IWR6843AOP: IWR6843AOP

Hi Guolong,

1. The current configuration of HPF1 a d HPF2 are set to optimal configuration. You need to change the configuration

2. Profile configuration is needed before runtime calibration is run

Regards

Hi Abhishek,

We have already delivered a batch of products to our clients, in which the SDK's calibration profile was used. If we change the profile setting, like the one in the above 2nd question, we do need to re-calibrate? In some cases, we just enable 2tx rather than all of them. Does it mean the re-calibration should be performed?

If so, would you please suggest alternative solutions? It's almost impossible to do the calibration for delivered products.

Best,

Guolong

Hi Guolong, 

If you have only reduced 1TX and kept rest of the configuration same they re-calibration is not needed. Calibration is needed when you change Rx gain, Tx Power, Chirp Slope, Start Frequency. But you need to execute runtime calibration every time you power up. Run time calibration needs to be run again if the temperature changes by +/-30C. So, for every power up run time calibration is necessary

I could not understand why you say that re-calibration is not possible. Factory recalibration is not required in your case but if you provide a software update to your customer for using only 2TX then any modification in run time calibration is incorporated in the update.

Did you intend to ask about factory calibration?

Regards

Abhishek,

Thanks for your quick response. 

Yes, the impossible calibration mentioned is the factory calibration, in which a triangle reflector is needed. Our firmware changes the profile config according to the end user's monitoring configuration.  

Would you give me more details about which parameters need the factory calibration and which could be solved by the run time calibration?

Really appreciated your help.

Best,

Guolong

Hi,

Really appreciated your help.

Best