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- All components on top of board except clik-mate connectors and debug LEDs (also TVS diode and 3 decoupling caps)
- 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
Revision 22
Design Changes
- Replace mezzanine connector with 0.8mm pitch equivalent to increase lifespan
- Remove extra regulator circuit (Kevin's)
- Fix all footprints to match the Hardware Style Guide (WIP)
- Replace board info silkscreen as directed in the Hardware Style Guide (WIP) (TBD)
- Replace connectors? (TBD)
- Combine SWD and UART headers (we may be able to hack the programmers to also be UART to USB adapters) or replace them with prototyping headers
- Fix regulator inductor and resistor divider values (Kevin Chen (Unlicensed))
- Add pin 1 to silkscreen
- Silkscreen pinout for connectors
- Smaller crystals
- Reduce induced ripple on 12V rail
- Improve ripple behavior on 3.3V rail
- Calibrate regulator to 3.3V (currently at 3.36V)
- Get stencils
- Add holes for mezzanine pegs
- Male side of mezzanine on controller board