Building a Modular 6502 Computer | Ben Eater Inspired: CPU Board Design Review (Phase 3) скачать в хорошем качестве

Building a Modular 6502 Computer | Ben Eater Inspired: CPU Board Design Review (Phase 3)

In this 6502 microprocessor project, I'm building a complete homebrew computer system inspired by Ben Eater's 6502 build - but with major upgrades. Learn about CPU board design, modular architecture, CPLD programming, and the engineering decisions behind creating a flexible retro computer system with modern debugging capabilities. This project is based on Ben Eater's original 6502 design and transforms it into a fully modular system with 512K ROM, 14MHz operation, and advanced debugging features. This video is a detailed review of the CPU board and all the support systems. 🔧 What You'll Learn: Design philosophy: Why modular beats monolithic Upgrading from 32K to 512K EEPROM with page registers CPLD (Complex Programmable Logic Device) implementation In-circuit programming without removing chips AVR microcontroller integration for smart buffering Planning for 12 expansion modules plus Z80 interface Real engineering trade-offs and decision-making process ⚡ Project Specifications: CPU: WDC 65C02 running at 1-14MHz RAM: 32K SRAM (Cypress CY6256N-55) ROM: 512K EEPROM (SST39SF040) with 16-page register Control Logic: Atmel ATF1502AS CPLD Smart Buffers: AVR64DD32 microcontrollers 12 expansion ports for modular peripherals Advanced debugging with LCD displays and LEDs JTAG-like functionality for step-through debugging 📍 Video Chapters: 0:00:00 Start 0:00:08 Schematic Review 0:00:35 CPLD - Complex Programmable Logic Device 0:01:23 CPLD - Standard Mode 0:02:11 Memory Map 0:02:46 Peripheral Interface Controller 0:03:43 CPLD - Programming Mode 0:04:32 CPLD - JLink Mode 0:05:59 CPLD - Address Resolution 0:07:28 CPLD - Configuration 0:08:24 CPLD - Summary 0:08:48 Power On Reset 0:11:00 Design Tips 0:12:24 Programming and Debugging the AVR 0:13:19 LED Indicators 0:15:34 Expansion Bus 0:17:05 Peripheral Select Controller 0:18:02 IRQ - Interrupt Support 0:18:42 Power Supply 0:20:14 Oscillator Section (Many options) 0:22:45 28 Mhz to 14 Mhz Conversion 0:25:17 Programmer Interface 0:25:55 Logic Analyzer Interface 0:26:47 Z80 DMA Interface 🎯 Who This Series Is For: Retro computing enthusiasts Electronics engineers wanting to understand computer architecture Ben Eater fans ready for the next challenge Makers interested in modular hardware design Anyone who wants to understand how computers REALLY work 💡 My Teaching Philosophy: I document failures as much as successes. My 48 years in technology have taught me that troubleshooting and debugging are the real skills worth learning. You'll see mistakes, corrections, and the thought process behind every decision. 🔗 Related Projects: This is Part 1 of my 6502 Project Series. Future videos will cover: Detailed schematic reviews CPLD programming and logic design PCB layout and assembly Hardware testing and validation Module development (serial, digital I/O, keyboard) Integration with Z80 computer 📚 Tools & Software I Use: Altium Designer for PCB design (free alternatives mentioned) AVR64DD32 microcontrollers Logic analyzers for debugging Agilent/Tektronix oscilloscopes 🛠️ Background: I started ABS Data Systems in the late 1970s after learning Intel 8080 assembly on a HeathKit H8. I've spent nearly five decades in custom software development, working in everything from assembly to C++ and C#. Now retired, I'm returning to hardware projects and sharing everything I've learned. Ben Eater's Original 6502 Series:    / @beneater   Github Link to project files: https://github.com/TerryAbs/ABSDataSystems 💬 Join the Discussion: What features would YOU add to a homebrew computer? Drop your ideas in the comments - I read and respond to every one! 🔔 Subscribe for the complete series as I take this from concept to working computer. New videos cover PCB design, assembly, programming, testing, and inevitable troubleshooting.