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Power consumption differs between pre-build binary and build from source

Markus Rau46
Prodigy 30 points

Other Parts Discussed in Thread: CC2650STK, CC2640, BLE-STACK

Hi,

my Development environment is CCS 7.3.0.00019 with BLE Stack 2.2.1 and Compiler TI v5.2.6. My device is a Simplelink Sensor TAG (CC2650STK) Rev.1.3.

When I flash the pre-build firmware from the BLE Stack (file cc2650stk_sensortag_rel.hex located in ..\ti\simplelink\ble_sdk_2_02_01_18\examples\hex), the CC2650STK goes in stand by after 3 min. The stand by current settles down between 4 - 8 uA.

When I build the firmware from source:

-  ..\ti\simplelink\ble_sdk_2_02_01_18\examples\cc2650stk\sensortag\ccs\app

-  ..\ti\simplelink\ble_sdk_2_02_01_18\examples\cc2650stk\sensortag\ccs\stack

-  ..\ti\simplelink\ble_sdk_2_02_01_18\examples\util\bim_extflash\cc2640\ccs

the CC2650STK goes also in stand by, but the stand by current  settles down between 176 - 180 uA.

I use the source code and configuration from TI without any changes. Can you please explain the difference between source where the pre-build hex file is based on and the source code from the BLE Stack 2.2.1.

I have read hundreds of posts but I found no solution. I hope you can help.

Thanks

  • 0
    Prodigy 30 points
    I solved my problem. It was my mistake. I forgot to clean up an existing TI-RTOS installation. Now the following configuration has 4 - 8 uA in stand by:
    - Simplelink Sensortag CC2650STK
    - CCS 7.3.0.00019
    - BLE Stack 2.2.1
    - TI-RTOS 2.20.1.08
    - Compiler TI v5.2.6
  • 0 in reply to Markus Rau46
    TI__Expert 5390 points
    Hi Markus,

    Glad to see your problem got sorted out.
    Could you clarify what you meant in your solution?
    Did you clean the project and rebuilt it or was it something else?

    -Sy Su
  • 0 in reply to Sy Su
    Prodigy 30 points

    At first I've uninstalled my old "CCS" and "TI BLE-Stack SDK" installation but forgot to uninstall an existing "TI-RTOS for CC13xx and CC26xx Wireless MCU" installation where i have made some changes in the past. With this configuration I got that high stand by current. Then I uninstall all three packages "CCS", "TI BLE-Stack SDK" and "TI-RTOS for CC13xx and CC26xx Wireless MCU" and install the latest "CCS" with attached "TI-RTOS for CC13xx and CC26xx Wireless MCU" and the latest "TI BLE-Stack SDK". With this configuration I reach the expected standby current.