IA3 MIL-STD 1553B

This course covers the 1553 military bus


Objectives
	The bus topology is explained.
	Bus frames are studied field per field.
	The architecture of a 1553 coupler is described.
	The course focuses on testing, covering also MIL-HDBK-1553A.
	The course details the software interface necessary to control the coupler.
	This course has been delivered several times to companies developing defense/avionics equipments.
A more detailed course description is available on request at info@ac6-training.com


Prerequisites
	Basic knowledge of a processor or DSP.

Plan


INTRODUCTION
	History
	Utilization domain
	Objectives of this bus
	Protocol overview
	The 3 node types: BC, RT and BM
	Multiplex selection criteria
PHYSICAL LAYER
	Introduction to differential transmission
	1553B transmission medium
	Stubbing
	Connecting a terminal to a backbone, long stub
	Connection a terminal to a backbone, short stub
	Multi-stub couplers
	Terminal electrical characteristics
LINK LAYER
	Terminal operation
	Manchester bi-phase coding scheme
	Word formats, SYNC pattern
	Word validation
	Command word detail
	Data word detail
	Status word detail, studying various sequences in order to explain Status flags
	Terminal architecture, word controller, message controller, frame controller
MESSAGE FORMATS
	Remote Terminal operation, assigning an address
	The 10 message types
	Point-to-point messages
	Broadcast messages
	Studying various sequences explaining the way of transferring data from terminal to terminal
	Message timings, taking into account the round-trip delay
	Illegal commands vs invalid commands


MODE CODES
	Management messages
	Command format, subaddress specific usage
	Mode codes supporting data
	Dynamic bus control
	Synchronize commands, usage to implement a heardbeat
	Transmit Status word and Transmit Last command use cases
	Interface with self tests in both RT and subsystems
	Transmitter shutdown commands used in redundant systems
SYSTEM ISSUES
	Using subaddress
	Double buffering
	Framing in the BC to support both periodic transfers and asynchronous transfers
REDUNDANT DATA BUS REQUIREMENTS
	Electrical isolation
	Dual standby redundant data bus operation
	Superseding commands
	High reliability requirements
TESTING
	Test plans described in 1553A handbook
	Using an analyzer to capture traffic
	Generating traffic to check how the system react in case of errors
	Data wrap around mechanism, remote loopback test

Durée	Prix	Calendrier
2 jours	1250 €