C667x DDR3 read/write block example

ronengl

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

over 11 years ago

0 Chad Courtney over 11 years ago

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 ronengl over 11 years ago in reply to Chad Courtney

Intellectual 340 points

Thanks Chad,

I will look in the EDMA examples as you suggested.

Best,

Ronen

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C667x DDR3 read/write block example