Drimit Link Open Standard

Resources - Technical Reference Materials

This directory contains all technical reference materials, code examples, design files, and implementation resources for the DL-OS specification.

📁 Directory Structure

⚡ `/schematics/`

Purpose: Electrical circuit diagrams and reference designs Formats: KiCad (.kicad_sch), Altium (.SchDoc), PDF exports Usage: Reference circuits, protection designs, complete module schematics

Organization:

/schematics/
├── /protection-circuits/
│   ├── esd-protection-can-v1.kicad_sch
│   ├── power-protection-ideal-diode-v2.kicad_sch
│   └── overvoltage-tvs-array-v1.kicad_sch
├── /reference-modules/
│   ├── basic-io-module-v3.kicad_sch
│   ├── analog-control-module-v2.kicad_sch  
│   └── display-module-oled-v1.kicad_sch
├── /base-plates/
│   ├── 4x4-matrix-backplane-v2.kicad_sch
│   ├── 8x8-matrix-backplane-v1.kicad_sch
│   └── power-distribution-hub-v3.kicad_sch
└── /test-fixtures/
    ├── connector-test-jig-v1.kicad_sch
    └── protocol-analyzer-v2.kicad_sch

🔧 `/pcb-layouts/`

Purpose: PCB design files and manufacturing data Formats: KiCad (.kicad_pcb), Gerber files, Pick & Place data Usage: Reference PCB designs, layout guidelines, manufacturing files

Organization:

/pcb-layouts/
├── /reference-designs/
│   ├── /basic-module/
│   │   ├── basic-module-v3.kicad_pcb
│   │   ├── gerbers/
│   │   └── assembly/
│   └── /base-plate-4x4/
│       ├── base-plate-4x4-v2.kicad_pcb
│       ├── gerbers/
│       └── assembly/
└── /layout-guidelines/
    ├── trace-routing-examples.kicad_pcb
    └── via-stitching-patterns.kicad_pcb

🔩 `/mechanical/`

Purpose: 3D models, mechanical drawings, and CAD files Formats: STEP (.stp), STL, PDF drawings, CAD native formats Usage: Connector models, enclosure designs, assembly drawings

Organization:

/mechanical/
├── /connectors/
│   ├── pogo-connector-3x3-v2.stp
│   ├── magnetic-alignment-system.stp
│   └── connector-assembly-drawing.pdf
├── /enclosures/
│   ├── standard-module-case-v3.stp
│   ├── base-plate-frame-aluminum.stp
│   └── enclosure-design-guidelines.pdf
└── /assemblies/
    ├── complete-4x4-system.stp
    └── module-installation-guide.pdf

💻 `/code-examples/`

Purpose: Firmware, software examples, and reference implementations Formats: C, C++, Python, JavaScript, configuration files Usage: Driver code, protocol implementations, host software examples

Organization:

/code-examples/
├── /firmware/
│   ├── /esp32-reference/
│   │   ├── main.c
│   │   ├── can_driver.c
│   │   ├── orientation_detection.c
│   │   └── CMakeLists.txt
│   ├── /rp2040-module/
│   │   ├── module_main.c
│   │   ├── sensor_interface.c
│   │   └── pico_sdk_import.cmake
│   └── /zephyr-rtos/
│       ├── prj.conf
│       ├── src/main.c
│       └── boards/
├── /host-software/
│   ├── /python-api/
│   │   ├── dlOS_api.py
│   │   ├── device_discovery.py
│   │   └── examples/
│   ├── /javascript-web/
│   │   ├── dlOS-web.js
│   │   ├── webHID-integration.js
│   │   └── examples/
│   └── /c-library/
│       ├── libdlOS.h
│       ├── libdlOS.c
│       └── Makefile
└── /protocols/
    ├── cbor-message-examples.json
    ├── can-frame-definitions.h
    └── security-key-exchange.c

🧪 `/test-procedures/`

Purpose: Test specifications, procedures, and validation tools Formats: Markdown, PDF, Python scripts, configuration files Usage: Compliance testing, validation procedures, automated test suites

Organization:

/test-procedures/
├── /electrical-tests/
│   ├── connector-continuity-test.md
│   ├── esd-immunity-test-iec61000.md
│   └── power-protection-validation.py
├── /mechanical-tests/
│   ├── insertion-force-measurement.md
│   ├── durability-cycling-test.md
│   └── dimensional-validation.pdf
├── /protocol-tests/
│   ├── can-conformance-suite.py
│   ├── discovery-protocol-test.md
│   └── security-validation.py
└── /automated-suites/
    ├── comprehensive-test-runner.py
    ├── test-configuration.yaml
    └── results-analysis.py

📋 File Naming Conventions

General Format

category-description-version-variant.extension

Version Numbering

Major changes: v1, v2, v3, etc.
Minor updates: v1-1, v1-2, etc.
Revisions: v1-1a, v1-1b, etc.

Examples

Schematics:
- protection-esd-can-bus-v2.kicad_sch
- module-basic-io-v3-1.kicad_sch

Code:
- firmware-esp32-main-v2.c
- api-python-discovery-v1-2.py  

Mechanical:
- connector-pogo-3x3-v2-male.stp
- enclosure-module-standard-v3.stp

🔧 Tool Requirements and Compatibility

CAD Software

KiCad 7.0+ (preferred for electrical design)
FreeCAD/Fusion 360 (mechanical design)
Compatible viewers: Any STEP/PDF viewer

Development Environment

ESP-IDF 5.0+ (ESP32 firmware)
Pico SDK (RP2040 firmware)
Zephyr RTOS 3.6+ (cross-platform firmware)
Python 3.8+ (host software examples)

File Format Standards

Electrical: KiCad native, PDF for documentation
Mechanical: STEP for interoperability, native CAD as source
Code: UTF-8 encoding, Unix line endings (LF)
Documentation: Markdown with embedded code blocks

📖 Usage Guidelines

Reference in Documentation

See reference implementation: [ESP32 CAN Driver](../resources/code-examples/firmware/esp32-reference/can_driver.c)

Schematic available: [ESD Protection Circuit](../resources/schematics/protection-circuits/esd-protection-can-v1.kicad_sch)

License and Attribution

All code examples: MIT License (unless otherwise noted)
Hardware designs: CERN-OHL-P v2 (same as main specification)
Include license header in all source files
Document any third-party components or libraries

Quality Standards

Code: Follow language-specific style guides (PEP 8 for Python, etc.)
Schematics: Include proper component values and part numbers
PCB: Include assembly drawings and fabrication notes
Mechanical: Include material specifications and tolerances

🔄 Version Control and Updates

Change Management

Create new version files for breaking changes
Update references in documentation when files change
Maintain changelog for major resource updates
Archive old versions in separate directories

Validation Status

Mark validation status in file headers:

/*
 * DL-OS Reference Implementation
 * File: can_driver.c
 * Version: v2.1
 * Status: VALIDATED - Tested on ESP32-S3
 * Last Updated: 2025-10-24
 */

Contribution Guidelines

Test all code examples before submission
Validate schematics with ERC (Electrical Rule Check)
Include comprehensive documentation
Follow existing naming conventions and structure

Maintained by: Drimit Labs Engineering Team
License: Mixed (see individual files for specific licenses)
Support: Open issues for bugs or enhancement requests

This site is open source. Improve this page.

Drimit Link Open Standard

Resources - Technical Reference Materials

📁 Directory Structure

⚡ /schematics/

🔧 /pcb-layouts/

🔩 /mechanical/

💻 /code-examples/

🧪 /test-procedures/

📋 File Naming Conventions

General Format

Version Numbering

Examples

🔧 Tool Requirements and Compatibility

CAD Software

Development Environment

File Format Standards

📖 Usage Guidelines

Reference in Documentation

License and Attribution

Quality Standards

🔄 Version Control and Updates

Change Management

Validation Status

Contribution Guidelines

⚡ `/schematics/`

🔧 `/pcb-layouts/`

🔩 `/mechanical/`

💻 `/code-examples/`

🧪 `/test-procedures/`