Xmega128a4u BO Testplan

Aus Chaostreff Chemnitz

This is the explanation how to test the Xmega128a4u breakout board in mass production process.

  • All pins on the two 20-pin connectors are tested against short circuit or open connection.
  • The crystal is testet by starting the crystal oscillator.
  • LEDs are optically tested.
  • USB connector is testet against short circuit and open connection.
  • USB ESD protection is testet: BAS70 diode forward voltage, Z-diode breakdown voltage
  • Reference voltage capacitors are tested.

Testboard

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