应。
>请提供以下详细信息以找出问题所在
>
> 1.错误代码和日志文件信息是什么？
> 2.电缆部件号是多少？
> 3.什么是O / S版本和工具详细信息
>
> Kodali
1.在iMPACT中初始化JTAG链时： 
- >窗口弹出〜'检测到很多未知设备，继续吗？' 
- >是 - >大红框'识别失败'（就像jtag-cable没有插入电路板一样）
2. Digilent HS2 Rev. A.
3.来自ISE Suite 14.7的iMPACT
祝你今天愉快
卡斯滕



以下为原文

Hi,I solved it. I had to reprogramm the 'SPI master' to ensure to drive Prog_b pin low and the Init_b high, and now jtag is responding.>Please provide the below details to find out the problem>> 1.   What is the error code and log file information?>  2.  What is the cable part number?>  3.  what is theO/S version and tools details>>Kodali1. While initialising the JTAG chain in iMPACT:  -> Window pop up ~'to many unknown devices detected, continue?'  ->On yes -> Big red box 'Identify Failed' (same as if the jtag-cable isn't plugged into the board)2. Digilent HS2 Rev. A3. iMPACT from ISE Suite 14.7have a nice dayCarsten

请发送以下有助于调试的详细信息
错误代码
日志文件信息
状态寄存器细节
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以下为原文

Please send the below details which helps in debugging

• Error code
  
• Log file information
  
• status register details
  

________________________________________________

Please mark this post as an "Accept as solution" in case if it helped to resolve your query. So that it will help to other forum users to directly refer to the answer.

Give kudos to this post in case if you think the information is useful and reply oriented.