移植n101软核到非官方指定的FPGA板卡中（XC7A100TFGG676-1),蜂鸟调试器连接JTAG接口（二线JTAG调试），在使用openocd连接JTAG时，发现有报错，如下所示：
D:\OpenOCD\bin>openocd -f openocd_hbird.cfg
Open On-Chip Debugger 0.11.0 (2021-11-18) [https://github.com/sysprogs/openocd]
Licensed under GNU GPL v2
libusb1 09e75e98b4d9ea7909e8837b7a3f00dda4589dc3
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
DEPRECATED! use ‘adapter speed’ not ‘adapter_khz’
DEPRECATED! use ‘adapter driver’ not ‘interface’
DEPRECATED! use ‘ftdi vid_pid’ not ‘ftdi_vid_pid’
DEPRECATED! use ‘ftdi layout_init’ not ‘ftdi_layout_init’
DEPRECATED! use ‘ftdi layout_signal’ not ‘ftdi_layout_signal’
DEPRECATED! use ‘ftdi layout_signal’ not ‘ftdi_layout_signal’
DEPRECATED! use ‘ftdi layout_signal’ not ‘ftdi_layout_signal’
DEPRECATED! use ‘ftdi layout_signal’ not ‘ftdi_layout_signal’
DEPRECATED! use ‘ftdi layout_signal’ not ‘ftdi_layout_signal’
DEPRECATED! use ‘ftdi layout_signal’ not ‘ftdi_layout_signal’
Info : auto-selecting first available session transport “jtag”. To override use ‘transport select
Info : clock speed 1000 kHz
Error: JTAG scan chain interrogation failed: all ones
Error: Check JTAG interface, timings, target power, etc.
Error: Trying to use configured scan chain anyway…
Error: riscv.cpu: IR capture error; saw 0x1f not 0x01
Warn : Bypassing JTAG setup events due to errors
Error: Unsupported DTM version: 15
Warn : target riscv.cpu examination failed
Info : starting gdb server for riscv.cpu on 3333
Info : Listening on port 3333 for gdb connections
Error: Target not examined yet
Error: Unsupported DTM version: 15
接口连线正确，有人遇到过这种情况吗？应该怎么解决？多谢！！！！
修改之后还是报错，日志如下：
Open On-Chip Debugger 0.11.0+dev-01889-geee887d60 (2022-01-13-23:33)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
DEPRECATED! use 'adapter speed' not 'adapter_khz'
DEPRECATED! use 'adapter driver' not 'interface'
Info : auto-selecting first available session transport "jtag". To override use 'transport select <transport>'.
Info : Using libusb driver
Info : clock speed 1000 kHz
Info : hbird_debugger: This TAP's version is too old, trying use async sequence to handshake..
Info : hbird_debugger: This TAP's version is too old, trying use async sequence to handshake..
Error: JTAG scan chain interrogation failed: all ones
Error: Check JTAG interface, timings, target power, etc.
Error: Trying to use configured scan chain anyway...
Error: riscv.cpu: IR capture error; saw 0x1f not 0x01
Info : hbird_debugger: This TAP's version is too old, trying use async sequence to handshake..
Warn : Bypassing JTAG setup events due to errors
Error: Unsupported DTM version: 15
Warn : target riscv.cpu examination failed
Info : starting gdb server for riscv.cpu on 3333
Info : Listening on port 3333 for gdb connections
Error: Target not examined yet
Error: Unsupported DTM version: 15
怎么解决呢？
蜂鸟调试器用的是哪一代的呢，V2版本才支持两线调试
两线调试需要将openocd的配置文件修改一下
ftdi_oscan1_mode off 改成 ftdi_oscan1_mode on
修改之后还是报错，日志如下：
Open On-Chip Debugger 0.11.0+dev-01889-geee887d60 (2022-01-13-23:33)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
DEPRECATED! use 'adapter speed' not 'adapter_khz'
DEPRECATED! use 'adapter driver' not 'interface'
Info : auto-selecting first available session transport "jtag". To override use 'transport select <transport>'.
Info : Using libusb driver
Info : clock speed 1000 kHz
Info : hbird_debugger: This TAP's version is too old, trying use async sequence to handshake..
Info : hbird_debugger: This TAP's version is too old, trying use async sequence to handshake..
Error: JTAG scan chain interrogation failed: all ones
Error: Check JTAG interface, timings, target power, etc.
Error: Trying to use configured scan chain anyway...
Error: riscv.cpu: IR capture error; saw 0x1f not 0x01
Info : hbird_debugger: This TAP's version is too old, trying use async sequence to handshake..
Warn : Bypassing JTAG setup events due to errors
Error: Unsupported DTM version: 15
Warn : target riscv.cpu examination failed
Info : starting gdb server for riscv.cpu on 3333
Info : Listening on port 3333 for gdb connections
Error: Target not examined yet
Error: Unsupported DTM version: 15
怎么解决呢？