Safety uninstalling method of memory, computer program product and electronic apparatus

Abstract

The invention provides a safety uninstalling method of a memory, a computer program product and an electronic apparatus, wherein the safety uninstalling method of the memory executed by a device end provided with the memory comprises the following steps of: a) detecting USB communication protocol operation between the device end and a computer end, judging whether the handshaking is finished, andif so, carrying out step b); b) storing data in the memory, judging whether the data are completely stored, and if so, carrying out step c), otherwise carrying out step d) if the data are still not completely stored after a preset time, wherein the preset time is less than an online allowance time set on the computer end; c) uninstalling the memory, and informing the computer end about mounting; and d) re-starting the USB communication protocol operation with the computer end, and carrying out the steps a)-b) again. The invention saves hardware use so that the device end has enough time to finish the program and store data, thereby safely uninstalling the memory.

Description

technical field [0001] The invention relates to a memory safe unloading method, a computer program product and an electronic device, in particular to a memory safe unloading method using computer program software instead of hardware detection, a computer program product and an electronic device. Background technique [0002] Electronic devices, such as personal navigation devices (PND), mostly use USB connectors as data and power transmission interfaces. At present, many electronic devices on the market can be supported as storage devices due to their flash memory (flash). The system (OS) corresponds to the action of unmounting. Before the OS of the electronic device unloads its memory, it is necessary to end the relevant programs and store the data, otherwise it may cause problems such as data loss or even damage to the sector partition table of the memory. [0003] Therefore, when the USB interface of the electronic device is connected to the computer, in order to preven...

AI Technical Summary

Problems solved by technology

However, in practice, the identity pin of the USB connector often needs to support other functions and cannot be used for connection status detection, resulting in the inability to ensure the safe unloading of the memory of the electronic device

[0004] On the other hand, when the computer detects that a storage device is inserted into its USB slot and the device cannot be recognized beyond a preset connection allowable time, it will send a message that the device cannot be recognized and suspend the operation of the USB communication protocol, causing the storage device to fail to mount

Images