New Breadboard 8088 PC V2 #8 PC Compatibility, POST Port and Speaker

The eighth in a new a series of videos to create a retro Intel 8088/8086 PC on solderless breadboards and learn about how computer hardware and software works. I'll be using new Intersil 80C88 series chips and modern components where possible. In this video I look at what is required to make a micro PC compatible and we will add the Power On Self Test Port (POST) and Speaker for BIOS beep codes.

IBM Technical Reference Guide PC-XT https://www.pcjs.org/machines/pcx86/i...
ISA POST Cards https://minuszerodegrees.net/misc/pos...
Sergey Kiselev XI-8088 PC and BIOS
https://github.com/skiselev/8088_bios
https://github.com/skiselev/xi_8088

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Chapters
0:00 Introduction
1:35 Breadboard PC V2 - PC-XT Hybrid
2:44 Power On self Test Ports and Cards
4:07 Block Diagram
5:24 What makes a micro IBM PC compatible?
7:26 PC-XT Technical Reference Guide review
17:49 KiCad schematic
20:17 PLD Rules for ATF22V10C and ATF750C
29:12 Breadboard layout and wire up
35:29 Test program
37:03 Test speaker with signal generator
37:58 Troubleshooting!
38:40 Run POST and Beep Test with Logic Analyzer
41:32 POST Test results
42:26 Summary and Next Video