TMS320F28388D: 连接cpu2失败，Device may be operating in low-power mode

连接cpu1可以正常连接，但是连接其他核，如cpu2都显示如下信息，

Trouble Halting Target CPU:
(Error -1156 @ 0x0)
Device may be operating in low-power mode. Do you want to bring it out of this mode? Choose 'Yes' to force the device to wake up and retry the operati