提示报错：
SEED XDS560V2 USB Emulator_0/IcePick_D
Error connecting to the target:
(Error -181 @ 0x0)
The controller has detected a dead JTAG clock.
The user must turn-on or connect the JTAG clock for the target.
(Emulation package 5.1.232.0)
断电、重启、换了多个电脑等等都试过了，都不行，都是提示 dead clock
