First some annotiations:
- You need a free CAN slot. If you do not have one, you can extend it with DJI CAN hub - but this is just an expansive box which is connecting the wires :-) So in theory you can also cut the cables and solder it.
- You need the DJI 2,4GHz datalink: This is a sender and a receiver.
- If you want to use it with your iPad you also need the DJI BTU (Bluetooth Unit)
- Make sure that your iPad supports BT 4.0. I think this is the case for iPad 3 and up. On iPad you can not install the groundstation app.
- The Groundstation for PC is only available on CD which is shipped inside the package. It looks like it is downloading the latest version from internet somehow.
- There are different versions of the datalink module with different certificates (FCC, CE) and different transmit power
Plugging it to a newer windows version you can see, that it uses operating system included CDC serial drivers. Unfortunately the CDC drivers are not available on Windows XP (or can not be accessed automatically), but you can trick it a bit.
Microchip has an example for that. Unfortunately this is in an executable file. So download the alternative drivers from e.g. obddiag.net and unzip them to a folder. Edit the mchpcdc.inf and look for the lines where it is written %DESCRIPTION%=DriverInstall, USB\VID_????&PID_????. Change both the lines to %DESCRIPTION%=DriverInstall, USB\VID_FFF0&PID_0008. After that go to the device manager and reinstall by using the custom folder where you just edited the .inf file.
Remember the port and set it in the groundstation.