Method for reducing CPU power consumption in embedded system
A technology of an embedded system and an implementation method, which is applied in the field of embedded system power consumption control and embedded system, and can solve the problems of high average power consumption of the system, high CPU power consumption, and current consumption.
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[0034] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.
[0035] First define the three states that the CPU is in during system operation, running state, stop state, and sleep state.
[0036] (1) Running state - indicates that the CPU is currently powered and can execute instructions normally. Of course, at this time, there must be a stable Clock provided to the CPU. Compared with the other two states, the CPU consumes the most power at this time.
[0037] (2) Stopped state - the CPU is completely powered off, there is neither Clock nor power supply. Compared with the other two states, the CPU power consumption is the smallest at this time. At this time, all the scenes before the CPU power off are lost. After restarting, you need to reset the previous state. restore the scene.
[0038] (3) Sleep state - SOC is still supplying power to CPU, but not sending Clock to CPU. The CPU power consumption in...
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