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Ping-Pong DMA on ADSP-21469 SPORTs

Question asked by ChristianH on Nov 30, 2010
Latest reply on Nov 30, 2010 by Mitesh



I've just starting with the ADSP-21469 SHARC.

Tell me if I'm wrong but it seems that it is not possible to set the SPORT or Link Port DMA to operate in Ping-Pong mode?

Only for IDP and MLB I found such a functionality.


My system will be 2 SHARCs linked by the link ports.

The first receives 16x 2-channel TDM from AD converters via SPORTs.

The second sends 16x 16-channel TDM to an FPGA via SPORTs.

My intention was to use a Ping-Pong input/output buffering method.


So do I have to implement this manually?