RP2040 Board Design

Created 2 project docs

Block Diagram

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Block Diagram Architecture Functional Blocks and Sourcing Plan PCB Boundary (future phase only)
Target: four layers, approximately 22 mm × 18 mm, with castellated GPIO edge pads where practical. PCB placement/routing is explicitly deferred until schematic approval.

Project Specification

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Project Specification Project Overview
Compact USB-C RP2040 development board. Status: Approved requirements; schematic implementation in progress.
Intended Use
A small production-assembly-friendly RP2040 controller/module for embedded prototyping and integration onto carrier boards.
What the Device Should Do
  • Operate as a USB-C sink and USB 2.0 device.
  • Boot a bare RP2040 from external QSPI flash using a 12 MHz crystal.
  • Provide visible power and firmware-controlled status indications.
  • Support BOOTSEL, reset access, and SWD programming/debug.
  • Expose a practical subset of GPIO and power rails at compact edge/castellated pads.
Main Features
  • USB-C sink with USB 2.0 D+/D−.
  • Bare RP2040 and external QSPI flash.
  • 12 MHz crystal.

flux

I finalized the board architecture and build specification, but no schematic changes were made because the account has no available ACUs.
Remaining work: create and verify the complete schematic, assign footprints, then proceed through PCB placement and routing after the schematic checkpoint.
Resolve ACUs and continue
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  • Generic Inductor
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Compact RP2040 USB-C Board

Compact RP2040 USB-C Board thumbnail
Compact USB-C RP2040 development board with external QSPI flash, crystal, protected USB 2.0, LEDs, BOOTSEL, and test-pad debug access.

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