@Siddhanth I guess I don't understand what you are trying to accomplish. SITL runs on the host computer. HITL runs on the VOXL. If you have a MAVROS application running on VOXL and you want to test it against PX4 you can use HITL. Or you could run your MAVROS application on the host computer and test it against SITL.
@SMRazaRizvi At first glance, it looks like that GPS uses CAN to communicate. There is not a supported CAN interface on VOXL 2. You will need to use an Arduino or something in the middle to translate CAN protocol to something VOXL 2 can interface with
@Jw0719 hi, we're not familiar with that specific capability. Flight Core v2 is fairly stock PX4 though, so if PX4 supports it Flight Core should support it