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1、MIT 6.111: Introductory Digital Systems Laboratory, Fall 2005 Final project reportA Volumetric 3D LED displayDavid Wyatt wyattmit.eduLawrence Wujanto lwujantomit.eduAbstractA 3D volumetric LED display was designed and built, along with a number of accompanying applications. The display consisted of
2、a cube of 512 individually controllable ultra-bright LEDs hand-soldered into a lattice, and was intended to demonstrate some of the capabilities that a true 3D display have over 2D representations of 3D objects. In addition, a renderer was built which concurrently displays an orthographic representa
3、tion of the cube on an SVGA display.Applications built include 3D Pong, 2D and 3D versions of Cellular Automata, a music visualizer, and a “trip-let” displaying the letters MIT. Different applications can be activated by means of a switch. They incorporate various peripherals, including as mouse con
4、trol and audio input with CIC filtering.The project was implemented in the hardware description language Verilog, compiled and downloaded to a Xilinx FPGA chip. Conclusions arising from this aspect of the design process, and from the rest of the project, are presented at the end of the report.Table
5、of Contents Abstract. i List of Figures. iii 1 Overview. 1 1.1 Background. 1 1.2 Chosen system configuration. 1 2 Technical description. 4 2.1 Data generation subsystem.4 2.1.i Application Reset.4 2.1.ii 3D Pong.4 2.1.iii 2D Cellular Automata. 4 2.1.iv 3D Cellular Automata. 5 2.1.v “MIT” trip-let. 7 2.1.vi Music visualiser. 7 2.2 Display subsystem. 9 2.2.i Voxel addressing.9 2.2.ii Data output module.9 2.2.iii Renderer. 9 2.2.iv Screen buffer wrapper.10 2.2.v Wireframe generator. 11 2.2.vi SVGA interface module.
