An audio processor-based system firmware compression method and its decompression method

Abstract

The invention provides a system firmware compression method and decompression method based on an audio processor. The system firmware compression method comprises the following steps that 1, character string compression coding is conducted on system firmware based on the audio processor, and a compressed functional program segment is obtained, wherein the functional program segment comprises functional programs of all segments corresponding to system firmware data; 2, a character string of a decompression program segment is added, and a decompression program segment which is not decompressed is obtained; 3, the decompression program segment which is not decompressed and the compressed functional program segment are combined, and a software mirror image is generated. According to the system firmware compression method and decompression method based on the audio processor, the problem that a storage medium is too small, and storage is insufficient can be solved, and therefore a small-capacity storage medium can be selected, and the purpose of reducing the cost is achieved; when the software mirror image of the system firmware becomes smaller, the software upgrade time of the whole system firmware is shortened; meanwhile, the probability of an error in the equipment upgrading process is reduced, and the stability of the product is improved.

Description

technical field [0001] The invention relates to a compression method and a decompression method, in particular to a system firmware compression method based on an audio processor and a decompression method thereof. Background technique [0002] In a traditional audio processor system, the developer compiles the software source code into image files through a compiler, such as *.axf, *.hex, *.bin, *.coff, *.ais and other format files, and then This kind of burner burns the image file to the storage medium, and the storage medium includes sd card, nand flash, nor flash, spi flash and MCU internal flash memory, etc., some of which cannot be used to execute codes, such as sd card, Nand flash and spi flash, these components only serve as storage media in the audio processor system. When the system starts, the software image in these storage media needs to be loaded into the memory through the internal startup program, and then jump to the entry address of the software image , th...

AI Technical Summary

Problems solved by technology

When the function of the audio processor becomes more complex, the software image will become huge. At this time, we need to choose a storage medium with a larger storage space, and the time to burn the storage medium will also become longer. In real product development , not only production efficiency, but also system cost must be considered; therefore, it is necessary to find a better solution to solve the above problems instead of accepting such a thankless solution

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