AWR1642: what mistakes would cause this problem "MMWAVE_ECALTRIG"

Hi,

MMWAVE_ECALTRIG is an error that indicates that a run time calibration has failed.

Does your application read the calibration report? This can provide more information about which calibration has failed

thank you

Cesar

Hello,

I have read the calibration status ,  it shows that "Rx gain calibration" was failure , 

Hi,

Is this a TI board or custom board?

We need to make sure that it has the Production Silicon ES 2.0

Is there interference in the environment

https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/870077/awr1843-question-about-ana-11-tx-rx-gain-calibrations-sensitive-to-large-external-interference

Thank you
Cesar

It's custom board, ES 2.0 

Is there interference in the environment?

Thank you

Cesar

No, at room temperature

What about interference? Are there any other sensors running when calibration is performed?

thank you

Cesar

No,The sence is clean , it's easy to start up at -40 ° C and 80 ° C, but hard to start up at room temperature 

Hi,

Based on the description I am not able to say why the Rx Gain calibration fails sometimes.

Give me some time to check with design team

thank you
Cesar

Hi,

Can you please give a detailed description

1) How many sensors have this issue?

2) Does this always happen or only sometimes?

3) Does it always happen at the same temperature?

Thank you

Cesar

Hello,

1)     We've only found one so far.

2） It happen sometimes.

3）Yes , it always happen between 10℃ and  40℃

Hello Xiao,

I've been requested to start an RMA process for this device. Could you please email me offline on shareef@ti.com?

Thanks,

-Shareef