EE 443 Lab 2

Problem 1

Status: Complete

Complete:

• Generates echo effect (using textbook code Ch. 10.5.1--see CD/code/chapter_10/ccs/Echo/ISRs_[A/B/C].c)

Incomplete:

• N/A

Problem 2

Status: Complete

Complete:

• Flips input data set
• Tested with [0:1:511] (or range(0,512,1)) input -> [511: -1 :0] (or range(511,-1,-1)) output

Incomplete:

• N/A

Problem 3

Status: Complete

Complete:

• Functioning autocorrelation assembly code that computes using the algorithm: For each correlation coefficient k, sum the product of the input function x(n) and it shifted by k x(n+k) for n between [0,N-k], where N is the number of samples of x(n).
• Multiplication seems to be correct when compared to Scilab correlation: --> x = [0:9]; y = xcorr(x, x, 5); y = y(1:5)
• Seems to work with MPYSP and ADDSP since working with floats

Incomplete:

• N/A

Problem 4

Status: Complete

Complete:

• Pitch Shifter (entire problem)

Incomplete:

• N/A

Textbook

• 2nd ed.

Helpful Links

• float <-> hex converter
• TI C6x Assembly Programming Guide