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Method and system for controlling low-speed display screen

A technology of a control method and a control system, which is applied in the field of control methods and control systems of low-speed display screens, can solve problems such as the data transmission rate mismatch between high-speed processors and low-speed display screens, and achieve the effect of saving production costs

Inactive Publication Date: 2010-01-27
SHENZHEN CLOU ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned deficiencies in the prior art, the present invention provides a control method for a low-speed display screen, which solves the problem of mismatching data transmission rates between the high-speed processor and the low-speed display screen

Method used

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  • Method and system for controlling low-speed display screen

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Embodiment Construction

[0020] The invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as figure 1 , a control method for a low-speed display screen, comprising the steps of:

[0022] S1 processor sends the control command information of the display screen to the programmable logic device; S2 the programmable logic device receives and reconstructs the control command information; S3 the control command information reconstructed by the programmable logic device performs the process on the display screen Control; sets the data transfer rate for the display. The control command information reconstructed by the programmable logic device replaces the control command information originally sent by the processor to complete the control of the display screen, thereby controlling the display screen.

[0023] The control command information includes control signal, address and data information.

[0024] In the step S1, the processor...

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Abstract

The invention discloses a method for controlling a low-speed display screen, relating to the field of a low-speed display screen accessed by a high-speed processor. The method comprises the following steps: sending control command information of a display screen to a programmable logic part by a processor; receiving and reconstructing the control command information by the programmable logic part; controlling the display screen by the control command information reconstructed by the programmable logic part; and setting the data transmission rate of the display screen. The invention also discloses a system for controlling the access to a display screen. The invention ensures that the high-speed processor accesses the low-speed display screen without damaging the performance of the processor in data transmission, has no need to increase additional low-speed processors or select programmable logic parts with large numbers of registers / storage cells for preventing a large amount of gush data, reduces production cost, and adjusts the data transmission rate of a serial port according to the need of an LCD display screen to meet the requirement of flexible application.

Description

technical field [0001] The invention relates to the field of high-speed processors accessing low-speed display screens, in particular to a control method and control system for low-speed display screens. Background technique [0002] At present, due to the continuous improvement of the operating frequency of the processor, the data transmission rate of the processor and the interface device is also increased accordingly, which often causes the data transmission rate between the low-speed LCD display and the high-speed processor to mismatch, resulting in the LCD display not being correct. Work. The traditional technology adopts the following two ways to solve the above problems: first, the way of reducing the data transmission rate of the processor and the interface device; second, providing the data buffer unit through the programmable logic device. The first method is more direct and simple to deal with, but it sacrifices the performance of the system. The low data transfe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G06F13/28
Inventor 赵颖
Owner SHENZHEN CLOU ELECTRONICS
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