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BF60x - EMAC/DMA question

Question asked by pfeifferc on Apr 6, 2016
Latest reply on Apr 13, 2016 by pfeifferc

Hi !

In the EMAC-functional description of the HR-manual (BF60x) on page 23-85 there is

a statement in section DMA Initialization

7. Ensure that the software creates three or more different tx or rx descriptors...

 

why should there 3 or more? if I copy the received frames immediately there should no problem if I use

2 buffers (ping/pong).

 

please correct me if I'm wrong or there is a special background behind this demand.

 

regards chris

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