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Method for updating firmware of optical disk system

A firmware and CD-ROM technology, applied in memory systems, software engineering design, instruments, etc., can solve problems such as unknown execution results and the inability of the microprocessor 204 to execute correctly

Inactive Publication Date: 2007-05-30
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the microprocessor 204 executes the firmware instructions located in the problem area 260, unknown execution results may occur, and the microprocessor 204 may not execute correctly

Method used

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  • Method for updating firmware of optical disk system
  • Method for updating firmware of optical disk system
  • Method for updating firmware of optical disk system

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Embodiment Construction

[0033] Please refer to FIG. 4 , which is a block diagram of the optical disc system of the present invention. Except that a new control circuit 500 is added to the optical disc system in FIG. 4 , the optical disc system in FIG. 4 is completely the same as that in FIG. 1 . The control circuit 500 is connected to the microprocessor 204 to assist in controlling the operation of the microprocessor 204, the details of which will be fully explained later. Since all other constituent elements are the same, the reference numbers used in FIG. 4 and in the ensuing description will be the same as those used in FIG. 1 .

[0034] Please refer to FIG. 5 , which is a flowchart of a method for updating firmware in an optical disc system according to the present invention. Please note that except for a new step 408, all steps in this flowchart are the same as in the prior art method in FIG. 2 .

[0035] Step 400: Determine whether the updated firmware exists on the optical disc 100 or an ext...

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Abstract

A method for updating a firmware in optical disc system includes such steps as fetch a new program and a software updating routine, storing said program and soft updeting routine respectively in the first and the second buffer, executing said soft up dating routine, writing said new program to the firmware, and changing the program counter of microprocessor for executing the new program.

Description

technical field [0001] The invention relates to an optical disc system, in particular to a method for updating the firmware of the optical disc system in an optical disc system. Background technique [0002] Recently, the optical disc system has been significantly popularized in use. Due to the continuous development of the optical disc system, various improvement methods are also continuously produced. However, these improvements are not limited to the development of new optical disc systems, and sometimes it may be possible to increase the functions of the existing optical disc systems through a firmware update, or improve the original functions of the existing optical disc systems. For example, in US Pat. No. 6,170,043, "Method for controlling an optic disk", Hu discloses a known device and method for updating firmware in an optical disk system. In the prior art, the updated firmware data is stored on an optical disc or on a computer, and the devices in the prior art can...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/00G06F9/445
CPCG06F8/665G06F8/654
Inventor 陈炳盛郭弘政
Owner MEDIATEK INC