Basic Protocols
===============

Basic access is intended for using the operating-system CAN/CAN FD interface directly or sending unwrapped serial data to an RS485 device.

- To control CAN or CAN FD devices through Linux ``canX``, see :doc:`socketcan`.
- To send raw RS485 data without a SANPO wrapper, see :doc:`rs485_passthrough`. Leave at least 3 ms of idle time after each command. For continuous high-rate real-time control, use the SANPO wrapped protocol.
- To select a channel through a USB frame or connect from an SPI host, see :doc:`extended_protocol`.

.. toctree::
   :maxdepth: 1

   socketcan
   rs485_passthrough