KiCAD-Gigabit-Ethernet-Interface-Project

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🚀 High-Speed Gigabit Ethernet Interface

Welcome! This repository contains the complete hardware design files for a custom-built, 6-layer Gigabit Ethernet interface board.

The design is centered around the powerful STM32F746NGH6 (an ARM Cortex-M7 MCU) and the DP83867IR Gigabit PHY. The entire layout was planned to meet strict high-speed design rules, featuring a robust multi-rail power supply and controlled impedance routing for 1Gbps performance.

🛠️ Key Features & Components

Brain (MCU): STM32F746NGH6 (ARM Cortex-M7)
Translator (PHY): DP83867IRPAPT (10/100/1000 Mbps Gigabit PHY)
Data Interface: RGMII
Port (Connector): ARJM11D7-502-AB-EW2 (A shielded Gigabit MagJack with integrated LEDs)
Power Supply: 5V USB-C input, feeding a "power tree" of four independent LDOs for ultra-clean +3.3V, +2.5V, +1.8V, and +1.1V rails.
PCB: Custom 6-layer, 80x50mm board with controlled impedance routing.
Debug: Standard 10-pin ARM SWD (Serial Wire Debug) header.

✅ Hardware Project Status: Complete!

This repository covers the complete hardware design and manufacturing file generation. All phases of the hardware build are finished.

✅ Phase 1: Component Selection
- Selected and verified the core MCU, PHY, MagJack, and all power components for Gigabit-speed requirements.
✅ Phase 2: Schematic Design
- Created the full electronic blueprint, connecting all components and defining all power and signal nets.
✅ Phase 3: Pre-Layout Checks
- Ran a full Electrical Rules Check (ERC) and assigned all physical component footprints.
✅ Phase 4: PCB Layout
- Designed the 6-layer stackup, floorplanned all components, poured all ground and power planes, and hand-routed all 17 critical high-speed differential and RGMII traces.
✅

Comments

🚀 High-Speed Gigabit Ethernet Interface

Welcome! This repository contains the complete hardware design files for a custom-built, 6-layer Gigabit Ethernet interface board.

🛠️ Key Features & Components

Brain (MCU): STM32F746NGH6 (ARM Cortex-M7)

Translator (PHY): DP83867IRPAPT (10/100/1000 Mbps Gigabit PHY)

Data Interface: RGMII

Port (Connector): ARJM11D7-502-AB-EW2 (A shielded Gigabit MagJack with integrated LEDs)

Power Supply: 5V USB-C input, feeding a "power tree" of four independent LDOs for ultra-clean +3.3V, +2.5V, +1.8V, and +1.1V rails.

PCB: Custom 6-layer, 80x50mm board with controlled impedance routing.

Debug: Standard 10-pin ARM SWD (Serial Wire Debug) header.

✅ Hardware Project Status: Complete!

This repository covers the complete hardware design and manufacturing file generation. All phases of the hardware build are finished.

✅ Phase 1: Component Selection

Selected and verified the core MCU, PHY, MagJack, and all power components for Gigabit-speed requirements.

✅ Phase 2: Schematic Design

Created the full electronic blueprint, connecting all components and defining all power and signal nets.

✅ Phase 3: Pre-Layout Checks

Ran a full Electrical Rules Check (ERC) and assigned all physical component footprints.

✅ Phase 4: PCB Layout

Designed the 6-layer stackup, floorplanned all components, poured all ground and power planes, and hand-routed all 17 critical high-speed differential and RGMII traces.

✅

KiCAD-Gigabit-Ethernet-Interface-Project

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🚀 High-Speed Gigabit Ethernet Interface

🛠️ Key Features & Components

✅ Hardware Project Status: Complete!

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🚀 High-Speed Gigabit Ethernet Interface

🛠️ Key Features & Components

✅ Hardware Project Status: Complete!