Using the TI LaunchPad from your KoP

[ayeckley]

Is there a recommended approach for using the LaunchPad to interface with a quadrature encoder? We're trying to replicate the capability that the Cypress PSoC offered in previous years via the Enhanced I/O interface on the Driver Station, but we're still pretty low on the learning curve re: how we could use the HID protocol (is that even the right terminology?) to duplicate or at least mimic it.

Ideally we'd like to pass the [signed, 16 bit] tick count from the encoder to the roboRIO and do all related processing there. We're a LabVIEW team.

Edit: OK, I've spent a few hours rolling around in the source code and I think I've found an approach that will work. It looks likes the struct for the button data could be modified so that 16 bits could still be used for button status and the remaining 16 bits can be used for the encoder data. HID appears to offer 8x16bits for "user data" as well, but its not clear if the DS forwards that to the roboRIO or not so that won't be our primary approach. If we get it working then I'll provide an update.