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MSP432E411Y: Sleep\ Deep Sleep mode时外设是否工作的设置

Part Number: MSP432E411Y

尊敬的工程师:

您好,Sleep\ Deep Sleep mode时外设是否工作的设置在哪里,比如M4F的CPU sleep后,我还想保持QEI这个模块继续工作,是不是不受影响,谢谢!

祝您好心情。

  • 您可以看一下TRM的 1.8 Power Management

    https://www.ti.com.cn/cn/lit/ug/slau723a/slau723a.pdf 

    The Cortex-M4F processor sleep modes reduce power consumption:

    • Sleep mode stops the processor clock.

    • Deep-sleep mode stops the system clock and switches off the PLL and flash memory.

    以及 4.1.6 System Control Four levels of operation are defined for the microcontroller:

    • Sleep mode (see Section 4.1.6.2)

    • Deep-sleep mode (see Section 4.1.6.3)

    Peripherals are clocked if enabled in the peripheral-specific SCGC registers when automatic clock gating is enabled or in the peripheral-specific RCGC registers when automatic clock gating is disabled

    如 4.2.121 SCGCQEI Register (Offset = 0x744) [reset = 0x0]

    QEI Module 0 Sleep Mode Clock Gating Control

    0x0 = QEI module 0 is disabled in sleep mode.

    0x1 = Enable and provide a clock to QEI module 0 in sleep mode.

    您可以查找下对应外设的SCGC寄存器

  • 谢谢Yang工的解答,非常感谢!

  • 很高兴能帮到您