Communication terminal and nonvolatile data processing method of communication terminal
A non-volatile data and communication terminal technology, which is applied in the field of communication terminal and its non-volatile data processing, can solve problems such as increasing coupling, and achieve the effect of ensuring correctness and accurate backup
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Embodiment 1
[0053] As described in the background technology, the existing solution usually uses the AP to upgrade the NV data and back up the parameter data. In this process, the AP side needs to analyze the data structure of the NV data of the Modem. However, the NV data of the Modem is very important to the AP. It should be transparent, and the AP does not need to care about its format and structure, so the existing solution increases the coupling between the AP and the Modem.
[0054] In response to this shortcoming, in this embodiment, an NV partition (i.e. the third partition) is added in the non-volatile memory on the AP side. When downloading the NV data of the Modem, the AP only needs to write the NV data into the NV partition without For any analysis, the NV data upgrade and parameter data backup will be performed by the Modem when it is turned on, so as to reduce the coupling between the AP and the Modem.
[0055] Such as figure 1 As shown, the communication terminal provided ...
Embodiment 2
[0079] On the basis of the first embodiment, this embodiment describes the backup process of the NV data when the Modem firmware is upgraded.
[0080] Such as Figure 4 As shown, the method for processing the non-volatile data of the communication terminal provided in this embodiment includes:
[0081] Step S300, after the AP is powered on, if the first partition and the second partition are not empty, copy the NV data of the first partition, the second partition and the third partition to the first storage area and the second storage area of the Modem respectively. area and a third storage area;
[0082] When the Modem performs system initialization, step S301 is performed to determine whether the timestamps of the NV data in the first storage area and the NV data in the third storage area are consistent, if yes, it indicates that the Modem firmware does not need to be upgraded, otherwise step S302 is performed.
[0083] Step S302 is executed to determine whether the data...
Embodiment 3
[0102] On the basis of the first embodiment, this embodiment describes the backup process of the calibrated radio frequency parameters.
[0103] In the prior art, although the AP side uses two mutually backup partitions to store the NV data, it can ensure that the data in the other partition can be restored after the data in one partition is damaged. However, these two partitions are writable during the normal operation of the communication terminal. Once an illegal power failure occurs during the writing process, the NV data will be destroyed. Hardware-related parameter data cannot be recovered, thereby affecting the radio frequency performance of the communication terminal.
[0104] Therefore, in this embodiment, another NV partition (that is, the fourth partition) is added to the non-volatile memory on the AP side to store parameter data related to hardware devices such as calibrated radio frequency parameters and IMEI. The NV partition Only after the communication termina...
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