source [find interface/jlink.cfg]
transport select jtag
adapter speed 4000
set _CHIPNAME fe310g000
jtag newtap $_CHIPNAME cpu -irlen 5 -expected-id 0x10e31913

set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME riscv -chain-position $_TARGETNAME

$_TARGETNAME configure -work-area-phys 0x80000000 -work-area-size 10000 -work-area-backup 1

flash bank onboard_spi_flash fespi 0x20000000 0 0 0 $_TARGETNAME

init

jlink jtag 3
halt
flash protect 0 64 last off