Orchard validation matrix

Validation Matrix

Validation matrix

Subsystem	basic status	extended status	notes
Kinetis-W CPU	OK		basic SWIO functions OK, OS operational
WS2812B driver	OK		confirmed CPU has GPIO performance to operate on-board LEDs; extended chain testing TBD
I2C	OK
SPI	OK
OLED	OK
UART	OK		Works well enough for chibiOS
Integrated radio
BLE
Accelerometer	OK
Microphone	ECO1 / OK		Schematic symbol mirrored; requires board respin. Tested OK on EVT1b
MPR121	OK
Jog dial + buttons	OK		OK for direct touch on dielectric. Not yet tested for capacitive projection through ABS bezel.
GPIO expander	OK
Fancy battery charger	OK
Shipping state power	OK	OK	immeasurable leakage when in "ship mode" e.g. soft battery disconnect state
Gas gauge	OK/ECO3		gas gauge itself works fine, talks on I2C; but topological position is incorrect and requires ECO3 to be effective
USB charging port	OK
USB charging port OC protect
Cheesy battery charger option	N/A		not populated in EVT1
Cheesy battery level option	N/A		not populated in EVT1
On-state power characterization
Standby power characterization

Power Consumption

As measured while on battery, ~3.9V through test.

• Powered on, 16 LEDs running wave-rainbow at default brightness: 78-79mA
• Halted (debug mode) 16 LEDs frozen on wave-rainbow: 76.5mA
• Captouch off: 76.5mA (not measurable reduction)
• LEDs off: 40mA
• Accel off: 39.8mA
• BLE off: 33.1mA
• OLED off: 58.7mA
• Boost off: 25.3mA
• gpiox off: 25.3mA
• PEE-PBE: 22.7mA
• PBE-FBE: 22.1mA
• FBE-FEI: 21.5mA
• Radio off, CPU halted: 3.0mA

Alt-order:

• Halted, everything on: 77.5mA
• Captouch off: 77.4mA
• LEDs off: 40mA
• Accel off: 39.9mA
• BLE off: 33.1mA
• Boost off: 33.2mA
• OLED off: 24.7mA
• gpiox off: 25.3mA or 24.6mA?
• PEE-PBE: 22.7mA
• PBE-FBE: 22.1mA
• FBE-FEI: 21.4mA
• Radio stop: 3.0 mA
• CPU to VLLS0: 0.6mA

Ship mode:

• 0.09mA - 0.130mA leakage (no hibernate instruction to gas gauge)

No difference when hibernation instruction is given to gas gauge.