IWR6843ISK: Need point to probe for when a chirp is sent out

Larry Koudele

Part Number: IWR6843ISK

Tool/software:

I need to observe chirp initiation on the IWR6843ISK board. I have two boards that I want to synchronize. I want to see if the chirps are synced by comparing these signals on an oscilloscope. I see in the literature from TI that several possible balls on the BGA may have this signal. Which one, and do I need to do something to enable that signal.

Thanks,

9 months ago

0 Blake Kisshauer 9 months ago

TI__Expert 4600 points

Hey Larry,

Sync-in and Sync-out are the pins you want to look at. You can find more information about how to use this functionality by refering to the thread here:

https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/1459152/iwr6843aopevm-iwr6843aopevm

Thanks!

Blake

0 Larry Koudele 9 months ago in reply to Blake Kisshauer

Intellectual 310 points

Blake,

Are you sure? I have used Sync-in. One Sync-in causes all the chirps for one frame to occur. I want a signal for each chirp, not each frame. I doubt Sync-out will give that. Please confirm.

/Larry

0 Blake Kisshauer 9 months ago in reply to Larry Koudele

TI__Expert 4600 points

Larry,

Ok, so what you are looking for is a way to trigger an oscilloscope as a means of T&M for your cascaded system? Or are you looking to create the syncronization?

Blake

0 Blake Kisshauer 8 months ago in reply to Blake Kisshauer

TI__Expert 4600 points

Larry,

Since this is now a duplicate thread, I'm going to close this one.

Thanks.

Blake

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IWR6843ISK: Need point to probe for when a chirp is sent out