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C6657连接不上JTAG,错误The value is '-233' (0xffffff17).The title is 'SC_ERR_PATH_BROKEN'.

Other Parts Discussed in Thread: CDCE62005

      新做了一个6657的板子,DSP时钟用CDCE62005配置,16个GPIO[15:0] 赋值为16hD801;也就是NOBOOT 模式,电源配置、复位配置也是按照官方开发板推荐的时序手册供电的,且每个电源的POWER_GOOD指示灯都指示正确,配置的是CVDD1V, CVDD1 也是1V,系统时钟是100M,测试了下也有分频的16.6M时钟输出,但是发现DSP的DSP_BOOTCOMPLETE 这个管脚没有拉高,我用黑鹰的560V2连接CCS连接报错,我的JTAG供电是1.8V的,查了下黑鹰的V2是支持1.8V电平标准的,现在一直连接不上,报错如下:

The value is '-233' (0xffffff17).
The title is 'SC_ERR_PATH_BROKEN'.

The explanation is:
The JTAG IR and DR scan-paths cannot circulate bits, they may be broken.
An attempt to scan the JTAG scan-path has failed.
The target's JTAG scan-path appears to be broken
with a stuck-at-ones or stuck-at-zero fault.

我再贴上我的JTAG下载电路,确认了下JTAG下载接口脚的对应关系是没有错的,

在网上查了下有人说可能是TRSTN的下拉电阻阻值问题,换了10K还是报同样的错误,现在不知道该从哪个方面开始查,感觉DSP工作时起来的,触摸下DSP也有点发热,应该是工作起来了,请大神们给点解决思路,找不到器件的话,DSP所有工作都干不了了