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发表于 2022-12-29 14:58:45
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现在卡在openocd无法通过jtag识别已经下载到fpga中的cpu, 相应的信息如下:
Open On-Chip Debugger 0.11.0+dev-02442-gf7a5f4719
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
0
Started by GNU MCU Eclipse
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : clock speed 5000 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 : [riscv.cpu] 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 : [riscv.cpu] Unsupported DTM version: 15
Error : [riscv.cpu] Unsupported DTM version: 15
Error : [riscv.cpu] Unsupported DTM version: 15
Error : [riscv.cpu] Unsupported DTM version: 15
Error : [riscv.cpu] Unsupported DTM version: 15
Error : [riscv.cpu] Unsupported DTM version: 15
Error : [riscv.cpu] Unsupported DTM version: 15
shutdown command invoked
Error : [riscv.cpu] Unsupported DTM version: 15
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