SWRZ062F September   2015  – December 2022 CC1310

 

  1.   CC1310 SimpleLink™ Ultra-Low-Power Sub-1 GHz Wireless MCU Silicon Revisions B, A
  2.   Trademarks
  3. 1Advisory Matrix
  4. 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
  5. 3Silicon Revision B Advisories
    1.     Advisory 02
    2.     Advisory 03
    3.     Advisory 04
    4.     Advisory 05
    5.     Advisory 06
    6.     Advisory 07
    7.     Advisory 08
    8.     Advisory 09
    9.     Advisory 10
    10.     Advisory 11
    11.     Advisory 12
    12.     Advisory 13
    13.     Advisory 14
    14.     Advisory 15
    15.     Advisory 16
    16.     Advisory 17
    17.     Advisory 18
    18.     Advisory 19
  6. 4Silicon Revision A Advisories
    1.     Advisory 01
  7. 5Revision History

Advisory 03

Reading From Flash While Performing Clock Switching Between the High-Speed Oscillators (XOSC_HF and RCOSC_HF) Will Cause the System to Hang

Revision Affected:

A and B

Details:

The CC1310 device contains five modules that can read from flash independently of each other. These five modules are:

  • Arm® Cortex®-M3
  • RF Core
  • I2S
  • µDMA
  • Crypto (AES module)

Clock switching between XOSC_HF and RCOSC_HF can only be initiated by the Cortex-M3. While the Cortex-M3 performs clock switching, no other modules are allowed to read from the flash. The system will hang if any of the other four modules (RF core, I2S, µDMA, or Crypto) are reading from flash during this period.

Workaround:

The user must make sure that the Cortex-M3 does not perform clock switching while any of the other four modules (RF core, I2S, µDMA, or Crypto) are reading from flash.

SimpleLink SDK (TI-RTOS)

Clock switching from RCOSC_HF to XOSC_HF is done by calling Power_setDependency (XOSC_HF). The user must register a notification to be notified when the clock switching is completed. When the notification function is called by the power driver, the clock switching is completed and it is safe for all modules to read from flash again.

Clock switching from XOSC_HF to RCOSC_HF is done by calling Power_releaseDependency (XOSC_HF). When this function returns, the clock switching is completed and it is safe for all modules to read from flash again. The TI-RTOS radio driver never reads from flash, so it is safe to perform clock switching at all times when using this driver. However, it is up to the user to make sure that no clock switching is performed if the RF Core, I2S, µDMA, or Crypto modules are reading from flash.

No RTOS

Clock switching is performed by calling the driverLib API OSCHfSourceSwitch(). When this function returns, it is safe for all modules to read from flash again. It is up to the user to make sure that no clock switching is performed if the RF core, I2S, µDMA, or Crypto modules are read from flash.