RTOS/CC2640R2F: software can auto wakeup period 10 ms.

user5292307

Prodigy 150 points

Part Number: CC2640R2F
Other Parts Discussed in Thread: CC2650

Tool/software: TI-RTOS

Hi Sir:

i develope CC2640R2F whith simplelink_cc2640r2_sdk_1_35_00_33 BLE5. i am change it base simple_peripheral.

i hope to enter the state of lowest power consumption.

i open POWER_SAVING Macro define . and module will auto enter sleep.

but, i found a phenomenon.

i expect to get the lowest power, a straight line when i close adv. But actually, i found that the module will automatically wake up once every 10ms. i already close all event.

i don't konw why this is so, please help me.

over 7 years ago

0 Christin Lee over 7 years ago

TI__Guru 56215 points

Hi,

Are you using Launchpad? If yes, the current spikes could be caused by external flash is in standby mode instead of shutdown.

The current consumption looks like the external flash is running.
What you need to do is to called the following to shut it down.
ExtFlash_open();
ExtFlash_close();
The whole procedure is mentioned in this application report.
http://ti.com/lit/pdf/swra478c

0 user5292307 over 7 years ago in reply to Christin Lee

Prodigy 150 points

Hi Sir :

This problem has troubled me for a long time, thank you very much for your help.

i still have problem like this one.

i found that in addition to the current of 10 ms, there is a current of 100ms.

Do you know where this current is generated?

0 Markel Robregado over 7 years ago

Guru 86755 points

Hi,

Are using simple peripheral? Try disabling advertisement.

Christin Lee

ExtFlash_open();
ExtFlash_close();

This might have worked for CC2650 Launchpad. But at several CC2640R2F Launchpad even just bought one it does not work. What works is the SPI External Flash Shutdown code at Pin Shutdown Example Program

-kel

0 user5292307 over 7 years ago in reply to Markel Robregado

Prodigy 150 points

Hi kel:
i already disable advertisement.

0 Christin Lee over 7 years ago in reply to user5292307

TI__Guru 56215 points

Hi,

Can you try to use newest CC2640R2F SDK (simplelink_cc2640r2_sdk_1_50_00_58) and see if you are still seeing the same issue?

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RTOS/CC2640R2F: software can auto wakeup period 10 ms.