"--endian=little" 

"--cpu=Cortex-M4" 

"--fpu=None" 

"-p" 

"C:\Program Files\IAR Systems\Embedded Workbench 9.2\arm\config\debugger\GigaDevice\GD32F450xE.ddf" 

"--semihosting" 

"--device=GD32F450xE" 

"--drv_communication=USB0" 

"--drv_interface_speed=auto" 

"--jlink_initial_speed=32" 

"--jlink_reset_strategy=0,0" 

"--drv_interface=SWD" 

"--drv_catch_exceptions=0x000" 

"--drv_swo_clock_setup=72000000,0,2000000"