AWR6843: Advanced Frame Configuration with 3 subframes

Hi,

We need to define a chirp configuration for the AWR6843 sensor with the structure like the following picture

As you can notice from the above figure:

1. It is composed by 3 subframes;
2. The chirp active time in each subframe is always 7.44 ms (40 chirp x (25 us ramp time + 37 us idle) x 3 TX antennas);
3. The first two subframes have a periodicity of 33 ms, the third one has a periodicity of 94 ms in order to leave room for the frame processing.

We understand that we need use the subframes and we defined the following configuration:

sensorStop

flushCfg

dfeDataOutputMode 3

channelCfg 15 7 0

adcCfg 2 1

adcbufCfg -1 0 0 1 1

profileCfg 0 60.05 37 6 25 394758 0 120 1 64 3400 0 0 40

chirpCfg 0 0 0 0 0 0 0 1

chirpCfg 1 1 0 0 0 0 0 2

chirpCfg 2 2 0 0 0 0 0 4

advFrameCfg 3 0 0 1 0

subFrameCfg 0 0 0 3 40 33 0 1 1 33

subFrameCfg 1 0 0 3 40 33 0 1 1 33

subFrameCfg 2 0 0 3 40 94 0 1 1 94

At the moment I've verified that the configuration is accepted by mmWave library without error and the sensor appears to be transmitting.

Could you please review the configuration for inconsistencies that I've missed  ?

Are there any specific aspects that need to be taken care of in the DSS SW when managing the subframe with respect to working with standard frame ?

Could you also provide any suggestion on how to test and verify that the configuration is working as expected?

Best Regards,

Riccardo