如何调试bl602呢

[HoGC]

使用RV-Debugger-BL702对bl602进行调试，但是在打开OpenOCD时得到了IR capture error at bit 5, saw 0x01 not 0x...3的错误

Open On-Chip Debugger 0.10.0+dev (SiFive OpenOCD 0.10.0-2019.08.2)
Licensed under GNU GPL v2
For bug reports:
        https://github.com/sifive/freedom-tools/issues
adapter speed: 2000 kHz
Ready for Remote Connections
Info : clock speed 2000 kHz
Info : JTAG tap: riscv.cpu tap/device found: 0x20000c05 (mfg: 0x602 (<unknown>), part: 0x0000, ver: 0x2)
Error: IR capture error at bit 5, saw 0x01 not 0x...3
Warn : Bypassing JTAG setup events due to errors
Error: failed write at 0x10, status=1
Error: failed write at 0x10, status=1
Error: failed write at 0x10, status=1
Error: failed read at 0x10, status=1
Info : Listening on port 3333 for gdb connections
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections