C

Bootloader flashing instructions for Nuvoton boards

The flashing instructions on this page are based on IAR I-jet debugger over 20-pin JTAG connector.

Gerda-4L

Connect the board to the host PC using an IAR I-jet debugger hardware and a 20-pin JTAG connector.

Create an empty flash_bootloader.bat file and add the following contents to it:

set QUL_ROOT=C:\Qt\QtMCUs\3.0.0
set IAR_TOOLCHAIN_DIR="C:\Program Files (x86)\IAR Systems\Embedded Workbench 9.2"

"%IAR_TOOLCHAIN_DIR%/common/bin/cspybat" "%IAR_TOOLCHAIN_DIR%/arm/bin/armproc.dll" "%IAR_TOOLCHAIN_DIR%/arm/bin/armJET.dll" ^
--plugin %IAR_TOOLCHAIN_DIR%/arm/bin/armbat.dll ^
--device_macro %IAR_TOOLCHAIN_DIR%/arm/config/debugger/Nuvoton/KM2KSD4XXX(Gerda-4L).dmac ^
--macro "%QUL_ROOT%/platform/boards/nuvoton/gerda-4l-uitron/cmake/flasher/device_gerda-4l.mac" ^
--flash_loader "%IAR_TOOLCHAIN_DIR%/arm/config/flashloader/Nuvoton/Gerda-4L.board" ^
--debug_file=%QUL_ROOT%\bin\bootloaders\nuvoton\gerda-4l-uitron_bootloader.elf ^
--download-only ^
--leave_target_running ^
--backend ^
--endian=little ^
--cpu=Cortex-M7 ^
--drv_vector_table_base=0x0 ^
--fpu=VFPv5_D16 ^
-p %IAR_TOOLCHAIN_DIR%/arm/config/debugger/Nuvoton/KM2KSD4XXX(Gerda-4L).ddf ^
--drv_verify_download ^
--semihosting ^
--device=KM2KSD4XXX(Gerda-4L) ^
--multicore_nr_of_cores=1 ^
--jet_standard_reset=9,0,0 ^
--reset_style=\"0,-,0,Disabled__no_reset_\" ^
--reset_style=\"1,-,0,Software\" ^
--reset_style=\"2,-,0,Hardware\" ^
--reset_style=\"3,-,0,Core\" ^
--reset_style=\"4,-,0,System\" ^
--reset_style=\"9,ConnectUnderReset,1,Connect_during_reset\" ^
--drv_catch_exceptions=0xff0 ^
--jet_board_cfg=%IAR_TOOLCHAIN_DIR%/arm/config/debugger/Nuvoton/KM2KSD4XXX(Gerda-4L).ProbeConfig ^
--drv_trace_settings=None ^
--drv_trace_size=25 ^
--board_file=%IAR_TOOLCHAIN_DIR%/arm/config/flashloader/Nuvoton/Gerda-4L.board

Edit the paths QUL_ROOT and IAR_TOOLCHAIN_DIR.
Open command prompt and run the flash_bootloader.bat script as shown below:
```
flash_bootloader.bat
```

Gerda-4UL

Connect the board to the host PC using an IAR I-jet debugger hardware and a 20-pin JTAG connector.

Create an empty flash_bootloader.bat file and add the following contents to it:

set QUL_ROOT=C:\Qt\QtMCUs\3.0.0
set IAR_TOOLCHAIN_DIR="C:\Program Files (x86)\IAR Systems\Embedded Workbench 9.2"

"%IAR_TOOLCHAIN_DIR%/common/bin/cspybat" "%IAR_TOOLCHAIN_DIR%/arm/bin/armproc.dll" "%IAR_TOOLCHAIN_DIR%/arm/bin/armJET.dll" ^
--plugin %IAR_TOOLCHAIN_DIR%/arm/bin/armbat.dll ^
--device_macro "%IAR_TOOLCHAIN_DIR%/arm/config/debugger/Nuvoton/KM2KSZ2XXX(Gerda-4UL).dmac" ^
--macro "%QUL_ROOT%/platform/boards/nuvoton/gerda-4ul-utkernel/cmake/flasher/device_gerda-4ul.mac" ^
--flash_loader "%IAR_TOOLCHAIN_DIR%/arm/config/flashloader/Nuvoton/Gerda-4UL.board" ^
--debug_file=%QUL_ROOT%\bin\bootloaders\nuvoton\gerda-4ul-utkernel_bootloader.elf ^
--download-only ^
--leave_target_running ^
--backend ^
--endian=little ^
--cpu=Cortex-M33 ^
--drv_vector_table_base=0x0 ^
--fpu=VFPv5_sp ^
-p ^
%IAR_TOOLCHAIN_DIR%/arm/config/debugger/Nuvoton/KM2KSZ2XXX(Gerda-4UL).ddf ^
--drv_verify_download ^
--semihosting ^
--device=KM2KSZ2XXX(Gerda-4UL) ^
--multicore_nr_of_cores=1 ^
--jet_standard_reset=9,0,0 ^
--reset_style=\"0,-,0,Disabled__no_reset_\" ^
--reset_style=\"1,-,0,Software\" ^
--reset_style=\"2,-,0,Hardware\" ^
--reset_style=\"3,-,0,Core\" ^
--reset_style=\"4,-,0,System\" ^
--reset_style=\"9,ConnectUnderReset,1,Connect_during_reset\" ^
--jet_power_from_probe=leave_on ^
--drv_trace_settings=None ^
--drv_trace_size=25 ^
--board_file=%IAR_TOOLCHAIN_DIR%/arm/config/flashloader/Nuvoton/Gerda-4UL.board ^
--drv_interface=SWD ^
--drv_interface_speed=8000

Edit the paths QUL_ROOT and IAR_TOOLCHAIN_DIR.
Open command prompt and run the flash_bootloader.bat script as shown below:
```
flash_bootloader.bat
```

Available under certain Qt licenses.
Find out more.