John's Basement

@UCik0xMsb7kSpPUvT2JoJQ1w - 18K subscribers

Pragmatic discussions of all things related to designing, building and programming embedded systems.

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XGecu T48 EPROM Programmer Box Opening & Linux Testing

XGecu T48 EPROM Programmer Box Opening & Linux Testing John's Basement

1.2K views - 1 month ago

Testing my 1981 hand-wired S-100 Bus Z80 card.

Testing my 1981 hand-wired S-100 Bus Z80 card. John's Basement

1.3K views - 2 months ago

An Overview of the S-100 Bus

An Overview of the S-100 Bus John's Basement

1.3K views - 2 months ago

S-100 Bus Logic Analyzer Assemble & Test Pt. 2

S-100 Bus Logic Analyzer Assemble & Test Pt. 2 John's Basement

1.6K views - 3 months ago

S-100 Bus Logic Analyzer Assemble & Test Pt. 1

S-100 Bus Logic Analyzer Assemble & Test Pt. 1 John's Basement

1.8K views - 3 months ago

An S-100 Bus Analyzer Project

An S-100 Bus Analyzer Project John's Basement

1.4K views - 3 months ago

California Computer Systems 2422 FDC Card - WD1793 ReadTrack Command

California Computer Systems 2422 FDC Card - WD1793 ReadTrack Command John's Basement

616 views - 4 months ago

California Computer Systems 2422 FDC Card - Head Stepping Test

California Computer Systems 2422 FDC Card - Head Stepping Test John's Basement

792 views - 4 months ago

California Computer Systems 2422 FDC Card - MOSS Monitor Hacking

California Computer Systems 2422 FDC Card - MOSS Monitor Hacking John's Basement

605 views - 4 months ago

California Computer Systems 2422 FDC Card - 3.5" Drive Interface and MOSS Monitor

California Computer Systems 2422 FDC Card - 3.5" Drive Interface and MOSS Monitor John's Basement

752 views - 4 months ago

California Computer Systems 2810 Z80 CPU Card - MOSS Monitor

California Computer Systems 2810 Z80 CPU Card - MOSS Monitor John's Basement

819 views - 5 months ago

California Computer Systems 2810 Z80 CPU Card - Will It Boot?

California Computer Systems 2810 Z80 CPU Card - Will It Boot? John's Basement

1.6K views - 5 months ago

FPGA #32 - Command Line Macros, ifdef/ifndef, and Synthesizeable Initial Blocks

FPGA #32 - Command Line Macros, ifdef/ifndef, and Synthesizeable Initial Blocks John's Basement

373 views - 5 months ago

Z80 Nouveau With ECP5 FPGA

Z80 Nouveau With ECP5 FPGA John's Basement

1.9K views - 5 months ago

Z80 Retro #75 - SPI Performance Improvements & Added Utilities

Z80 Retro #75 - SPI Performance Improvements & Added Utilities John's Basement

767 views - 6 months ago

TMS9x18 VDP Status Register Polling Demonstration

TMS9x18 VDP Status Register Polling Demonstration John's Basement

372 views - 8 months ago

Z80 Nouveau Sprites FSM pt. 3

Z80 Nouveau Sprites FSM pt. 3 John's Basement

328 views - 9 months ago

Z80 Nouveau Sprites FSM pt. 2

Z80 Nouveau Sprites FSM pt. 2 John's Basement

289 views - 9 months ago

Z80 Nouveau Sprites FSM pt. 1

Z80 Nouveau Sprites FSM pt. 1 John's Basement

377 views - 9 months ago

Z80 Nouveau Sprites Overview

Z80 Nouveau Sprites Overview John's Basement

700 views - 9 months ago

Z80 Nouveau Joystick Port

Z80 Nouveau Joystick Port John's Basement

379 views - 10 months ago

Cheap Amazon Hackable Joystick from FOSA

Cheap Amazon Hackable Joystick from FOSA John's Basement

1.5K views - 10 months ago

FPGA #31 - Comments in an iverilog $readmemh() Hex File

FPGA #31 - Comments in an iverilog $readmemh() Hex File John's Basement

253 views - 10 months ago

FPGA #30 - The __FILE__ Macro

FPGA #30 - The __FILE__ Macro John's Basement

256 views - 10 months ago

Z80 Nouveau vdp_fsm.v Module Walkthrough pt. 1

Z80 Nouveau vdp_fsm.v Module Walkthrough pt. 1 John's Basement

353 views - 11 months ago

Z80 Nouveau vgasync.v Module Walkthrough

Z80 Nouveau vgasync.v Module Walkthrough John's Basement

443 views - 11 months ago

Box Opening A JCFANTS GJ-150 Miter Gauge & Testing On A 5+ Decades Old, Rusty, Craftsman Table Saw

Box Opening A JCFANTS GJ-150 Miter Gauge & Testing On A 5+ Decades Old, Rusty, Craftsman Table Saw John's Basement

727 views - 1 year ago

Z80 Nouveau vram.v Module Walkthrough

Z80 Nouveau vram.v Module Walkthrough John's Basement

372 views - 1 year ago

FPGA #29 - VGA/RGB Video Resistor DAC With a Color Palette.

FPGA #29 - VGA/RGB Video Resistor DAC With a Color Palette. John's Basement

958 views - 1 year ago

FPGA #28 - A Serial CRC Generator Module And a Verilog Generate For loop Example

FPGA #28 - A Serial CRC Generator Module And a Verilog Generate For loop Example John's Basement

601 views - 1 year ago

Using Grok to Develop a Modbus Application

Using Grok to Develop a Modbus Application John's Basement

723 views - 1 year ago

Z80 Nouveau vdp_reg_ifce.v Module Walkthrough

Z80 Nouveau vdp_reg_ifce.v Module Walkthrough John's Basement

430 views - 1 year ago

Z80 Nouveau vdp_irq.v Module Walkthrough

Z80 Nouveau vdp_irq.v Module Walkthrough John's Basement

536 views - 1 year ago

Z80 Nouveau vdp99.v Module Walkthrough

Z80 Nouveau vdp99.v Module Walkthrough John's Basement

606 views - 1 year ago

Z80 Nouveau CPU & VDP Bus Custom Clock Domain Synchronization

Z80 Nouveau CPU & VDP Bus Custom Clock Domain Synchronization John's Basement

573 views - 1 year ago

Z80 Nouveau VDP99 Overview

Z80 Nouveau VDP99 Overview John's Basement

1K views - 1 year ago

FPGA #28 - Creating a Verilog Testbench from a Waveform Diagram

FPGA #28 - Creating a Verilog Testbench from a Waveform Diagram John's Basement

809 views - 1 year ago

Z80 Nouveau VGA Proof Of Concept

Z80 Nouveau VGA Proof Of Concept John's Basement

1K views - 1 year ago

FPGA #27 - Using a pulse stretcher in a clock domain crossing synchronizer

FPGA #27 - Using a pulse stretcher in a clock domain crossing synchronizer John's Basement

984 views - 1 year ago

FPGA #26 - A closer look at the ICE40HX Block RAMs

FPGA #26 - A closer look at the ICE40HX Block RAMs John's Basement

1K views - 1 year ago

FPGA #25 - Verilog Custom Signal Synchronizers

FPGA #25 - Verilog Custom Signal Synchronizers John's Basement

872 views - 1 year ago

FPGA #24 - ICE40HX PLL

FPGA #24 - ICE40HX PLL John's Basement

1.2K views - 1 year ago

8080 and Z80 Assembly Language

8080 and Z80 Assembly Language John's Basement

3.1K views - 1 year ago

A simple DIY Solder Dispenser

A simple DIY Solder Dispenser John's Basement

1.5K views - 1 year ago

Western Electric 108AA Loudspeaker Teardown

Western Electric 108AA Loudspeaker Teardown John's Basement

816 views - 1 year ago

FPGA #23 - Switch Debouncing

FPGA #23 - Switch Debouncing John's Basement

1.4K views - 1 year ago

FPGA #22 - Clock Domains, Metastability, and Synchronizers

FPGA #22 - Clock Domains, Metastability, and Synchronizers John's Basement

3K views - 1 year ago

FPGA #21 - Verilog Bidirectional Open-Collector Drivers

FPGA #21 - Verilog Bidirectional Open-Collector Drivers John's Basement

940 views - 1 year ago

FPGA #20 - Verilog Tristate Drivers and the ICE40 SB_IO Module.

FPGA #20 - Verilog Tristate Drivers and the ICE40 SB_IO Module. John's Basement

1.1K views - 1 year ago

Simple PS/2 Keyboard Interface in Verilog

Simple PS/2 Keyboard Interface in Verilog John's Basement

2.6K views - 1 year ago

VGA Sync Generator and Color Bars in Verilog

VGA Sync Generator and Color Bars in Verilog John's Basement

2.5K views - 1 year ago

An Introduction to VGA Signal Timing

An Introduction to VGA Signal Timing John's Basement

3.4K views - 1 year ago

Z80 Retro #74 - 3D Printed Stackable PCB Standoffs

Z80 Retro #74 - 3D Printed Stackable PCB Standoffs John's Basement

1.4K views - 2 years ago

Z80 Nouveau Peripheral Shopping

Z80 Nouveau Peripheral Shopping John's Basement

869 views - 2 years ago

Opti-Tekscope Digital USB Microscope Camera Unboxing and Linux Testing

Opti-Tekscope Digital USB Microscope Camera Unboxing and Linux Testing John's Basement

872 views - 2 years ago

Z8S180, ICE40HX CP/M BIOS Port Public Release

Z8S180, ICE40HX CP/M BIOS Port Public Release John's Basement

763 views - 2 years ago

Z8S180, ICE40HX CP/M BIOS Port Part 4

Z8S180, ICE40HX CP/M BIOS Port Part 4 John's Basement

515 views - 2 years ago

Z8S180, ICE40HX CP/M BIOS Port Part 3

Z8S180, ICE40HX CP/M BIOS Port Part 3 John's Basement

857 views - 2 years ago

Z8S180, ICE40HX CP/M BIOS Port Part 2

Z8S180, ICE40HX CP/M BIOS Port Part 2 John's Basement

886 views - 2 years ago

Z8S180, ICE40HX CP/M BIOS Port Part 1

Z8S180, ICE40HX CP/M BIOS Port Part 1 John's Basement

2.1K views - 2 years ago