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CC2340R5MODA: zephyr ga known issues clarification

Munan Xu
Expert 5850 points

Part Number: CC2340R5MODA

Hello,

My customer wanted a little more clarification on a few of the known issues in the Zephyr 1.0 GA for CC2340:

  • For cc23xx boards, MCUBoot cannot be used with CONFIG_PM.
    • Does this mean just the MCUBoot application cannot be built with CONFIG_PM? Or does it have implications on the main application as well?
  • ZEPHYR-250: CC23XX/CC27XX SOC prevents idle power mode during peripheral operation
    • Can you clarify what is meant by operation? Is this just when the peripheral is actively transmitting/ receiving the device stays in active mode, and will resume sleep once whatever is being transmitted/ received is complete? 
  • Zephyr-625: LFOSC and EXTLF are not supported
    • What clock source does the device use to derive the LFCLK then? Does it only support an LFXT, or is it using the HFXT to derive a low frequency clock?

Munan

  • 0
    TI__Mastermind 44810 points

    Hi Munan,

    Apologies for the delay. Let me loop in the right expert to support.

    Best Regards,

    Jan

  • 0 in reply to Jan
    TI__Expert 5850 points

    Thanks Jan, 

    Just wanted to re-ping on this since customer is still asking for some clarifications.

    Munan

  • 0 in reply to Munan Xu
    TI__Expert 7380 points

    Hey Munan,

    I'm sorry for the delay, i was trying to get a status on all these issues.

    Munan Xu said:
    For cc23xx boards, MCUBoot cannot be used with CONFIG_PM

    This is an issue that has been resolved already I believe. I'm currently working with the team on confirming that we can remove it from the known limitation.

    Munan Xu said:
    ZEPHYR-250: CC23XX/CC27XX SOC prevents idle power mode during peripheral operation

    This essentially means that when the peripheral is "open", the SOC will be prevented from going into idle (which eventually causes the device to go into standby)

    Munan Xu said:
    Zephyr-625: LFOSC and EXTLF are not supported

    It will be using LFXT.

    I hope this answers your questions! Again, sorry for the delay.

    Best Regards,

    Tarek D