Rapid and effective Android Sparse format mirror image downloading method
A technology of mirroring and format, applied in data conversion, instruments, electrical digital data processing, etc., can solve problems such as hardware performance limitations, and achieve the effect of saving download time, improving download efficiency, and fast hardware configuration requirements.
Active Publication Date: 2016-11-23
南通宁竞信息科技有限公司
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[0031] The present invention overcomes the deficiencies of the existing Android image download methods, and proposes a fast and effective Android Sparse format image download method, which solves the limitations of the traditional Android image download method on the performance of the host and device hardware, and greatly saves download time and improves download efficiency
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[0058] A fast and effective Android Sparse format image download method proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0059] Such as image 3 Shown, a kind of fast and effective Android Sparse format image downloading method described in the present invention, concrete steps are as follows:
[0060] S301: Store the image on the hard disk of the host, and the System image is in Sparse format, assuming that the size is 1.0GB;
[0061]S302: Use the fastboot command to divide the system image into several blocks; for a system image with a size of 1.0GB, divide the system image according to the size of 300M to obtain four blocks, block 1, block 2, block 3, and block 4, and the divided The sizes of block 1, block 2, block 3, and block 4 are 288M, 312M, 294M, and 130M respectively;
[0062] S303: Divide each block into several packages again; according to the size of the block in S302, divide block 1 int...
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The invention discloses a rapid and effective Android Sparse format mirror image downloading method. The method comprises the following steps that a Sparse format mirror image is stored in a host hard disk; the mirror image is divided into a plurality of blocks; each block is divided into a plurality of packets; the first packet of the block 1 is loaded to a host internal storage and transmitted to an equipment side through a USB, the equipment side reads data, the data is written in an RAM, and the other packets of the block 1 are subjected to similar operation in sequence; whether the block 1 is in a Sparse format or not is judged, and if yes, the block 1 is stored in an FIFO queue; writing starting operation is executed, the block 1 is started to be written in an EMMC, and meanwhile the equipment side sends an ACK value to a host; the host receives the ACK value, and the ACK value is stored in an FIFO queue according to the similar steps; the progress of writing the mirror image in the EMMC is monitored by host progress of the equipment side, and the blocks are written in in sequence; after all the mirror image blocks are written in, an OK ACK value is sent to the host; the host receives the OK ACK value, and downloading is finished. According to the method, the defects of a traditional Android mirror image downloading method are overcome, and high Android mirror image downloading speed is achieved under a low hardware configuration need.
Description
technical field [0001] The invention relates to the field of computer data communication, and more specifically relates to a fast and effective Android Sparse image download method. Background technique [0002] Data transmission is completed by the cooperation between the software on the host and the device. Android device images are generally divided into Bootloader / BIOS, Boot, System, Modem, User, etc. Among them, the size of the System generally exceeds 1GB, and the download of the System image has high requirements on the hardware performance of devices such as hosts and mobile phones. At the same time, taking into account the needs of users, the requirements on the speed of data transmission are also high, that is, to achieve fast downloading. [0003] There are mainly two traditional methods for downloading Android images, which are described in detail as follows: [0004] Method 1: If figure 1 As shown, if the System image is a compressed zip package, the specific ...
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IPC IPC(8): G06F5/06
Inventor 许桢英洪红朱建栋张琦许冉冉
Owner 南通宁竞信息科技有限公司