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Device and method for controlling CPU power consumption under Feiteng platform

A control device and power consumption technology, which is applied in the direction of instruments, electrical digital data processing, digital data processing components, etc., can solve the problem that the number of PWM power supply phases cannot be adjusted, and achieve low BOM cost, simple hardware circuit design, and easy maintenance Effect

Inactive Publication Date: 2017-06-13
湖南长城银河科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the domestic Phytium processor does not have an independent SVID bus and APS (Active Phase Switching active phase change switch) mode mechanism, and cannot adjust the number of PWM power supply phases according to the CPU voltage.

Method used

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  • Device and method for controlling CPU power consumption under Feiteng platform
  • Device and method for controlling CPU power consumption under Feiteng platform

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Embodiment Construction

[0023] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application The features in the embodiments and the embodiments can be combined with each other.

[0024] The invention is divided into two parts: hardware design and software design: three GPIO (General Purpose Input Output) interfaces are established between the Feiteng processor and the programmable controller in the hardware design. The processor will be in standby, sleep and The high load status is sent to the programmable controller through GPIO. After the programmable controller analyzes the GPIO status of the CPU, it controls the analog switch circuit through its own GPIO pins to achieve a suitable CPU operating voltage; in software design, first In t...

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Abstract

The invention discloses a device for controlling the CPU power consumption under a Feiteng platform. The device comprises a Feiteng processor (1) configured with three CPIO interfaces, a programmable controller (2) connected with the Feiteng processor (1) through the three CPIO interfaces, an analog switch circuit (3) including three switch channels in serial connection with resistors and a power supply controller (4), wherein the Feiteng processor (1) sends standby, dormant and high-load states to the programmable controller (2) through the CPIO interfaces, the programmable controller (2) controls on and off of the three switch channels, three feedback voltage divider resistors of the power supply controller (4) correspond to the resistors in serial connection with three switch channels respectively, and the power supply controller (4) correspondingly outputs predetermined voltages according to resistance values. Control of the CPU power consumption is achieved on the Feiteng platform, the hardware circuit design is simple, the BOM cost is low, the software code development amount of the programmable controller is small, and the device is easy to maintain. The invention further provides a CPU power consumption control method.

Description

Technical field [0001] The invention belongs to the technical field of CPU power consumption control, and specifically relates to a CPU power consumption control device and method under a Feiteng platform. Background technique [0002] Traditional portable notebooks, all-in-ones, desktops, etc. generally use Intel's technical architecture. It has a set of mature application solutions for voltage regulation in standby, sleep, and high-load environments. Starting from the 6 series platform, Intel has introduced the VR12 (Voltage Regulator) specification, that is, the SVID (Serial Voltage Identification) mode. The voltage of the CPU is detected through the CPU's own SVID bus, that is, the CPU is used as the master device of PMBUS (PowerManagement Bus). The SVID module transmits to the VRM (Voltage Regulator Module) chip through the DATA (data) and CLK (clock) bus. Place a call and wait for the VRM chip to read the voltage setting information. When the VRM chip responds to the call...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32
CPCG06F1/3296
Inventor 周炼封立平李斌辉邓秋连张晓明赵辉吴建春
Owner 湖南长城银河科技有限公司
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