• State
  • Locked Locked
  • Replies 0 replies
  • Subscribers 100 subscribers
  • Views 131 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

What is the performance for edma3 copy fromm DDR to DDR?

ruqun xu
Intellectual 990 points
Other Parts Discussed in Thread: DM385

Hi.

   I write a frame copy api in m3vpss.The IPNC RDK is 3.8.

   DM385 ARM:     1000MHz.

                 DDR:       533MHz.

                 L3/EDMA: 240MHz.

  The source frame size is 12MByte.

  The source address and dest address  are in DDR3.

  I used edma3 to copy the 12MBytes frame from source adrress  to dest address.

 I found that the edma3 copy need 28 ms.

 What is the performance for edma3 copy from  DDR to DDR?

 Also what can I do to increse the bandwidth? 

Thanks.