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Assembly Checks

  • verify no connector pins look soldered together

  • verify no pins on STM32 look shorted

  • verify all components for Flight 5.7V Variant are fitted

    • solder on radial capacitor for input buck

  • solder on test input leads for buck testing

  • verify pin 1 on chips aligns with indicator

  • plug/unplug cycles on connectors for reliability

Power Testing

DMM

  • make sure no power rails are shorted to ground or each other with DMM

  • slowly increase voltage (with low current limit, 100mA max) on buck input, check its not drawing excessive current/power (ensure no output load)

  • probing output net for voltage stability with DMM

  • then slowly increase voltage on internal 5v rail, verify the internal 3v3 rail turns on

E-load

  • load test on buck converter: use eload to fully saturate the buck and verify you get the output current expected (up to 1A)

  • Efficiency calculations: 12V, 24V, 50V

SingleServoDriverEfficiency.png

Oscilloscope

  • scope switch node

  • probing output net for voltage stability with oscilloscope

then handoff to firmware for testing

Firmware Testing

  • attempt to flash boards

  • all leds functional

  • pwm output functional

  • CAN circuit functional

  • pixhawk servo CAN system test

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