pb下编的内核连不上目标设备

pb下编的内核连不上目标设备
debug内一直都是这样的信息：
Kernel debugger is waiting to connect with target.
      0 PID:0 TID:0 Processor = 199Mhz, Bus = 99Mhz
      0 PID:0 TID:0 Sp=ffffc7cc
Kernel debugger failed to connect with target (KDBG open stream failed).
Debugger could not initialize connection.
Kernel debugger is waiting to connect with target.
      0 PID:0 TID:0 Processor = 199Mhz, Bus = 99Mhz
      0 PID:0 TID:0 Booting Windows CE version 4.20 for (ARM)
      0 PID:0 TID:0 &pTOC = 802011ac, pTOC = 81f4c818, pTOC->ulRamFree = 82a3e000, MemForPT = 00000000
      0 PID:0 TID:0
Old or invalid version stamp in kernel structures - starting clean!
      0 PID:0 TID:0 Configuring: Primary pages: 8127, Secondary pages: 0, Filesystem pages = 4063
      0 PID:0 TID:0
Booting kernel with clean memory configuration:
      0 PID:0 TID:0 Memory Sections:
      0 PID:0 TID:0 [0] : start: 82a3f000, extension: 00002000, length: 01fbf000
      0 PID:0 TID:0 Sp=ffffc7cc
      1 PID:0 TID:0 Windows CE KernelInit
Kernel debugger failed to connect with target (KDBG open stream failed).
Debugger could not initialize connection.
Kernel debugger is waiting to connect with target.
在pb中的操作都是正确的，有些工程开始能连上目标设备，但后来也出现这些信息

你的意思是说正确过，但不稳定？