Summer 1999 Digital Signal Processor Seminar

Department of Electrical and Computer Engineering
The University of Texas at Austin, Austin, TX 78712

bevans@ece.utexas.edu
http://www.ece.utexas.edu/~bevans

Schedule

Web resources described on the slides for each seminar are linked under the respective seminar.

June 15th Introduction to Digital Signal Processors (DSPs): PowerPoint - HTML - PDF
conventional DSPs, very-long instruction word (VLIW) DSPs (Texas Instruments TMS320C6x family), DSP extensions on general-purpose processors (Pentium MMX), use of DSPs in signal and image processing products
- Benchmarks by Berkeley Design Technology Inc.
- Pocket Guide to DSP Processors by Berkeley Design Technology Inc.
June 22nd Introduction to the TMS320C6x VLIW DSP: PowerPoint - HTML - PDF
instruction set architecture, pipelining, comparison with other processors, and implementing vector dot products in assembly language
- Notes of Texas Instruments Processors
June 29th Signal Processing on the TMS320C6x VLIW DSP: PowerPoint - HTML - PDF
implementing FIR filters, discrete cosine transforms, and lookup tables in assembly language; programming hints; C compiler optimizations; and benchmarking of C compiler efficiency
- ANSI C version of discrete cosine transform used in benchmarking
- C6x functions in assembly language from Texas Instruments
  - TI C6x benchmarks: arithmetic, filters, matrix math, FFT, search, DCT, Viterbi decoders
  - C6x code from the DSP Hotline: arithmetic, correlation, DCT, filters, adaptive filters, FFT, Viterbi decoder
July 6th Image Processing on the TMS320C6x VLIW DSP: PowerPoint - HTML - PDF
implementing 2-D FIR filters, JPEG codec benchmarking, and development tools (C compiler, assembler, simulator debugger) and boards
- 2-D FIR Implementations on the C6x: fir2d1.asm - fir2d2.asm - fir2d3.asm
- Benchmarking on the C6x by R. Sankaralingam, W. Schwartzkopf, and M. Valliappan (UT Austin)
  - report on benchmarking kernels and JPEG codec: JPEG codec takes 761,000 cycles for a 64 x 64 image (about 185 cycles per pixel)
  - source code for kernel benchmarks (mostly from the Texas Instruments Web site)
- Spectrum Signal Processing Daytona C6x Board
July 13th Image Processing on the TMS320C8x Multiprocessor DSP: PowerPoint - HTML - PDF
instruction set architecture, multithreading, tools (C compiler, assembler, debugger, and boards), and image processing libraries [speaker is Mr. Niranjan Damera-Venkata]
July 16th Modern Methods and Tools for Signal Processing System Design: PDF
algorithm development environments, system-level design environments, formal modeling of computation and communication, dataflow modeling, software and hardware synthesis, modern electronic design automation tools
- Imperative algorithm development environments
  - Matlab by The Mathworks
  - Interactive Data Language by Research Systems
- Graphical algorithm development environments
  - Simulink by The Mathworks
  - Envi by Research Systems
  - Labview by National Instruments
  - Khoros by Khoral Research
- System-level design environments
  - Ptolemy by UC Berkeley
  - Advanced Design System by HP EEsof
July 20th Signal and Image Processing on the TMS320C54 DSP: PowerPoint - HTML - PDF
instruction set architecture, vector dot product, pipelining, acceleration of FIR filtering and polynomial evaluation, C compiler, development tools and boards, image processing libraries
- Assembly language examples
  - Block FIR filtering: blockFIR.asm
  - Block FIR filtering acceleration: symmetricFIR.asm
  - Polynomial evaluation acceleration: poly.asm
- Hyperception
  - Hypersignal RIDE for 1-D, multirate, and m-D signal processing systems; simulation, real-time display/debugging, and C code generation; image processing library
  - OOVRL Graphical DSP Graphical Compiler for generating DSP assembly language code from block diagrams
  - ImageDSP for real-time imaging
- Information from Texas Instruments
  - C54x application notes
  - C54x DSP Function Library: FFTs, filters, adaptive filters, correlation, math, trigonometric functions, matrix multiplication (C callable assembly language routines)
  - Translation Assistant Program 5000 helps in migrating TMS320C5x assembly code to the TMS320C54x
July 27th Raster Image Processing on the TMS320C6x VLIW DSP: PowerPoint - HTML - PDF
implementing color conversion, 2-D interpolation, and halftoning on the TMS320C6x, and tips for writing C/C++ code
- Code Examples
  - Ordered dithering on the C6x: 0.5 pixels/cycle - 0.8 pixels/cycle
  - C function example: non-robust, hard-to-maintain - robust, easier-to-maintain
  - robust function to read a string from a file
  - C++ class example: with memory leaks - without memory leaks
- Color Conversion
  - Color Spaces FAQ
  - Color Imaging FAQ
- Texas Instruments
- Tips for writing C/C++ code
  - Software development

Biography

Brian L. Evans is an Assistant Professor in the Department of Electrical and Computer Engineering at The University of Texas at Austin, and the Director of the Embedded Signal Processing Laboratory, which is part of the Center for Vision and Image Sciences. His research interests include real-time embedded systems; signal, image and video processing systems; and system-level design. He developed and currently teaches EE381K Multidimensional Digital Signal Processing, EE382C Embedded Software Systems, and EE379K Real-Time Digital Signal Processing Laboratory. His B.S.E.E.C.S. (1987) degree is from the Rose-Hulman Institute of Technology, and his M.S.E.E. (1988) and Ph.D.E.E. (1993) degrees are from the Georgia Institute of Technology. From 1993 to 1996, he was a post-doctoral researcher at the University of California at Berkeley with the Ptolemy project. Ptolemy is a research project and software environment focused on design methodology for signal processing, communications, and controls systems. He is the primary author of Wolfram Research's Signals and Systems Pack for Mathematica. He is an Associate Editor of the IEEE Transactions on Image Processing, a member of the Design and Implementation of Signal Processing Systems Technical Committee of the IEEE Signal Processing Society, and a Senior Member of the IEEE. He is a recipient of a 1997 National Science Foundation CAREER Award.

Last updated 08/24/99. Mail comments about this page to bevans@ece.utexas.edu.