Patent ID: 11966299
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A data backup method, wherein the method being applied to a user terminal, and the method comprises:
sending, by a first configuration channel (CC) controller, a first signal switching instruction to a first multiplexer (MUX) in response to detecting that a debugging device is connected to a first interface of the user terminal;
receiving, by the first MUX, the first signal switching instruction;
connecting a second signal input end to a first signal output end according to the first signal switching instruction, so that a main controller receives, through the first interface, a data backup instruction sent by the debugging device;
sending, by the main controller, a second signal switching instruction to a second MUX and sending a third signal switching instruction to a third MUX in response to receiving the data backup instruction;
receiving, by the second MUX, the second signal switching instruction, and connecting a fourth signal input end to a second signal output end according to the second signal switching instruction;
receiving, by the third MUX, the third signal switching instruction;
connecting a sixth signal input end to a third signal output end according to the third signal switching instruction;
receiving, by a storage component, an input/output (I/O) instruction sent by the debugging device; and
performing data backup processing according to the I/O instruction.