Raspberry Pi Pico Lecture 4: Direct Digital Synthesis
0:00 - Administrivia and reviewing context
1:42 - Lecture goals and DDS introduction
3:55 - What is a sine wave?
4:30 - Creating a new unit for angle
8:10 - Overview of the DDS algorithm
12:00 - Deriving the equation for accumulator increment value
18:00 - Examples with numbers
19:25 - Resolution of the synthesizer
22:00 - How big should the sine table be?
29:00 - Indexing into the sine table
33:15 - Some common questions
35:20 - Looking at DDS in code
39:35 - Cricket chirps
41:55 - Summary of DDS
42:50 - Applications of DDS
49:05 - Plan for the next couple days
Fall, 2022 lectures from ECE 4760 (Digital Systems Design Using Microcontroller) at Cornell University.
Course site:
Hunter’s site:
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