28335与仿真器连接失败是啥问题

只看该作者 · 2017-2-14 08:20

debug 提示下面错误
rror connecting to the target:
(Error -234 @ 0x0)
The instruction scan-path cannot circulate bits, it may be broken.
An attempt to scan the JTAG instruction registers has failed.
The target's JTAG instruction path appears to be broken
with a stuck-at-ones or stuck-at-zero fault.
(Emulation package 5.1.232.0)

仿真器连接另一开发板没有问题，问题出在哪里？