IWR6843ISK: Minimizing inter-chirp time

Hello, 

We are looking into your question. Please give us a day or so to get back to you. 

Thank you,

Josh

Hi Adam, 

I worry that this is a hard constraint on the device. Passing to the HW team to confirm, but perhaps there is another way to accomplish what you want here? What if you simply did one very long chirp instead of successive 10 MHz chirps?

Best,

Nate

I'm trying do a slow time CDMA coding on the series of small chirps and doing one long chirp will remove the ability to apply the phase coding.

Hi Adam,

Ideally after completion of a single chirp, processing chain takes it and performs a range FFT on it. This is one of many events that takes place between two chirps. I worry that if you discard the time delay between chirps, it will affect multiple places in the front end. So just bypassing the check might not be enough to successfully achieve this requirement.

Thanks,

Swarnendu.

That's true, and the FFT would be a concern if I were processing in real time, but at the moment I am just saving the raw data and trying to examine the effect a transmit scheme like this would have. I was hoping that setting the start frequency of the next chirp to the end frequency of the previous chirp would eliminate or reduce the other events that need to take place between chirps. If this limitation is too strict and there isn't a way to reduce the inter-chirp time below what I've reached then that is fine and I can examine other methods.

I'll take it as it can't be done then. Thanks!