Program upgrading device and upgrading method based on LVDS signal line

Abstract

The invention discloses a program upgrading device and upgrading method based on an LVDS signal line. The device comprises a signal generating device and a signal receiving device built in a to-be-upgraded object, and the signal generating device is connected with the signal receiving device though the LVDS signal line; the signal generating device is used for receiving an upgrading file and converting a control signal of the upgrading file on the LVDS signal line into image data when entering a frame blanking area, calculating the number of data that can be sent by each frame blanking area, dividing the image data in the upgrading file into multiple segments according to the number of the data, and sending the segments of data of the upgrading file to the signal receiving device through the LVDS signal line in sequence by using each frame blanking area; and the signal receiving device is used for integrating the received segments of data of the upgrading file to obtain a complete upgrading file, and performing a program upgrading operation according to the upgrading file. According to the program upgrading device disclosed by the invention, the program upgrading generates no influence to the normal image display of the equipment and has the advantages of high upgrading speed and high stability and high reliability.

Description

technical field [0001] The invention belongs to the technical field of LVDS signal source communication, and more specifically relates to a program upgrade device and an upgrade method based on LVDS signal lines. Background technique [0002] The expansion box is to convert the LVDS video signal output by the signal generator PG into the video signal required by the LCD module, such as DP, VbyOne signal, so that the signal generator PG can adapt to different types of LCD modules and reduce the need for signal source needs. Generally during use, if you find an error in the program of the expansion box or the LCD module cannot display normally, or the LCD module needs other different types of video signals to meet the display needs, you need to upgrade the program in the expansion box. [0003] The existing upgrade methods are mainly carried out through communication upgrade interfaces such as IIC / SPI / RS484 / RS232, or using LVDS video signal lines to upgrade the program in the...

AI Technical Summary

Problems solved by technology

[0003] The existing upgrade methods are mainly carried out through communication upgrade interfaces such as IIC / SPI / RS484 / RS232, or using LVDS video signal lines to upgrade the program in the expansion box, but there are the following disadvantages: LVDS video signal lines are mainly used to transmit display images and data, using the LVDS video signal line to transmit the upgrade file will occupy the transmission bandwidth of the display image and data, so the expansion box cannot perform normal image display during the program upgrade process, and the expansion box can only work normally after the upgrade is completed

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