C6678-SRIO 1x mode outportid

____-__-__

Hi everyone,

I use SRIO to communicate between two C6678 DSPs.I configured the port mode to 2xLaneA_LaneB, and tested SWRITE and NREAD using outportid = 0, that worked fine. Then i change the port mode to 1xLaneA_1XLaneB, it works still fine when using outportid = 0, but failed when using outportid = 1.

In my opinian, when set the port mode to 1xLaneA_1XLaneB, LSU transfers data through port0 when outportid = 0, through port1 when outportid = 1. Is that right?

over 10 years ago

0 Ganapathi Dhandapani95 over 10 years ago

TI__Mastermind 28085 points

Hi,

Yes, your understanding is correct. Have you configured SRIO lanes as two 1x ports or four 1x ports?

Please take a look at below thread

http://e2e.ti.com/support/dsp/c6000_multi-core_dsps/f/639/p/137408/501915.aspx#501915

Thanks,

0 ____-__-__ over 10 years ago in reply to Ganapathi Dhandapani95

Intellectual 780 points

Hi,

Yes, i have configured both the two DSPs's SRIO lane as two 1x port. But it seems only portid = 0 can works nomally.

0 Ganapathi Dhandapani95 over 10 years ago in reply to ____-__-__

TI__Mastermind 28085 points

Hi,

Please take a look at below thread.

http://e2e.ti.com/support/dsp/c6000_multi-core_dsps/f/639/p/316724/1115699.aspx#1115699

Thanks,

0 ____-__-__ over 10 years ago in reply to Ganapathi Dhandapani95

Intellectual 780 points

Hi,

Thanks for your reply. I find a bug in my program and the problem has been solved. But i have another question, if i use two 2x mode and communicate with two equipments at the same time, there is a risk that the two equipment may write to the same address in my DSP, then some data could be lost before being moved to another address. How can i avoide it?

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C6678-SRIO 1x mode outportid