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	DACS: Serial Communications Protocol
	Serial Communications Protocol To facilitate communication between the embedded microcontrollers and the host PC, a serial communications protocol was developed. The protocol is relatively simple in design, but effective. The protocol consists of three layers: physical, framing, and application-specific. The physical layer relates to the actual medium and means of transmission. Framing relates to encapsulation and transmission/receipt of data packets. The application-specific layer defines messages that specific applications use to communicate.	Table of Contents [Whole document in PDF 1.9MB] [more photos and information] Contents List of Figures List of Tables Executive Summary What Does the System do? Why Design and Implement this System? Project Goals Deliverables Conclusions Introduction Design Methodologies Application Analysis System Overview High-Level Hardware Specifications Control Board Mixer Unit Module-Level Hardware Specifications Control Board Mixer Unit Inter-Module Specifications Control Board Mixer Unit Digital Control Bus Hardware Schematics Control Board Mixer Unit Hardware Verification Control Board Mixer Unit Hardware PC Board Designs Control Board Mixer Unit Hardware Chassis Control Board Mixer Unit High-Level Firmware Design Control Board Mixer Unit The DACS Firmware Library Firmware Protocols Serial Communications Protocol Firmware Modules Firmware Library Control Board Mixer Unit Firmware Code Firmware Library, dacslib Control Board Mixer Unit High-Level Software Design Overall System: The Distributed Concept Functional Design Software Graphical User Interface Software Code MIDI Controller VHDL Code Control Board Mixer Unit Axiom MC68HC11 Single Board Computer References References Books Data Books and Data Sheets Web Sites About this document ...

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