Error: target 'fpga_spinal.cpu0' init failed

[ottotto335]

Open On-Chip Debugger 0.11.0+dev-04033-g058dfa50d (2023-02-20-09:48) Licensed under GNU GPL v2 For bug reports, read http://openocd.org/doc/doxygen/bugs.html /home/wjc/Desktop/VexRiscv_old/cpu0.yaml DEPRECATED! use 'adapter driver' not 'interface' Info : only one transport option; autoselect 'jtag' DEPRECATED! use 'adapter speed' not 'adapter_khz' DEPRECATED! use 'adapter srst delay' not 'adapter_nsrst_delay' Info : set servers polling period to 50ms Error: target 'fpga_spinal.cpu0' init failed

I try to use eclipse to debug the project "Vexriscv.demo.GenFull" , and set the configuration like https://drive.google.com/open?id=1c46tyEV0xLwOsk76b0y2qqs8CYy7Zq3f, what's wrong with it?

[Dolu1990]

Hi, what command are you using to run openocd ? which SoC are you targeting, on real hardware ?

[ottotto335]

-c "set VEXRISCV_YAML /home/vexriscv/Desktop/VexRiscv_old/cpu0.yaml" -f /home/vexriscv/Desktop/openocd_riscv/tcl/target/vexriscv_sim.cfg i want to use verilator,what should I do?

[Dolu1990]

Are you targeting a simulation ? or real hardware via usb jtag ?

[ottotto335]

yes i'm targeting a simulation

[Dolu1990]

Ahhh ok, which simulation testbench are you running exactly ?

[ottotto335]

#In the VexRiscv repository, to run the simulation on which one OpenOCD can connect itself => sbt "runMain vexriscv.demo.GenFull" cd src/test/cpp/regression make run DEBUG_PLUGIN_EXTERNAL=yes

#In the openocd git, after building it => src/openocd -c "set VEXRISCV_YAML PATH_TO_THE_GENERATED_CPU0_YAML_FILE" -f tcl/target/vexriscv_sim.cfg

#Run a GDB session with an elf RISCV executable (GenFull CPU) YourRiscvToolsPath/bin/riscv32-unknown-elf-gdb VexRiscvRepo/src/test/resources/elf/uart.elf target remote localhost:3333 monitor reset halt load continue

I just follow this example in eclipse, using sbt in terminal to make the "cpu0.yaml" , then set up the configuration in eclipse with the rest of these commands

[Dolu1990]

Hmm, did you used a absolute path for the """PATH_TO_THE_GENERATED_CPU0_YAML_FILE""" ?

[ottotto335]

yes I replace it with the path on my pc, it's /home/591867/Desktop/VexRiscv/cpu0.yaml

[Dolu1990]

So, i just tried on my side using your commands, and it seems fine. Here is the openocd logs when i run it :

Open On-Chip Debugger 0.11.0+dev-02583-g9d50e3c2f-dirty (2022-10-27-11:30)
Licensed under GNU GPL v2
For bug reports, read
        http://openocd.org/doc/doxygen/bugs.html
....VexRiscv/cpu0.yaml
DEPRECATED! use 'adapter driver' not 'interface'
Info : only one transport option; autoselect 'jtag'
DEPRECATED! use 'adapter speed' not 'adapter_khz'
DEPRECATED! use 'adapter srst delay' not 'adapter_nsrst_delay'
Info : set servers polling period to 50ms
Info : clock speed 4000 kHz
Info : TAP fpga_spinal.bridge does not have valid IDCODE (idcode=0x0)
Info : TAP auto0.tap does not have valid IDCODE (idcode=0x80000000)
Info : TAP auto1.tap does not have valid IDCODE (idcode=0xc0000000)
Info : TAP auto2.tap does not have valid IDCODE (idcode=0xe0000000)
Info : TAP auto3.tap does not have valid IDCODE (idcode=0xf0000000)
Info : TAP auto4.tap does not have valid IDCODE (idcode=0xf8000000)
Info : TAP auto5.tap does not have valid IDCODE (idcode=0xfc000000)
Info : TAP auto6.tap does not have valid IDCODE (idcode=0xfe000000)
Info : TAP auto7.tap does not have valid IDCODE (idcode=0xff000000)
Info : TAP auto8.tap does not have valid IDCODE (idcode=0xff800000)
Info : TAP auto9.tap does not have valid IDCODE (idcode=0xffc00000)
Info : TAP auto10.tap does not have valid IDCODE (idcode=0xffe00000)
Info : TAP auto11.tap does not have valid IDCODE (idcode=0xfff00000)
Info : TAP auto12.tap does not have valid IDCODE (idcode=0xfff80000)
Info : TAP auto13.tap does not have valid IDCODE (idcode=0xfffc0000)
Info : TAP auto14.tap does not have valid IDCODE (idcode=0xfffe0000)
Info : TAP auto15.tap does not have valid IDCODE (idcode=0xffff0000)
Info : TAP auto16.tap does not have valid IDCODE (idcode=0xffff8000)
Info : TAP auto17.tap does not have valid IDCODE (idcode=0xffffc000)
Info : TAP auto18.tap does not have valid IDCODE (idcode=0xffffe000)
Info : TAP auto19.tap does not have valid IDCODE (idcode=0xfffff000)
Warn : Unexpected idcode after end of chain: 21 0xfffff800
Error: double-check your JTAG setup (interface, speed, ...)
Error: Trying to use configured scan chain anyway...
Error: fpga_spinal.bridge: IR capture error; saw 0x0f not 0x01
Warn : Bypassing JTAG setup events due to errors
[fpga_spinal.cpu0] Target successfully examined.
Info : starting gdb server for fpga_spinal.cpu0 on 3333
Info : Listening on port 3333 for gdb connections
requesting target halt and executing a soft reset
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : accepting 'telnet' connection on tcp/4444

I can then connect via telnet on it and do stuff.

You keept the "make run DEBUG_PLUGIN_EXTERNAL=yes" command runnig while you run openocd in another terminal ? (for now, don't add eclipse in the mix ^^)

[ottotto335]

emmm I can also do this in terminal on my pc, but I'm asked to debug the project with eclipse . so actually I'm following this part ->"Using Eclipse to run and debug the software", and it isn't that clear, so could you please tell me how to set the configuartion in eclipse to run it?

[Dolu1990]

Ahhh nice, that's already a good step. So if you get

Open On-Chip Debugger 0.11.0+dev-04033-g058dfa50d (2023-02-20-09:48)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
/home/wjc/Desktop/VexRiscv_old/cpu0.yaml
DEPRECATED! use 'adapter driver' not 'interface'
Info : only one transport option; autoselect 'jtag'
DEPRECATED! use 'adapter speed' not 'adapter_khz'
DEPRECATED! use 'adapter srst delay' not 'adapter_nsrst_delay'
Info : set servers polling period to 50ms
Error: target 'fpga_spinal.cpu0' init failed

It it maybe because you ran openocd twice ? once in the background, once with eclipse itself ? Personnaly, i'm not using eclipse to run openocd, i just let openocd run in the backgroud

[ottotto335]

so I should let openocd run in the backgroud,and just use eclipse to run gdb? Then where should I print this command "make run DEBUG_PLUGIN_EXTERNAL=yes"? In another terminal or builder setting in eclipse?

[Dolu1990]

so I should let openocd run in the backgroud,and just use eclipse to run gdb?

That's the way i'm doing it yes.

Then where should I print this command "make run DEBUG_PLUGIN_EXTERNAL=yes"? In another terminal or builder setting in eclipse?

Another terminal ^^

[ottotto335]

oh I see, thanks a lot!^^ one last question,when I run gdb in eclipse, where should I print the path of .elf file in this command -> YourRiscvToolsPath/bin/riscv32-unknown-elf-gdb VexRiscvRepo/src/test/resources/elf/uart.elf in Run->Debug Configurations->GDB OpenOCD Debugging->Debugger->GDB client Setup->other options I guess?

[Dolu1990]

ahhh to provide the elf to eclipse run configuration :

[ottotto335]

ok get it ! that's all, thanks for your help!^