LP-CC2652R7: Completely shut down BLE central

Hi,

To identify where does the extra power consumption come from, could you setup EnergyTrace++ as described (here) in the User's Guide and provide us with the energy trace?

Regards,

Tanguy

EnergyTrace_D_2024_05_14_180815.profxml

This is the energy trace that I captured. The overall procedures are : 1. standby  , 2. central connect to peripheral , 3. stop connection, 4. standby. 

Please help to take a look. 

Thank you very much 

Hi,

I do not manage to download the file you have shared.

Please insert the file to your message clicking on Insert > Image/video/file, then "Upload", then select the file and click "OK".

Appreciate your comprehension.

Best regards,

EnergyTrace_D_2024_05_14_180815.zipIt is not allowed to insert the file directly, so I zip the file and insert it here. Please take a look. Thank you.

Hi,

I am afraid the file you have provided does not contain power numbers.

Could you provide screenshots showing your issue instead? 

Regards,

Hi, I found that using EnergyTrace++ to monitor the status that before connection and after connection is the same, but the actual current measurement by my multimeter are different.  

The original measured standby current is 1.0uA but after the connection and disconnection, it becomes 1.4uA.

What do you suggest I could do to find out why there is 0.4uA more? Thank you

Hi,

For sanity, could you please confirm you are using a power analyzer, or EnergyTrace, and not a multimeter to measure the device power consumption.

Please provide screenshots showing the EnergyTrace power traces before establishing the connection and after terminating the connection.

Best regards,

screenshots showing the EnergyTrace++ power traces before establishing the connection and after terminating the connection are exactly the same which is attached here. 

Actually I have tried using fluke multimeter or Nordic's power profile kit to measure the current consumption, it got the same result. that is a 1uA before the connection and 1.4uA after terminating the connection.

Do you have any idea how to see the problems? Thank you.

Hi,

The ask was to provide power traces a bit like the ones presented below. This way we can observe the timing and power consumption at specific times.

If you provide such traces, I can indicate where to specific look. You can also consider provide the raw data as requested before.

(Note: the EnergyTrace screenshot presented here is for illustration only, it does not present the power consumption of a CC26xx device)

Best regards,

energyTrace.zipAttached is the energy trace before and after the connection, would you please take a look? Thank you very much.

Hi,

I am afraid the files .profxml you provided do not contain the requested information.

Clément said:

The ask was to provide power traces a bit like the ones presented below. This way we can observe the timing and power consumption at specific times.

If you provide such traces, I can indicate where to specific look. You can also consider provide the raw data as requested before.

Best regards,

before.zipafter.zipI think the raw data was not included last time. Now, attached is the energy trace before and after the connection, would you please take a look? Thank you very much.