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C667x DDR3 read/write block example

ronengl
Intellectual 340 points

Hello,

Does anyone knows where can I find an example for reading a block of data from DDR3 memory to internal memory, modify it and write the block back?

I need it to measure the external memory throughput.

I'm using CCS5, MCSDK 2.0 and C6670 EVM.

Best

Ronen

  • 0
    TI__Mastermind 30825 points

    I'd suggest using the EDMA examples.  Note you'll probably want to use multiple EDMA xfers going on simultaneously as described in the Throughput Application Note to make sure you're maximizing the DDR3 Throughput.

    Note that there isn't a particular example code provided to perform the Tput performance check.  That said many customers have tried, and once they used the multiple EDMA xfers in parallel they achieved the performance numbers reported in the Throughput Application Note.

    Best Regards,

    Chad

  • 0 in reply to Chad Courtney
    Intellectual 340 points

    Thanks Chad, 

    I will look in the EDMA examples as you suggested.

    Best,

    Ronen