AWR1843AOP: How to remove InterFrameBlankTime in framePeriodicity

Hi,

Inter frame blank time is a necessity for the chip it cannot be set to 0.

Thanks,

Pradipta.

HI, Pradipta Bandyopadhyay.

is it possible to set interframeblanktime less than 150us ??

i should config frame without interblanktime.

Hi,

The Inter frame blank time is required. InterFrameBlankTime is primarily for sensor calibration/-monitoring, thermal control, transferring out any safety
monitoring data if requested, hardware reconfiguration for next frame, re triggering of next frame. 

The API execution for frame configuration will not go through properly if you do set the parameters correctly. That is why you get the error as well.  

The firmware on the chip is designed in this particular way only so it cannot be reduced below the minimum requirement. 

The only option you have is to reduce the active chirp time to accommodate in the same frame periodicity. 

Can you let us know what is the actual requirement here? Why do you want to eliminate this time?

Thanks,

Pradipta.

Hi,

The reason I want to reduce that time is that the application I am developing has a very short cycle time (frame) of 100us.

Therefore, if there is a minimum idle time(InterFrameBlankTime) of 150us between frames, it causes periods where normal operation cannot occur.

As you mentioned earlier, I understand that various tasks can be performed during the InterBlankTime, such as calibration, monitoring data transferring,

and reconfiguration, but I do not anticipate needing these tasks. This is because the total operating time of the application is limited to a few minutes at most.

and i want to show you our configuration of our application.

idleTime : 54.95

RampEndTime : 44.95us

(total chirp time -> 99.9us, this will be slightly changed at anytime)

profileId : 0 (use only one profile. there are no subframes, so i don't need reconfiguraiton and re-triggering)

chirpStartIdx : 0

chirpEndidx : 133

numLoops : 100

(total chirps in 1 frame : 13400 / 1 is the number of frames from the AOP perspective, and 13400 is the number of frames from our perspective)

framePeriodCity : 99.9us * 13400 + 150us

This is precisely why I want to minimize the InterFrameBlankTime. After approximately 1.34 seconds of continuous operation,

it enters an inactive mode for 150us.

Until now, I have sometimes directly modified the contents within the SDK files, but it seems that this area cannot be modified by the user.

Therefore, I am inquiring about it. If there is any way to reduce this time, please let me know.

Thanks.