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DDR frequency switching method and device

A technology of frequency switching and frequency, which is applied in the computer field, can solve the problems of frame dropping, inability to adapt to actual application scenarios, and waste of power consumption, etc., and achieve the effect of taking into account power consumption control

Pending Publication Date: 2022-05-17
ALLWINNER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patented technology allows for flexibility by determining which specific frequencies are being used based on factors like how frequently it operates or whether there's an issue with its own speed. This helps reduce energy usage while still providing effective work capabilities.

Problems solved by technology

This patented describes two technical problem addressed in this patents: improving efficient use of data bus bandwidth while maintaining good work performance on both double rate SDRAMs and other types of memories used in electronic systems such as computer hard disk drives or digital cameras.

Method used

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  • DDR frequency switching method and device
  • DDR frequency switching method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0084] see figure 1 , figure 1 It is a schematic flowchart of a DDR frequency switching method disclosed in an embodiment of the present invention. Such as figure 1 As shown, the switching method of the DDR frequency may include the following operations:

[0085] 101. The DDR frequency switching device determines the required working frequency of the DDR according to the running condition of the DDR.

[0086] In an optional embodiment, the DDR frequency switching device determines the required operating frequency of the DDR according to the operation of the DDR, including:

[0087] The DDR frequency switching device determines the required operating frequency of the DDR according to the data access to the DDR on the system bus, or,

[0088] The DDR frequency switching device determines the target working state of the DDR;

[0089] The DDR frequency switching device determines the required operating frequency corresponding to the target operating state from the predetermin...

Embodiment 2

[0118] see figure 2 , figure 2 It is a schematic flowchart of another DDR frequency switching method disclosed in the embodiment of the present invention. Such as figure 2 As shown, the switching method of the DDR frequency may include the following operations:

[0119] 201. The DDR frequency switching device determines the required working frequency of the DDR according to the running condition of the DDR.

[0120] 202. The DDR frequency switching device judges whether the current working frequency of the DDR matches the required working frequency. When the judgment result of step 202 is no, step 203 may be triggered, and when the judgment result of step 202 is yes, this process may end, or step 202 or step 201 may be executed again.

[0121] For the specific description of the above-mentioned step 201 and the above-mentioned step 202, reference may be made to the specific description of the above-mentioned step 101 and the above-mentioned step 102, and details will no...

Embodiment 3

[0154] see image 3 , image 3 It is a schematic structural diagram of a DDR frequency switching device disclosed in an embodiment of the present invention. Such as image 3 As shown, the DDR frequency switching device operates on DDR frequency switching equipment, and the DDR frequency switching device may include:

[0155] Determining module 301, is used for determining the required operating frequency of DDR according to the running situation of DDR;

[0156] Judging module 302, for judging whether the current operating frequency of the DDR matches the required operating frequency;

[0157] The switching module 303 is configured to switch the current working frequency of the DDR to the required working frequency when the judging module 302 judges that the current working frequency of the DDR does not match the required working frequency.

[0158] Visible, implemented image 3 The described DDR frequency switching device first determines the required operating frequency...

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Abstract

The invention discloses a DDR (Double Data Rate) frequency switching method and device, and the method comprises the steps: DDR frequency switching equipment determines the required working frequency of a DDR according to the operation condition of the DDR; the DDR frequency switching equipment judges whether the current working frequency of the DDR is matched with the required working frequency or not; and when it is judged that the current working frequency of the DDR is not matched with the required working frequency, the DDR frequency switching equipment switches the current working frequency of the DDR to the required working frequency. Therefore, according to the invention, the working frequency of the DDR can be flexibly switched according to an actual application scene, so that the power consumption control of the DDR and the working performance of the DDR are considered at the same time.

Description

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Claims

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Application Information

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Owner ALLWINNER TECH CO LTD
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