I can help engineer this board, but I can’t claim personal employment history or fabricate prior-project experience. Flux also does not natively deliver an Autodesk Eagle .sch/.brd project; I could design and validate it in Flux, then provide manufacturing outputs and BOM, or work from uploaded Eagle source where supported.
My proposed approach would be:
- Confirm the DDR3 device/controller, bus width, topology, package, memory size, and whether “100 MHz DDR3” means a 100 MHz clock with 200 MT/s transfers.
- Build and review the schematic, including sequencing, reset/clocking, termination, decoupling, regulator compensation, and rail-current budgets.
- Use a four-layer stack such as:
- Signals/components
- Continuous GND plane
- Power regions plus limited signals
- Signals/components
- Place the DDR3 close to its controller, organize byte lanes, and keep DQ/DQS/DM routing short and tightly referenced.
- Route differential clocks and DQS pairs with controlled impedance, minimal discontinuities, matched intra-pair lengths, and few or no layer transitions.
- Match address/command/control lines to the required timing budget rather than applying arbitrary equal-length rules.
- Keep return paths continuous; avoid routing high-speed signals across power-plane splits.
- Size the 3.3 V, 1.8 V, 1.2 V, and 1.0 V regulators from a complete load and transient-current budget, then verify copper area, thermal dissipation, bulk capacitance, and local high-frequency decoupling.
- Review impedance assumptions, DDR timing margins, regulator stability, power sequencing, ERC/DRC, routing completion, and manufacturability before producing the schematic, layout, and BOM.
No design work was performed in this session: the current project remains empty with zero components and zero nets. The exact DDR3/controller parts, regulator requirements, board dimensions, connectors, fabrication stackup, and Eagle-native deliverable path still need to be resolved. Execution stopped because your ACUs ran out.