CPU low-power-consumption standby method and medium

The invention discloses a CPU low-power-consumption standby method and a medium, and the method comprises the steps: a CPU IDLE module is configured before a CPU lowers a system clock and enters a WFI state; in a standby state, the CPU IDLE module turns off a CPU power supply according to configurat...

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Bibliographic Details
Main Authors MAI JIANZHANG, LI YANGTAO
Format Patent
LanguageChinese
English
Published 01.10.2021
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention discloses a CPU low-power-consumption standby method and a medium, and the method comprises the steps: a CPU IDLE module is configured before a CPU lowers a system clock and enters a WFI state; in a standby state, the CPU IDLE module turns off a CPU power supply according to configuration; when the wake-up source arrives, the CPU is powered on by the CPUIDLE module; and after the CPU IDLE module turns on the power supply of the CPU, the CPU executes the SRAM to recover the code. The power consumption of the CPU during standby is further reduced through the CPUIDLE module, and green and environment-friendly effects are truly achieved. 本发明公开了一种CPU低功耗待机的方法及介质，其中方法包括：在CPU降低系统时钟，进入WFI状态前，配置CPUIDLE模块；待机时，所述CPUIDLE模块根据配置关闭CPU电源；唤醒源到来时，所述CPUIDLE模块将CPU上电；所述CPUIDLE模块打开CPU电源后，CPU执行SRAM恢复代码。本发明通过CPUIDLE模块进一步降低待机时CPU的功耗，真正实现绿色环保。
Bibliography:Application Number: CN202110694023