rt-studio使用DAP-link不成功

发布于 2022-10-14 15:51:40 浏览：999 订阅该版

使用DAPLink，发现无法debug，也无法下载，会报如下错误：
```
0000971 W Overlapping memory regions in file ./packs/Keil.STM32L4xx_DFP.2.3.0-small.pack (STM32L412C8Tx); deleting outer region. Further warnings will be suppressed for this file. [cmsis_pack]
0001241 I Target type is stm32f405rg [board]
0001479 C Unexpected ACK value (5) returned by probe [__main__]
[2mTraceback (most recent call last):
  File "pyocd\probe\cmsis_dap_probe.py", line 345, in read_dp
  File "pyocd\probe\pydapaccess\dap_access_cmsis_dap.py", line 976, in read_reg
  File "pyocd\probe\pydapaccess\dap_access_cmsis_dap.py", line 970, in read_reg_cb
  File "pyocd\probe\pydapaccess\dap_access_cmsis_dap.py", line 154, in get_result
  File "pyocd\utility\concurrency.py", line 29, in _locking
  File "pyocd\probe\pydapaccess\dap_access_cmsis_dap.py", line 790, in flush
  File "pyocd\utility\concurrency.py", line 29, in _locking
  File "pyocd\probe\pydapaccess\dap_access_cmsis_dap.py", line 1056, in _read_packet
  File "pyocd\probe\pydapaccess\dap_access_cmsis_dap.py", line 473, in decode_data
  File "pyocd\probe\pydapaccess\dap_access_cmsis_dap.py", line 442, in _decode_transfer_block_data
  File "pyocd\probe\pydapaccess\dap_access_cmsis_dap.py", line 365, in _check_response
pyocd.probe.pydapaccess.dap_access_api.DAPAccessIntf.TransferError: Unexpected ACK value (5) returned by probe

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "pyocd\__main__.py", line 161, in run
  File "pyocd\subcommands\gdbserver_cmd.py", line 190, in invoke
  File "pyocd\core\session.py", line 386, in __enter__
  File "pyocd\core\session.py", line 523, in open
  File "pyocd\board\board.py", line 124, in init
  File "pyocd\core\soc_target.py", line 147, in init
  File "pyocd\utility\sequencer.py", line 213, in invoke
  File "pyocd\utility\sequencer.py", line 208, in invoke
  File "pyocd\coresight\dap.py", line 406, in _connect
  File "pyocd\coresight\dap.py", line 180, in connect
  File "pyocd\coresight\dap.py", line 221, in _connect_dp
  File "pyocd\coresight\dap.py", line 248, in read_idr
  File "pyocd\probe\cmsis_dap_probe.py", line 348, in read_dp
pyocd.core.exceptions.TransferError: Unexpected ACK value (5) returned by probe[0m
```