RTT Studio使用DAP仿真器下载程序失败，换成st-link仿真器就好了

开始下载程序：2021-01-22 14:34:24
D:\RT-ThreadStudio>cd /d D:\RT-ThreadStudio\repo\Extract\DebuggerSupportPackages\RealThread\PyOCD\0.1.1
D:\RT-ThreadStudio\repo\Extract\DebuggerSupportPackages\RealThread\PyOCD\0.1.1>pyocd.exe flash —target=STM32H750XBHx —erase=auto —frequency=1000000 D:\RT-ThreadStudio\workspace\ledproject\Debug\rtthread.bin
0001798ERRORdiscovery:Exception while probing AP#4: STLink error (6): Internal error
Traceback (most recent call last):
File “pyocd\coresight\discovery.py”, line 124, in find_aps
File “pyocd\coresight\ap.py”, line 297, in probe
File “pyocd\coresight\dap.py”, line 589, in read_ap
File “pyocd\probe\stlink_probe.py”, line 183, in read_ap
File “pyocd\probe\stlink\stlink.py”, line 436, in read_dap_register
File “pyocd\probe\stlink\stlink.py”, line 307, in _check_status
pyocd.core.exceptions.ProbeError: STLink error (6): Internal error
0001954WARNINGrom_table:Invalid coresight component, cidr=0x0
0001954WARNINGrom_table:Invalid coresight component, cidr=0x594cab96
0002116CRITICAL__main:SWD/JTAG Transfer Fault @ 0x00010bb4-0x00010c4b
Traceback (most recent call last):
File “pyocd__main.py”, line 362, in run
File “pyocd__main.py”, line 527, in do_flash
File “pyocd\flash\file_programmer.py”, line 158, in program
File “pyocd\flash\loader.py”, line 168, in commit
File “pyocd\flash\builder.py”, line 421, in program
File “pyocd\flash\builder.py”, line 319, in _build_sectors_and_pages
File “pyocd\flash\builder.py”, line 264, in fill_end_of_page_gap
File “pyocd\core\coresight_target.py”, line 341, in read_memory_block8
File “pyocd\coresight\cortex_m.py”, line 661, in read_memory_block8
File “pyocd\core\memory_interface.py”, line 89, in read_memory_block8
File “pyocd\probe\stlink_probe.py”, line 271, in read_memory_block32
File “pyocd\probe\stlink\stlink.py”, line 387, in read_mem32
File “pyocd\probe\stlink\stlink.py”, line 345, in _read_mem
pyocd.core.exceptions.TransferFaultError: SWD/JTAG Transfer Fault @ 0x00010bb4-0x00010c4b
执行完毕, 耗时：3725ms.