TWI521349B - Data writing method of mobile electronic device - Google Patents

Description

Portable electronic device data writing method

The invention relates to a data writing method, in particular to a method for improving the speed of writing data of a portable electronic device.

Many portable electronic devices, such as smart phones and lithographic computers, can be accessed through a built-in storage unit, such as a Secure Digital Memory Card (SD card) and/or an embedded multimedia card (Embedded Multi Media). Card, eMMC), etc., to increase the storage space capacity that portable electronic devices can provide.

When the portable electronic device accesses data of an external electronic device such as a computer or another portable electronic device to the storage unit, the portable electronic device must be connected to the external electronic device until the data is completely stored before being interrupted with the external electronic device. connection. The access speed between the conventional portable electronic device and the external electronic device depends on the writing bandwidth and the reaction time of the storage unit itself, and the write bandwidth of the conventional storage unit is still relatively small, so it cannot be realized. High speed access.

While waiting for the transmission of data, the user must maintain the connection state of the portable electronic device and the external electronic device, otherwise the two cannot perform data transmission. Therefore, the user has to wait for the data transmission to be completed before releasing the connection between the portable electronic device and the external electronic device. The state, which causes the user to waste time waiting.

The main purpose of the present invention is to provide a method for writing data of a portable electronic device, which is to improve a conventional portable electronic device connected to a storage unit with a low transmission speed, thereby causing the portable electronic device to access the data of the external electronic device to When the storage unit is stored, the portable electronic device takes a long access time to completely write the data of the external electronic device to the missing storage unit.

In order to achieve the foregoing, the present invention provides a data writing method applicable to a portable electronic device having a system memory and a storage unit, comprising the following steps: a) the portable electronic device executes an application interface and Receiving an external data input request; b) the application interface enables a buffer memory, the external data is stored in the buffer memory; and c) the application interface calls a buffer system program to read the buffer memory, and The external data stored in the buffer memory is written to the storage unit.

Therefore, the present invention shortens the portable electronic device by first writing external data into the buffer memory of the portable electronic device, and then writing the external data stored in the buffer memory to the storage unit through the application interface call buffer system program. The time the device accessed external data.

S10~S17, S20~S25, S30~S34‧‧‧ steps

1 is a flow chart of a preferred embodiment of the present invention; and FIG. 2 is a flow chart showing the construction of a buffer memory in the preferred embodiment of the present invention.

Figure 3 is a flow chart of the call buffer system program of the present invention.

For a detailed description of the technical features of the present invention, the following preferred embodiments are described with reference to the following drawings, wherein: FIG. 1 is a portable electronic device according to a preferred embodiment of the present invention. A data writing method, the portable electronic device has a system memory and a storage unit, and the storage unit is a Secure Digital Memory Card (SD card), an Embedded Multi Media Card (eMMC), or Storage media in other formats to expand the storage capacity of portable electronic devices. The portable electronic device data writing method mainly includes the following steps: First, step S10 is executed, the portable electronic device executes an application interface and receives an input request of an external data, and then proceeds to step S11 to determine whether the portable electronic device has The step of buffering the memory. When the application interface determines that the portable electronic device does not have the buffer memory, the step S20 is executed to set the buffer memory from the system memory, set the storage threshold of the buffer memory, and then execute step S12. Otherwise, step S12 is directly executed to determine whether the buffer memory is enabled. In this embodiment, the buffer memory is preset to be present and enabled in steps S11 and S12, so in the normal case, the process proceeds to step S13 to store the external data to the buffer memory. An exception to this is when the buffer memory has been stopped (i.e., step S15) and then returned to step S12, the buffer memory is not enabled, and the external data is directly written to the storage unit (ie, step S30).

After executing step S13, the process proceeds to step S14, and the application interface determines whether the buffer memory has been filled with external data. When the external data starts to be written into the buffer memory, the application interface starts to determine whether the buffer memory has been filled with external data. When the judgment result is yes, the buffer memory is disabled to access the external data (ie, step S15) and the next step S17 is performed; The buffer memory is still not filled by the external data, and the application interface further determines whether the buffer memory usage capacity is greater than the storage threshold (ie, step S16), and performs the next step when the buffer memory device usage capacity is greater than the storage threshold. S17; otherwise, return to step S13.

In the embodiment, the storage threshold is set to 70% of the overall capacity of the buffer memory, and the application interface is a call buffer system program, so that the buffer system is used when the buffer memory usage capacity reaches 70%. The program starts to write the external data stored in the buffer memory to the storage unit (ie, step S17), so that the buffer memory usage capacity is less than 70%, and the external data can be stored in the buffer memory. In general, when the capacity of the system memory reaches the upper limit, the access speed of the system memory access data is lowered, and the buffer memory has such a problem. Therefore, if the buffer memory usage capacity is too large, such as the buffer memory usage capacity has reached 99%, the buffer memory accesses the external data at a slower speed. Therefore, step S16 can improve the smoothness of the external data stored in the buffer memory.

In step S17, the application interface (Trigger) is a buffer system program. Referring to FIG. 3, after receiving a trigger signal (Trigger Signal) (ie, step S31), the buffer system program determines whether the buffer memory is blank (ie, step S32), and reads when the buffer memory is not blank. The external data stored in the buffer memory is taken (ie, step S33), and the external data is written into the storage unit (ie, step S34); when it is determined that the buffer memory is blank, the process returns to step S31 to wait for the trigger signal. Returning to FIG. 1 , after the buffer system program completes the job in step S17, it returns to step S12 to determine whether to enable the buffer memory. At this time, if the buffer memory has been stopped by step S15, the buffer memory is not enabled. The external data is directly written to the storage unit (ie, step S30). In another case, when the process returns to step S12 through steps S16 and S17, the buffer memory is maintained and the external data is continuously stored in the buffer memory.

It can be seen from the above description that when the portable electronic device is connected to the external electronic device for external data access, the portable electronic device first enables the buffer memory through the application interface after receiving an external data input request, and then The external data is stored in the buffer memory, and finally the application interface call buffer system program writes the external data stored in the buffer memory to the storage unit by the buffer system program.

Since the buffer memory is a storage space set by the system memory, it has a higher write bandwidth than the storage unit. Therefore, the portable electronic device stores the external data to the buffer memory instead of directly writing the external data to the storage unit, so it is not limited by the write bandwidth and reaction time of the storage unit, thereby improving the conventional portable type. When the electronic device accesses the external data of the external electronic device, there is a lack of waiting time, so the present invention can increase the speed at which the external data is written into the portable electronic device.

Therefore, after the external data is completely written into the buffer memory of the portable electronic device, the portable electronic device can interrupt the connection with the external electronic device; the portable electronic device can continue to store the data through the buffer system program. The external information of the buffer memory is written into the storage unit, so as to shorten the connection time between the portable electronic device and the external electronic device.

It is worth mentioning that the buffer memory of the portable electronic device can be fixed or non-fixed, wherein the fixed buffer memory system cannot be changed by setting a fixed storage capacity from the system memory. Instead of a fixed buffer memory, the storage capacity can be flexibly changed according to the size of the external data to be stored. Please refer to FIG. 2 , which is a flow chart of establishing a non-stationary buffer memory for a portable electronic device (ie, a specific step of step S20 in FIG. 1 ), and the execution step is: the portable electronic device obtains an external data. Size data and a system memory The quantity data (step S21) determines whether the system memory capacity is larger than the size of the external data (step S22), and when the system memory volume data is larger than the external data size data, sets a buffer of the same capacity as the external data size data from the system memory. The memory (step S23); when the system memory capacity data is smaller than the external data size data, a buffer memory having the same capacity as the system memory is set from the system memory (step S24). Finally, step S25 is performed to set the storage threshold of the buffer memory.

In summary, the method for writing data of the portable electronic device provided by the present invention shortens the portable electronic device by first storing external data to a buffer memory having a large writing bandwidth among the portable electronic devices. The connection time between the device and the external electronic device is resumed by the buffer system program after the portable electronic device and the external electronic device are interrupted, and the external data in the buffer memory is continuously written into the storage unit. In this way, the time for the user to wait for external data to be transmitted from the external electronic device to the portable electronic device can be effectively shortened.

S10~S17, S20, S30~S34‧‧‧ steps

Claims (10)

A portable electronic device data writing method, the portable electronic device has a system memory and a storage unit having a write bandwidth smaller than the memory of the system, and the method comprises the following steps: a) the portable electronic device performs An application interface and receiving an input request for an external data; b) the application interface enables at least a portion of the system memory as a buffer memory, the external data is stored to the buffer memory; and c) the application The interface call-buffer system program reads the buffer memory and writes the external data stored in the buffer memory to the storage unit. According to the method for writing data of the portable electronic device according to claim 1, the step a) further comprises determining whether the portable electronic device has the buffer memory, and when the application interface determines that the portable electronic device has a buffer In the case of the memory device, step b) is continued. According to the portable electronic device data writing method of claim 2, when the application interface determines in step a) that the portable electronic device does not have the buffer memory device, the system memory is built from the system memory. The buffer memory further sets a storage threshold of the buffer memory. According to the portable electronic device data writing method of claim 3, the step b) further comprises determining whether the buffer memory has been filled, and when the determination result is yes, the buffer memory is deactivated and executed. Step c). The method for writing data of the portable electronic device described in claim 4 of the patent application, when the application When the program interface determines in step b) that the buffer memory is not filled, it is determined whether the buffer memory usage capacity is greater than the storage threshold, and the step is performed when the buffer memory usage capacity is greater than the storage threshold. c). According to the portable electronic device data writing method described in claim 3, the step a) establishing the buffer memory is: obtaining the external data size data and the system memory capacity data, when the system memory The capacity data is larger than the external data size data, that is, the buffer memory is set from the system memory to have the same capacity as the external data size data; when the system memory capacity data is smaller than the external data size data, the memory is read from the system. The volume sets a buffer memory having the same capacity as the system memory. According to the portable electronic device data writing method of claim 1, the step b) further comprises determining whether the buffer memory is enabled, determining that the buffer memory is enabled when the buffer memory is enabled, and storing the external data to the Buffer memory; otherwise, the buffer memory is not enabled, and the external data is directly stored in the storage unit. The portable electronic device data writing method of claim 7, wherein the buffer memory is preset to be enabled. According to the portable electronic device data writing method described in claim 7 of the patent application, after the step c) calls a buffer system program, the buffer system program determines whether the buffer memory is blank, and when the determination result is no, The buffer memory will be read and the external data will be written to the storage unit; otherwise, a trigger signal is awaited. According to the portable electronic device data writing method of claim 9, the buffer system program returns to step b) after the external data is written into the storage unit in step c).