SWRZ135A December   2023  – August 2024 CC2340R2

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Advisories Matrix
  5. 2Nomenclature, Package Symbolization, and Revision Identification
    1. 2.1 Device and Development Support-Tool Nomenclature
    2. 2.2 Devices Supported
    3. 2.3 Package Symbolization and Revision Identification
  6. 3Advisories
    1. 3.1 SPI_04
    2. 3.2 ADC_08
    3. 3.3 ADC_09
    4. 3.4 BATMON_01
    5. 3.5 CLK_01
    6. 3.6 I2C_01
    7. 3.7 GPIO_01
  7. 4Revision History

3.5 CLK_01

Bluetooth Low Energy link can not be maintained when using LFOSC only

Revisions Affected

A

Description

A small percentage of devices do not maintain a Bluetooth Low Energy link if LFOSC is used as a sleep clock due to random timing error above 500 PPM.

Workaround

A software workaround are available in the SimpleLink F3 SDK >= 8.10.xx to allow devices to operate in the broadcaster, observer and peripheral roles when using LFOSC only. When the software workaround is used, the device can see short periods of operation with reduced throughput and increased power consumption when the timing error occurs. This software workaround does not support the central role. To completely avoid the consequences of increased power consumption and connection throughput or support the Central role, TI recommends using an external 32.768kHz crystal.