Memory card dilation detection method and card reader with dilation detection function

Abstract

The invention discloses a memory card dilation detection method. Aiming at the conventional memory card dilation method, three steps of comparing the memory capacity of a section and the memory capacity of a register, writing and reading the data of over-range addresses and writing and reading data of random addresses in a high address range are carried out to detect whether a memory card is needed to be subjected to dilation or not; when the three steps are normal, the memory card is determined to be normal and non-dilated, so that correct effective dilation detection for the memory card is realized. The invention also provides a card reader with the dilation detection function, so that the independent detection without the use of main machines can be realized and the dilation detection is more convenient.

Description

technical field [0001] The invention belongs to the technical field of memory cards, and more specifically relates to a memory card capacity expansion detection method and a card reader with capacity expansion detection function. Background technique [0002] Memory card expansion is a profit-making method often used by counterfeit memory card manufacturers, but there is currently no independent device for detecting the quality of memory cards on the market. Consumers can only use some software on the Windows operating system to identify the quality of memory cards. , the dependence on the operating system is strong, and the operation process is slow, which can easily lead to crashes; the test results can only be obtained after purchasing the memory card, and the test is of little significance. Most of the detection software currently on the market scans and detects in a certain increasing order. In this way, it gives some unscrupulous merchants the opportunity to use this i...

AI Technical Summary

Problems solved by technology

[0002] Memory card expansion is a profit-making method often used by counterfeit memory card manufacturers, but there is currently no independent device for detecting the quality of memory cards on the market. Consumers can only use some software on the Windows operating system to identify the quality of memory cards. , has a strong dependence on the operating system, and the operation process is slow, which can easily lead to crashes; the test results can only be obtained after purchasing the memory card, and the test is of little significance

Most of the detection software currently on the market scans and detects in a certain increasing order. In this way, it gives some unscrupulous merchants the opportunity to use this increasing order to make expansion memory cards and use the reputation of large companies to sell inferior expansion memory cards.

[0003] At the same time, during the use of the memory card, due to improper use, the memory card will be damaged to varying degrees. When such a memory card is formatted, the computer will become slow to respond, especially when there is a problem with the file system of the memory card. , the computer may appear "stuck" phenomenon, and "Window cannot complete the format" problem

At present, the card readers used by everyone only have the function of reading and writing, and there is a lot of room for appreciation

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