Visualizing Data with 7-Segment Displays
Displaying numbers is trickier than I expected! In this video we explore how to visualize the data inside of our simulated 4-bit registers, with the help of the double dabble algorithm and some seven segment displays.
Series playlist: • Exploring How Computers Work
Simulation tool (work in progress): https://sebastian.itch.io/digital-log...
Source code: https://github.com/SebLague/Digital-L...
Support the channel: / sebastianlague
Correction for a mistake in my boolean algebra explanation: • Boolean Algebra Correction
Resources and Inspiration:
https://en.wikipedia.org/wiki/Double_...
https://electronics.stackexchange.com...
https://pdf1.alldatasheet.com/datashe...
Music:
https://github.com/SebLague/Misc-Proj...
Chapters
0:00 Intro
0:49 Two’s Complement Refresher
1:34 Seven-Segment Display + Truth Table
2:58 Boolean Algebra Basics
5:43 Simplifying the Equation
6:48 Converting Algebra to Logic Gates
8:33 Computer-Assisted Design
11:25 Testing the Digit Display Design
12:36 A Real-World Version (the 74LS248)
14:20 Visualizing the Data in a 4-bit Register
15:14 All Ten Digits
17:22 Binary Coded Decimal
19:49 The Double Dabble Algorithm
22:58 Dabbling with Logic Gates
24:05 Implementing Double Dabble
26:39 Displaying an 8-bit Number
27:18 Ripple Blanking
29:32 Displaying Negative Numbers
32:34 Testing the Final Design
33:50 Outro
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