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Method and system for converting frequency of internal storage

A memory and frequency conversion module technology, applied in the direction of digital output to display equipment, instruments, electrical digital data processing, etc., can solve problems such as abnormal display, achieve multi-time, increase time, and solve the effect of abnormal display

Inactive Publication Date: 2015-01-28
FUZHOU ROCKCHIP SEMICON
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for memory frequency conversion, which solves the problem of abnormal display during memory frequency conversion during the blanking period

Method used

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  • Method and system for converting frequency of internal storage
  • Method and system for converting frequency of internal storage

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Embodiment Construction

[0033] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0034] see figure 1 , this embodiment discloses a memory frequency conversion method, which can be applied to a processor and used to solve the problem of abnormal display occurring during memory frequency conversion. Among them, the processor can be a device with processing functions such as CPU and MCU; the display screen can be various display screens such as LCD, LED, and CRT; the memory can be SDRAM, DDR SDRAM, RDRAM, etc.

[0035] The method comprises the following steps: the processor converts the frequency of the memory during the blanking period of the display screen, the blanking period refers to the time required for the display screen to start displaying another picture or area, and the frequency conversion is to change the fre...

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Abstract

The invention discloses a method and system for converting a frequency of an internal storage. The invention provides a method for converting the frequency of the internal storage. The method comprises the following steps: performing frequency conversion on the internal storage of a processor in a blanking period of a display screen, and when the time required by the frequency conversion of the internal storage is greater than the time in the blanking period, reducing a display data transmission clock frequency of the display screen in the blanking period. Thus, the problem that the internal storage always displays abnormally during frequency conversion when the blanking period of the display screen is shortened in the prior art is solved.

Description

technical field [0001] The invention relates to the field of memory frequency conversion, in particular to a memory frequency conversion method and system. Background technique [0002] When the memory (DDR) is running, the frequency has a great impact on the power consumption. In order to optimize the system power consumption, the memory frequency must be set according to the actual bandwidth requirements, that is, the frequency of the memory must be converted. [0003] However, because the display principle of the LCD monitor needs to refresh the memory regularly, and because the resolution of the current LCD is relatively large, the bandwidth requirement of the memory is relatively high. Therefore, if the data is terminated due to the frequency conversion of the memory during the refresh process, the LCD will A display exception will occur. [0004] In the current public technology, it is proposed to use the blanking period of the LCD display to perform memory frequency ...

Claims

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Application Information

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IPC IPC(8): G06F3/14G06F13/16
CPCG06F3/14
Inventor 陈亮谢修鑫黄涛
Owner FUZHOU ROCKCHIP SEMICON
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