Method and device for waking up MCU

Method and device for waking up MCU

  • CN 105,050,115 B
  • Filed: 06/29/2015
  • Issued: 06/02/2020
  • Est. Priority Date: 06/29/2015
  • Status: Active Grant
First Claim
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1. A method for waking up an MCU, which is applied to a first intelligent device with a Wi-Fi module, comprises the following steps:

  • when a wireless fidelity Wi-Fi chip is in a low power consumption mode, receiving at least one wireless message sent by a second intelligent device when the second intelligent device detects an event triggering data sending to a first intelligent device and determines that a Wi-Fi module of the first intelligent device is in a dormant state, wherein the wireless message belongs to a special message in the low power consumption mode;

    determining whether the wireless message belongs to a designated wake-up message or not by matching each field in the wireless message with a generation rule, wherein the generation rule of the wake-up message is preset in the first intelligent device, and the designated wake-up message is a wireless message conforming to the generation rule;

    if the wireless message is detected to belong to the designated wake-up message, sending an interrupt wake-up signal to the MCU chip to wake up the MCU chip through a wake-up pin connected between the Wi-Fi chip and the MCU chip;

    the MCU chip and the Wi-Fi chip belong to the same Wi-Fi module.

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