wch-link已经正常安装 ，可以做download了。
但在debug模式时，console窗口如下提示，同时状态栏上方，的下一步，上一步均为置灰尘状态。
Open On-Chip Debugger 0.10.0+dev-gb0ae840-dirty (2021-06-19-14:16)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
Info : only one transport option; autoselect 'jtag'
Ready for Remote Connections
Started by GNU MCU Eclipse
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : WCH-Link version 2.1
Warn : The debug interface has been opened,there is a risk of code leakage ,ensure that the debug interface has been closed before leaving factory !
Info : wlink_init ok
Info : This adapter doesn't support configurable speed
Info : JTAG tap: riscv.cpu tap/device found: 0x20000001 (mfg: 0x000 (), part: 0x0000, ver: 0x2)
Warn : Bypassing JTAG setup events due to errors
Info : datacount=2 progbufsize=8
Info : Examined RISC-V core; found 1 harts
Info : hart 0: XLEN=32, misa=0x40101105
Info : Listening on port 3333 for gdb connections
Info : accepting 'gdb' connection on tcp/3333
Info : device id = 0x20000410
