MX Foundation 4
Sending Messages

MX Foundation provides three modes of transmission to send ARINC 708 bytes on a given channel:

  • Aperiodic Transmission is used to send a buffer of ARINC 708 bytes. The ARINC 708 bytes are sent to one of three priority queues. The precise timing when each ARINC 708 word transmission occurs can be defined using the time tag fields.
  • Periodic Transmission is used to send ARINC 708 messages on a given channel with a specified update rate. The device scheduler performs the repetitive transmission. The buffer contents can be periodically updated by the host application. The ARINC 708 words are sent to the normal priority queue.

Error Injection can also be used to inject errors in transmission.

The channel must be configured as explained in the next section.


Configuring the channel

Before any transmission or reception takes place, the channels should be configured explicitly by setting the appropriates attributes. The transmission channels attributes should always match the reception channel attributes.

Updated 10/23/2023