hpm6360evk

1. Download and install toolchain:

   curl https://github.com/hpmicro/riscv-gnu-toolchain/releases/tag/2022.05.15
   

2. Download and install openocd.

Download hpmicro sdk_env, openocd in the path: sdk_env/tools/openocd

3. Configure and build NuttX:

   mkdir ./nuttxspace
   cd ./nuttxspace
   git clone https://github.com/apache/nuttx.git nuttx
   git clone https://github.com/apache/nuttx-apps.git apps
   cd nuttx
   make distclean
   ./tools/configure.sh hpm6750evk2:nsh
   make menuconfig
   make V=1
   

Note: make menuconfig to config toolchain

To switch GNU riscv64 toolchain to GNU riscv32 toolchain, the following option must be selected:

System Type  --->
    Toolchain Selection   --->
        [ ] Generic GNU RV64 toolchain
        [x] Generic GNU RV32 toolchain

Make sure HPMicro GNU riscv32 toolchain have been installed and be found in PATH.

4. Debug the nuttx with openocd and run:

   picocom -b 115200 /dev/ttyACM0
   

When using fireDAP, command as follows. Those cfg files in the path: sdk_env/hpm_sdk/boards/openocd:

$ openocd -f probes/cmsis_dap.cfg -f soc/hpm6750-single-core.cfg -f boards/hpm6750evk2.cfg

$ riscv32-unknown-elf-gdb ./nuttx
(gdb) target extended-remote [ip_addr]:3333
(gdb) load
(gdb) c