HWTRIGGER start new frame IWR6843 with SYNC_IN pin

Hi Gustav,

Typically we don't support the Sync_IN pin on the IWR6843 device. I am looking internally to determine if there is a workaround.

Regards,

Justin

What do you mean typically? In the data sheet it is clearly referenced.

www.ti.com/.../iwr6843.pdf

SYNC_IN is used in cascaded devices to synchronize the clocks. The IWR6843 is not a cascade device. It has the pin but it doesn't do anything on this device.

If the SYNC_IN functionality is not available, perhaps you can still use a GPIO interrupt trigger? If you set the frame as software triggered, then you can have a software interrupt start the frame. The software interrupt can be triggered by the GPIO pin. Of course the timing won't be as precise as a direct hardware trigger, but it will still be reasonable.

Regards,

Justin

Ok thanks,

So in IWR6843 does not support hardware triggered frames? Only cascade devices supports it?

Regards Gustav