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Rabbit 6000 User’s Manual
digi.com
262
24.3.5.4 Circular Queue
A circular queue is a buffer array or linked list where the final buffer is linked back to the first buffer in the
sequence. This method allows for continuous reception of transfers without having to reload the initial
address for the DMA buffer descriptor sequence.
The “ping-pong buffer,” where there are only two buffers, is the simplest version of a circular queue. The
application can operate on one buffer while the other buffer is being loaded.
24.3.5.5 Linked Array
The linked array is simply a linked list of buffer arrays, where the last buffer in each array is linked to the
first buffer in the next array (which can be located anywhere in memory). This method could be useful
where a message is broken down into separate transfers, but entire messages could be scattered/gathered
from anywhere in memory.
Содержание 6000
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