Hey @hitheshkaranth,
My suggestion would be to dig into some sample code and documentation. I’ve prepared a tiny list that should get you going.
- http://legato.io/legato-docs/latest/buildAppsConcepts.html (Legato architecture and concepts – read this carefully)
- http://legato.io/legato-docs/latest/c_gnss.html (navigation service API)
- http://legato.io/legato-docs/latest/le__tty_8h.html (Legato serial connection API for UART)
- https://github.com/mangOH/RedSensorToCloud/ (Sample app that implements some GPS stuff)
- Need Information On UART (Some info on configuring the UART)