Local Roadmap for Communications Engineering I

The course is organised as a series of modules.

Within each module all VIDEOS are local, and served at constant rate from the research server, see:

Associated videos at Standard Definition (click on [SD] in column 2);
The same video at High Definition, 720 (click on the title in column 2);
Other resources - such as videos available on the web and pages that accompany the modules (in column 3).

If you are unable to stream at High Defintion, then click on the SD format videos instead. These will download over lower speed Internet paths and are more suitable for viewing on a phone or other small screen.

1	Asynchronous Serial Communications	A History of Computing and Microcontrollers Serial Communications Multiplexing Simplex, Half-Duplex, and Full Duplex Transmission Three methods of communication: Unicast Broadcast and Multicast
1.1	Asynchronous Character Transmission	Asynchronous Tranmission Transmission Signals LSB Transmission Order (See p72 of DMX512 Recommendations) Unbalanced Transmission The ASCII Character Set
1.2	The UART	The Universal Asynchronous Receiver/Transmitter (UART)
1.3	EIA-232 [SD] Demonstration of EIA-432 (a 10V version of 232)
	Lab A: The EIA-232 Interface [SD] Scope Probes [SD] Scope Timebases [SD] Scope Autoscale	Tutorial 1: EIA-232 Interface
2.0	Communications Links
2.1	Asynchonous Frames	Integrity Checks Parity Checksums
	NMEA GPS Frames	Interface to Global Positioning System (GPS) GPS NMEA Physical Interface GPS NMEA Link: GPS Sentences Longitudinal Parity
	Lab B: NMEA Sentences	Tutorial 2: Communications Links
3.0	EIA-485	See p68-69 of DMX512 Recommendations
3.1	[SD] Differential Trsmission	Balanced Transmission
3.2	[SD] EIA-485 Cable Bus	Line Drivers Driver Slew Rate
	Lab C: EIA-485 Interface [SD] Scope Probes [SD] Scope Timebases [SD] Scope Autoscale	Tutorial 3: EIA-485
4.0	DMX 512 [SD] DMX Guidelines	A History of DMX Multi-point Bus DMX Guidelines
4.1	[SD] DMX 512 Overview	The Digital Multiplex (DMX) Standard
4.2	[SD] DMX Bus Termination [SD] Demo of Bus Termination	Termination See p22 of DMX512 Recommendations DMX 512 Terminator - YouTube
4.3	[SD] Bus Transceivers	DMX Physical Layer & Cable Data sheet for DS75176B-Transceiver EIA/RS 485 Notes The EIS/RS485 Design Guide - Texas Instruments
		Tutorial 4: Cable Bus
5.0	Tutorial 5: Frames [SD] Demo Connecting DMX 512
5.1	[SD] Frames Start; Break; MAB [SD] Demo of Start of Frame [SD] Measurement of Frame Rate	DMX Frames and Frame Synchronisation DMX Break, and MAB (See p68-69 of DMX512 Recommendations)
5.2	[SD] Addressing and the Base Address	Receiver Base Address Base Address Configuration See p54-56, P84ff of DMX512 Recommendations
5.3	[SD] DMX Receiver Hardware	Digital Control using a MicroController Grounding (See p33ff of DMX512 Recommendations)
		Tutorial 5: Frames
5.4	[SD] DMX Receiver Software	Implementation of DMX Receivers Milford Instruments Receiver Board Application Note
5.5	[SD] Digital Control	Interpretation of DMX Slot Values DMX Output Stepper Motor Control
	Lab D: DMX Frame Transmission Scope Decoding	Tutorial 6: : DMX Receiver Software
6.0	DMX 512 Control
6.1	[SD] Controlling Power [SD] The Variac [SD] TRIAC Power Control (Lab F) [SD] TRIAC Power Switching [SD] A Domestic Dimmer	Power Control Crydom Solid State Relays Application Note [SD] The PAR-64
6.2	[SD] Controller System Architecture
6.3	[SD] Using Multiple Slots	DMX Output
6.4	[SD] LEDs and Colour	A remarkable robotic LED light: The Clay A.Leda Paky Bee Eye Fun Promotion Video and Full Product Video
6.5	[SD] Start Codes	Receiver Errors DMX Start Codes
	Lab E: DMX Control	Tutorial 7: Control
7.0	Control Networks
7.1	[SD] Repeaters	Multi-Point Bus, and Repeaters
7.2	[SD] DMX Over Ethernet	See p49ff of DMX512 Recommendations
	Lab F: TRIAC Control
	Lab G: TDM Output via DMX
	Lab H: Stepper Motor Control (Optional)
8.0	RDM Control	The Remote Device Management (RDM) Standard
8.1	RDM Physical Layer	RDM Physical Layer: Bias, and Termination See p22ff of DMX512 Recommendations
	Link Layer	Slides only, no recording in 2021. RDM Link Layer: Half-Duplex UIDs, and Discovery
	Controlling Devices via RDM	Slides only, no recording in 2021. Controlling devices via RDM
		Tutorial 8: Remote Device Managment
9.0	CAN Bus	The Controller Area Network (CAN) P rotocols based on CAN Introduction to CAN - TI
9.1	CAN Physical Layer	Synchronous Transmission CAN Waveform Bit Stuffing
9.2	CAN Arbitration	Bus access and arbitration
		Cyclic Redundancy Checks (CRCs)
		Tutorial 9: CAN
	Revision Class	Tutorial 10: Revision Tutorial

When using a phone or low-speed Internet, click on [SD] to receive smaller videos.

Other Resources

Course Index Page
Copies of the Course slides x4 in PDF
Recommended Practice for DMX512, 2nd Edition incorporating USITT DMX512-A and Remote Device Management - RDM", 2012 (ISBN 9780955703522, available for free PDF download from ETP.)
Other Resources

Lab Resources

No.	Course Video Resources	Other Resources
0	Introduction	Course Laboratory Handbook
0.1	[SD] Scopes [SD] Scope Probes [SD] Scope Timebases [SD] Scope Autoscale [SD] Scope Zoom [SD] Scope Current Probes [SD] Scope Web Access	Short Videos: The Keysight Oscillocope Survival Guide The 2 Minute Guru - Scope Triggering The 2 Minute Guru - Single/Run/Stop Button The 2 Minute Guru - Scope Decoding The Extended Cut - Scope Decoding

Prof. Gorry Fairhurst, School of Engineering, University of Aberdeen, Scotland. 2021