Before we proceed with the first revision of the PCB, we need to consolidate our design requirements for it and add some more detail to the schematic. Feel free to add anything I've missed!
Schematic and Library Changes
- Make a schematic symbol and footprint for a SMD test point and add them to the regulator outputs
- Add appropriate (values?) decoupling caps for MCU and CAN ICs (Echoing Kevin's concern: filtering?)
- Expand pinout descriptions for MCU (what to include?)
- Add extra caps on input and output of the regulators to be populated if needed after load testing
- Add new dual-use mezzanine connector footprint to schematic library
- Add debug LEDs (attach to MCU and mezzanine)
PCB design decisions
- All components on top of board except clik-mate connectors and debug LEDs
- Board dimension target is 5 cm x 5 cm (not of vital importance)
- Mounting holes (M4) on each corner
- Mezzanine connector will be close to the center of the board
- 2-Layer PCB with 1oz copper