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Part Number: LAUNCHXL-CC1352R1
Tool/software: Code Composer Studio
I'm trying to put my board into LPM with openthread examples but no luck :(
I set sleepy device in temp_sensor example but that gets me down to 4mA min usage and 8.8mA average which is far too much for battery operated device I wanted to build...
Interestingly, changing to "always on" makes it 8mA and 12mA respectively.
Am I missing some other swicth/config option I need to do to get LPM working?
Which SDK are you using?
Is the serial display being used? If yes, this will cause additional current consumption. You can disable it by undefining BOARD_DISPLAY_USE_UART.
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Please provide the LaunchPad jumper configuration and means by which you are measuring the current consumption. http://dev.ti.com/tirex/content/simplelink_cc13x2_26x2_sdk_3_40_00_02/docs/thread/html/thread/application-development.html#low-power-operation
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In reply to Toby Pan:
I'm using latest one - 3.40.00.02.
Undefining BOARD_DISPLAY_USE_UART didn't change anything :(
In reply to Ryan Brown1:
I'm using energytrace and the board itself with no external measurement tools.
Currently I have following jumpers connected:
AFAIK, that setting from the link is automatically done when you choose sleepy in syscfg.
In reply to Marcin Aronowski:
Here are some important instructions for optimizing EnergyTrace results:
http://dev.ti.com/tirex/content/simplelink_cc13x2_26x2_sdk_3_40_00_02/docs/thread/html/energy-trace/energy-trace.html http://dev.ti.com/tirex/explore/node?node=AEtJ.bmCscEghfV1o1roFw__FUz-xrs__LATEST http://www.ti.com/lit/an/swra478d/swra478d.pdf
You will need to have most jumpers disconnected and free run the MCU inside the debugger.
I followed all of those and I'm still getting same numbers :(
Have you joined this temp_sensor to a Thread network when you measure current?If not, can you join it and again measure current?
I have joined and was receiving traffic on my border router while doing the test so everything worked as expected. Besides power usage ;)
One more thing happened. I was playing with the board and now I'm unable to start EnergyTrace. After pressing its button, a popup show with title "detecting EnergyTrace pod" and after it closes nothing happens. Programming and debugging works without any issue.
I think we can close the thread. I removed the project from CCS and imported it again to start from scratch. I'm not sure what happened as with same steps to follow I'm now getting 0.023mA average current
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