Designing Embedded Communications Software

Chapter 2: Software Considerations in Communications Systems

Listing 2.1: Streams message and data block structures.

Chapter 3: Software Partitioning

Listing 3.1: Perform demultiplexing.

Listing 3.2: Main task loop.

Listing 3.3: Event processing in the main loop.

Chapter 4: Protocol Software

Listing 4.1: A simple state machine implementation via a switch-case construct.

Listing 4.2: Logic for an access function.

Listing 4.3: Logic for an access function with a predicate.

Listing 4.4: Main loop for a typical communications task with state machines.

Chapter 5: Tables and Other Data Structures

Listing 5.1: Management information base.

Listing 5.2: Protocol control block and related blocks for IP.

Chapter 6: Buffer and Timer Management

Listing 6.1: Message control block.

Listing 6.2: Data control block.

Listing 6.3: RTOS notification routine.

Listing 6.4: Timer block.

Listing 6.5: Process the timer event.

Listing 6.6: Create a new timer.

Chapter 7: Management Software

Listing 7.1: Statistics block.

Listing 7.2: A Test routine with a switch statement.

Chapter 8: Multi-Board Communications Software Design

Listing 8.1: The IPS approach to accessing variables.

Chapter 9: Going About the Development

Listiing 9.1: COTS board include file.