[RTEMS Project] #4578: arm/atsamv: UART loses receive characters when the system has a high interrupt load (cloned)

[RTEMS trac]

#4578: arm/atsamv: UART loses receive characters when the system has a high
interrupt load (cloned)
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  Reporter:  Christian Mauderer  |      Owner:  Christian Mauderer
      Type:  defect              |     Status:  assigned
  Priority:  normal              |  Milestone:
 Component:  bsps                |    Version:  6
  Severity:  normal              |   Keywords:
Blocked By:                      |   Blocking:
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 Cloned from #4577:
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 The UART/USART of the ATSAM doesn't have any FIFO buffer. Therefore every
 received character has to be processed before the next one arrives. In
 situations with a high interrupt load or during long interrupt locks, this
 might not work reliable and the UART/USART can loose characters.

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Ticket URL: <http://devel.rtems.org/ticket/4578>
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