Memory data automatic update method

An automatic update and memory technology, applied in the direction of program loading/starting, TV, color TV components, etc., can solve the problems of maintenance personnel not knowing the update data, production and rework for multiple debugging times, and abnormal display of the whole machine when it is turned on. , to achieve the effect of fast refresh speed, avoiding debugging work and maintenance problems, and short startup judgment time

Inactive Publication Date: 2008-05-14
SICHUAN CHANGHONG ELECTRIC CO LTD
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Problems solved by technology

[0007] When using the above operation method to debug on the production line, it is necessary to use the remote control to set each machine to the factory mode to update the memory data, which will take a lot of debugging time for production and rework; and if the maintenance machine is upgraded , may also face the same problem, especially the external maintenance personnel may not know the need to update the data or how to update, so there will still be some data errors in the software upgrade, resulting in abnormal display when the whole machine is turned on

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  • Memory data automatic update method

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Embodiment Construction

[0017] The memory data automatic update scheme proposed by the present invention is based on the basis of all ordinary circuits, and the software version number after the upgrade is different from that before the upgrade, and the data in the memory can be judged through the program to realize the automatic update of the memory data; through detection As a result, abnormal default states of individual machines can be avoided. The detection method is simple and easy to implement, the judgment time is short, and it is not bound to the function of the chip, so it has high cost performance. The memory commonly used to store real-time data is EEPROM at present.

[0018] This implementation example uses the chip model 24LC16 as the EEPROM. The chip has a storage capacity of 2KByte and is connected to the main chip (model MST718) through a 3.3V serial bus. The process is as follows figure 1 Shown:

[0019] When the software is upgraded, the computer uses the serial 232 bus to connec...

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Abstract

The invention relates to an automatic update method of data, in particular to the data update in a memorizer of a video device. The invention is to resolve the problem of providing a method that the memorizer has automatic update data after the upgrade of the software. The adopted technical proposal comprises the following steps: a. first starting of the whole machine, the version number of the software is stored in the memorizer; b. when the whole machine is started every time, the version number of the software in the default data area is compared with the version number of the software in the memorizer, thus entering into step c if both are identical or entering into step d if both are different; c. the data in the memorizer is read; d the data in the memorizer is renovated immediately and the version number of the software in the default data area is stored in the memorizer. The invention has the advantages of simplicity, easy and reliable operation and greatly improving the production efficiency of product and the eligibility rate of opening the box of whole machine.

Description

technical field [0001] The invention relates to a method for automatically updating data, in particular to updating data in a memory of a video device. Background technique [0002] On TVs, DVD players and other electronic equipment, memory is often used for real-time data storage, so that when the next boot is turned on, the software can quickly recall the information stored when the last shutdown was turned off, such as the volume, the analog value of the image, the boot channel, Data information such as the current frequency enables the whole machine to quickly enter the last designated channel and required analog quantity. [0003] When the whole machine is produced, in order to correct software errors or add related new functions, it is often necessary to re-upgrade the software. [0004] At present, the data update method of this kind of memory after the software upgrade adopts manual control update: [0005] The software upgrade of the memory is usually through the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445H04N5/00
Inventor 梁敏
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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