Hi experts,
The Reference Manual mentions in chapter 32.2.2 the possibility to place the packet buffer descriptors in CPU RAM instead of the dedicated CPPI buffer descriptor memory, but it does not describe how this is achieved.
What needs to be configured to place the packet buffer descriptors in CPU RAM?
Thank you and best regards,
Max
Hi Max,
The Header descriptor pointer Registers (HDP) will hold the starting addresses of the descriptor pointers. If you are storing the descriptors in the CPPI memory than you will give corresponding addresses to the Header descriptor pointer registers or else if you are planning to use CPU RAM then you have to give the corresponding locations of the descriptors in the RAM to the HDP.
Please go through the above highlighted section to understand more details about it.
--
Thanks & regards,
Jagadish.
