if [ ! -f "sd.bin" ]; then
dd if=/dev/zero of=sd.bin bs=64M count=1
fi

qemu-system-arm -M vexpress-a9 -kernel rtthread.elf -nographic -sd sd.bin


if [ ! -f "sd.bin" ]; then
dd if=/dev/zero of=sd.bin bs=64M count=1
fi

qemu-system-arm -M vexpress-a9 -kernel rtthread.elf -nographic -sd sd.bin -net nic -net tap


Add network nic command in Linux for vexpress-a9 bsp
[BSP] Add network nic command in Linux for vexpress-a9 bsp
