Method for running high-definition multimedia interface (HDMI) display initialization code

An initialization code and initialization technology, which is applied in the direction of program loading/starting, program control devices, etc., can solve problems such as long total time, prolonged total time, and poor product performance

Inactive Publication Date: 2012-10-03
SHANGHAI DAYU ELECTRONICS TECH
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  • Abstract
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Problems solved by technology

[0007] Although the above method has solved the problem of the response speed of the HDMI output image, but at the same time there is a new problem, that is, the total time from booting to the normal use of the product is lengthened (the total time has exceeded 1 minute), which gives people I feel that the performance of the product is r

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  • Method for running high-definition multimedia interface (HDMI) display initialization code
  • Method for running high-definition multimedia interface (HDMI) display initialization code
  • Method for running high-definition multimedia interface (HDMI) display initialization code

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but the following embodiments are not intended to limit the present invention.

[0033] image 3 A flow chart of a method for running HDMI display initialization codes of the present invention; Figure 4 It is a flowchart of further steps of step S2 of the present invention.

[0034] see image 3 and Figure 4 , a method of running HDMI display initialization code, comprising the steps of:

[0035] S1: The device is powered on and starts running; (The device is a DVR device, that is, a hard disk video recorder, and the HDMI control chip model is mdin240.)

[0036] S2: Transplant the upper half of the HDMI control chip code to the uboot code, and execute the initialization code of the upper half of the HDMI control chip in uboot, and output the ColorBar image, wherein, transplant the upper half of the HDMI control chip code to uboot The cod...

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Abstract

A method for running a high-definition multimedia interface (HDMI) display initialization code includes the steps that S1, a device is powered on to start to run; S2, an upper half portion of a HDMI control chip code is ported to a uboot code, an initialization code of upper half portion of the HDMI control chip code is executed at the position of the uboot, and an image is output; S3, a linuxkernel code is run; S4, the HDMI control chip code which is not run in the S2 is set as a lower half portion of the HDMI control chip code, and the lower half portion of the HDMI control chip code is run; and S5, an application program code is run. By means of the method, the response speed of HDMI output image can be increased, and further total time of program code execution is not prolonged.

Description

technical field [0001] The invention relates to a code loading technology, in particular to a method for running HDMI display initialization codes, which can achieve fast response of HDMI output images and does not lengthen the total execution time of program codes. [0002] Background technique [0003] At present, most HDMI displays are controlled by an independent chip, which requires an independent initialization code. Generally, these codes are relatively large and take a long time to run. [0004] Now general stand-alone initialization code runs like figure 1 As shown, the operation steps are as follows: 1. The device is powered on; 2. Enter the bootload program code; 3. Kernel code; 4. HDMI image output control chip code; 5. Application program code. [0005] An obvious disadvantage of this method is that when the user turns on the device, it takes a long time (about 40 seconds) to see the HDMI output image, which makes people feel that the response speed of this pr...

Claims

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Application Information

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IPC IPC(8): G06F9/445
Inventor 吴仲金
Owner SHANGHAI DAYU ELECTRONICS TECH
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