Memory card management device and method

Abstract

The embodiment of the invention provides a memory card management device and method. The device comprises a power-on module which carries out the initial power-on of a memory card, and carries out thepower-on of the memory card again when a re-power-on signal is received; an initialization module which initializes the read-write port and sets the read-write speed to be a first preset speed afterbeing powered on, and initializes the read-write port and sets the read-write speed to be a second preset speed again when receiving the state abnormal signal, and the first preset speed is higher than the second preset speed; a data read-write module which performs data read-write interaction with the memory card according to the first preset speed and the second preset speed; a state judgment module which is used for judging whether the read-write states of the memory card at the first preset speed and the second preset speed are normal or not in real time and correspondingly outputting a state abnormal signal and a re-electrifying signal; and an abnormity alarm module which is used for correspondingly carrying out memory card abnormity alarm when the real-time frequency of receiving thestate abnormity signal reaches a preset threshold value. According to the device, the condition of misjudgment as abnormal can be avoided.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of memory cards, and in particular, to a memory card management device and method. Background technique [0002] In various mobile terminals such as driving recorders, memory cards are mostly installed to save relevant data information. However, the performance stability of the existing memory card is relatively poor, and it often happens that the mobile terminal fails to recognize the memory card and fails to interact with the memory card data. Therefore, a memory card management method for the mobile terminal emerges as the times require. [0003] The existing memory card management method is usually that the mobile terminal first initializes the read-write port of the memory card through internal software and configures related parameters (for example: read-write speed), and then performs data read-write interaction with the memory card, and during the read-write process Judging whe...

AI Technical Summary

Problems solved by technology

However, the above-mentioned method initializes the memory card through the internal software, and it is impossible for the memory card to recover when the power is turned on again. Moreover, when the memory card works in a relatively harsh environment (for example: low temperature) or after the memory card is used for a long time, The read and write performance of the memory card will drop significantly. If you still read and write data at the original read and write speed and judge the data read and write status of the memory card, it will obviously be judged as abnormal. Therefore, the above method will cause misjudgment

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