EXOS 2.1 Serial/Network Driver Specification

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Contents:

1. Introduction

2. Hardware

3. Serial Device

3.1 Low­level Operation

3.2 Use of the Serial Device

3.2.1 Read an Write Instructions

3.2.2 Baud Rate Selection

3.2.3 Word Format Selection

4. Network Device

4.1 Data Transaction Protocols

4.1.1 Broadcast Protocol

4.1.2 Directed Data Protocol

4.1.3 Accepting Data Blocks

4.2 Low­level Network Operation

4.2.1 Hardware Connections

4.2.2 Obtaining Control of the Network

4.2.3 Attracting Attention - Protocol

4.2.4 Destination Machine Synchronisation

4.2.5 Sending the Data Bytes

4.2.6 Data Transmission Format

4.3 Using the Network

4.3.1 Address Determination

4.3.2 Opening Channels to the Network

4.3.3 Interrupts

4.3.4 Buffers

4.3.5 Read and Write Functions

5. Quick Reference Summary

5.1 Serial - EXOS Calls

5.2 Network - EXOS Calls

5.3 EXOS Variables

5.4 Software Interrupt Codes