按照上述方法，得到以下错误提示，无法连接到芯片。其中上电之后，设备就提示为BULK interface，安装jlink驱动后，变为jlink设备；使用LPCScrypt2.1.0842\scripts\program_JLINK.cmd处理后没有变化；使用Usb drive tool后变为j-link drive(WinUSB)并没有变为BULK interface。
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: rv32m1.cpu: IR capture error; saw 0x0f not 0x01
Warn : Bypassing JTAG setup events due to errors
Info : adv debug unit is configured with option ADBG_USE_HISPEED
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff
Error: Burst read failed
Error: Couldn’t read the CPU state
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff
Warn : CRC ERROR! Computed 0x00000000, read CRC 0xffffffff