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WICED Smart Bluetooth

New Contributor II

Hello,

I am facing challenge in achieving Sleep Mode.

In our code, LPM is initialized and low power query call-back is also register.

Issue is lowpowerquery call back is continously called and chipset doensot seems to be entering SLEEP mode.

It is expected to sleep for 1second, based on low power query call back return value.

Attached source file for given scenario. and trace dump

00:24:41 - create()

00:24:41 - 1.00

00:24:41 - 0018

00:24:41 - 020300002a

00:24:41 - 636f6f6b705f6c706d

00:24:41 - 020500012a

00:24:41 - 0003

00:24:41 - 0118

00:24:41 - 0d

00:24:41 - 0d00

00:24:41 - 02010503030118020a04

00:24:41 - 0a09636f6f6b705f6c706d

00:24:41 Trace Decoding Error - Could not find line number 314

00:24:41 Attribute bytes

00:24:41 Handle: 0002

00:24:41 Perm : 0002

00:24:41 Len, Max Len : 0005, 0005

00:24:41 UUID : 2803

00:24:41 Attribute bytes

00:24:41 Handle: 0003

00:24:41 Perm : 0000

00:24:41 Len, Max Len : 0009, 0009

00:24:41 UUID : 2A00

00:24:41 Attribute bytes

00:24:41 Handle: 0004

00:24:41 Perm : 0002

00:24:41 Len, Max Len : 0005, 0005

00:24:41 UUID : 2803

00:24:41 Attribute bytes

00:24:41 Handle: 0005

00:24:41 Perm : 0000

00:24:41 Len, Max Len : 0002, 0002

00:24:41 UUID : 2A01

00:24:41 Attribute bytes

00:24:41 Handle: 0006

00:24:41 Perm : 0002

00:24:41 Len, Max Len : 0002, 0002

00:24:41 UUID : 2800

00:24:41 Attribute bytes

00:24:41 Gatt DB Dump complete

00:24:41 bd_addr[5:2] = 20 73 6A 11

00:24:41 bd_addr[1:0] = 00 00

00:24:41 GPIO 0001 (11)

00:24:41 GPIO_WP:OFF= 00

00:24:41 Battery level: 0/100

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

00:24:42 - LPM 0

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1 Solution
New Contributor II

Issue is the return value should be in terms of usec at line 248.

Anything less than 3.5msec is rejected and chip doesnot enter sleep.

So return 1000000 for 1 sec Sleep.

View solution in original post

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3 Replies
Employee

Are you using a module to test your code? If yes, you will want to do the crystal warm up fix. And you may want to set a non zero value to your finer timer, such as 50.

Or can you return 0 instead of 1000 at line 248 in your app code?

I also suggest that you develop your sleep/deep_sleep using established coding from sample apps like wiced_sense. I will avoid

the wiced bluetooth designer.

New Contributor II

Issue is the return value should be in terms of usec at line 248.

Anything less than 3.5msec is rejected and chip doesnot enter sleep.

So return 1000000 for 1 sec Sleep.

View solution in original post

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Employee

From line 796 of the wiced sense code, it spelt out how to enter sleep mode.