Changeset aa95122 in rtems for bsps/arm/atsam/include/bsp.h

Timestamp:
01/13/22 07:38:07 (2 years ago)
Author:
Christian Mauderer <christian.mauderer@…>
Branches:
master
Children:
e3f70b3
Parents:
fbd18c0
git-author:
Christian Mauderer <christian.mauderer@…> (01/13/22 07:38:07)
git-committer:
Christian Mauderer <christian.mauderer@…> (01/18/22 07:41:15)
Message:

bsp/atsam: Optionally use DMA for UART Rx

If the system is busy with other interrupts and the UART is set to a
fast baud rate, it's possible to loose UART interrupts and therefore
characters. This allows to optionally enable a DMA for the UARTs so that
a number of lost interrupts can be tolerated.

The number of DMAs on this chip is limited and not not all applications
need that feature. Therefore the DMA is disabled by default.

Close #4578

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