d:\Code\git_repo\github\pyOCD\test>python gdb_test.py
INFO:root:new board id detected: 020002001312A2A5EEED5F5D
0 => MBED MBED CMSIS-DAP (0xd28, 0x204) [kl25z]
DEBUG:root:init board <pyOCD.board.mbed_board.MbedBoard instance at 0x020F9EE0>
INFO:root:DAP SWD MODE initialised
INFO:root:IDCODE: 0xBC11477
INFO:root:KL25Z not in secure state
INFO:root:2 hardware breakpoints
DEBUG:root:fpb has been disabled
INFO:root:GDB server started
INFO:root:One client connected!
DEBUG:root:GDB received query: ['Supported', 'qRelocInsn+#9a']
DEBUG:root:gdb client has ack!
DEBUG:root:gdb client has ack!
DEBUG:root:GDB received query: ['Xfer', 'features', 'read', 'target.xml', '0,7fb
#4a']
DEBUG:root:GDB query read_feature: offset: 0, size: 2043
DEBUG:root:gdb client has ack!
DEBUG:root:GDB lastSignal: 17
DEBUG:root:gdb client has ack!
DEBUG:root:gdb client has ack!
DEBUG:root:GDB received query: ['C#b4']
DEBUG:root:gdb client has ack!
DEBUG:root:GDB received query: ['Attached#8f']
DEBUG:root:gdb client has ack!
DEBUG:root:GDB received query: ['Offsets#4b']
DEBUG:root:gdb client has ack!
DEBUG:root:GDB reg: 0 = 0x0
DEBUG:root:GDB reg: 1 = 0x400
DEBUG:root:GDB reg: 2 = 0x5C40
DEBUG:root:GDB reg: 3 = 0x46
DEBUG:root:GDB reg: 4 = 0x400FF040
DEBUG:root:GDB reg: 5 = 0x40000
DEBUG:root:GDB reg: 6 = 0xE216E066
DEBUG:root:GDB reg: 7 = 0x0
DEBUG:root:GDB reg: 8 = 0x3EC82910
DEBUG:root:GDB reg: 9 = 0x20000628
DEBUG:root:GDB reg: 10 = 0x1FFF3000
DEBUG:root:GDB reg: 11 = 0x0
DEBUG:root:GDB reg: 12 = 0xE00CEAA0
DEBUG:root:GDB reg: 13 = 0x20002FE8
DEBUG:root:GDB reg: 14 = 0x5FD
DEBUG:root:GDB reg: 15 = 0x5C4
DEBUG:root:GDB reg: 16 = 0x1000000
DEBUG:root:gdb client has ack!
DEBUG:root:GDB received query: ['Xfer', 'memory-map', 'read', '', '0,7fb#e9']
DEBUG:root:GDB query momery_map: offset: 0, size: 2043
DEBUG:root:gdb client has ack!
DEBUG:root:read blocks aligned at 0x5C4, size: 0x4
DEBUG:root:gdb client has ack!
DEBUG:root:GDB received query: ['Symbol', '', '#5b']
DEBUG:root:gdb client has ack!
DEBUG:root:GDB received query: ['TStatus#49']
DEBUG:root:gdb client has ack!
DEBUG:root:gdb client has ack!
DEBUG:root:flash write addr: 0x0
DEBUG:root:gdb client has ack!
DEBUG:root:flash write addr: 0x400
DEBUG:root:gdb client has ack!
DEBUG:root:flash write addr: 0x410
DEBUG:root:gdb client has ack!
DEBUG:root:flash write addr: 0x744
DEBUG:root:gdb client has ack!
DEBUG:root:flash write addr: 0x74c
DEBUG:root:gdb client has ack!
INFO:root:flashing 1196 bytes
DEBUG:root:write blocks aligned at 0x20002000, size: 0x400
[=================   ] 85%DEBUG:root:write blocks aligned at 0x20002000, size: 0
xAC
[====================] 100%
DEBUG:root:reset stop on Reset
Exception in thread Thread-3:
Traceback (most recent call last):
  File "C:\Python27\lib\threading.py", line 808, in __bootstrap_inner
    self.run()
  File "C:\Python27\lib\site-packages\pyOCD\gdbserver\gdbserver.py", line 169, i
n run
    [resp, ack, detach] = self.handleMsg(data)
  File "C:\Python27\lib\site-packages\pyOCD\gdbserver\gdbserver.py", line 231, i
n handleMsg
    return self.flashOp(msg[2:]), 1, 0
  File "C:\Python27\lib\site-packages\pyOCD\gdbserver\gdbserver.py", line 386, i
n flashOp
    self.target.resetStopOnReset()
  File "C:\Python27\lib\site-packages\pyOCD\target\cortex_m.py", line 391, in re
setStopOnReset
    self.halt()
  File "C:\Python27\lib\site-packages\pyOCD\target\cortex_m.py", line 360, in ha
lt
    self.writeMemory(DHCSR, DBGKEY | C_DEBUGEN | C_HALT)
  File "C:\Python27\lib\site-packages\pyOCD\target\cortex_m.py", line 216, in wr
iteMemory
    self.transport.writeMem(addr, value, transfer_size)
  File "C:\Python27\lib\site-packages\pyOCD\transport\cmsis_dap.py", line 133, i
n writeMem
    [addr, data])
  File "C:\Python27\lib\site-packages\pyOCD\transport\cmsis_dap_core.py", line 2
07, in dapTransfer
    raise ValueError('SWD Fault')
ValueError: SWD Fault