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CC3235MODASF: Whether the application MCU in this chip support MPU and FPU

Wenhai Liao (6576188)
Prodigy 170 points
Part Number: CC3235MODASF

Hello.

The datasheet shows this WiFi chips include an application MCU and Network processor.

For this Arm Cortex-M4 appliaction MCU, whether it has MPU (Memory Protection Unit) and FPU (Floating Protection Unit)?

If we use a safeRTOS which is support Arm Cortex-M4 with MPU+FPU, whether such safeRTOS can be used in CC3235 application MCU?

Thank you.

  • +1
    Guru 80025 points

    Hi,

    Cortex-M4 application processor inside CC32xx devices does not have MPU and FPU. For IEEE 754 arithmetic you need to use software library.

    TI supports at CC32xx devices FreeRTOS and TI-RTOS. None of them is a certified safe RTOS at CC32xx devices. For information about usage safeRTOS  at CC32xx you should ask manufacturer of that RTOS. WiFi host driver uses POSIX interface, from this reason it can be ported to RTOS which uses POSIX as well.

    More information about TI products focused to functional safety you find here and here.

    Jan

  • 0 in reply to Jan D
    Prodigy 170 points

    Thank you for this inforamtion.