You can upload files to the V6Z80P.
To do so, you should call Upload() function, in your project SConscript file. (See for example src/test0/SConscript)
Thus, if you will add one or more calls to Upload() function, you can build and upload your project with this command (assume project name is test0)

or you can just build

To upload files to V6Z80P, sendv6 utility is used.