Circuit for controlling debugging function, electronic equipment and corresponding debugging equipment thereof

Abstract

The invention provides a circuit for controlling a debugging function, electronic equipment and corresponding debugging equipment thereof, and relates to the field of electronic equipment. While a data transmission access and a debugging access share one port, the debugging function of the electronic equipment can be normally ensured when the system of the electronic equipment is down. The circuit comprises a main control chip unit, a multiplex port and a debugging switch, wherein the debugging switch comprises a control end, a first end and a second end; the multiplex port is connected with the first end of the debugging switch, and the main control chip unit is connected with the second end of the debugging switch; the control end of the debugging switch is used for receiving a first level signal or a second level signal; the first level signal is used for controlling the debugging switch to be turned off, and the second level signal is used for controlling the debugging switch to be turned on.

Description

technical field [0001] The invention relates to the field of electronic equipment, in particular to a circuit for controlling debugging functions, electronic equipment and corresponding debugging equipment. Background technique [0002] In order to realize the debugging of the software function of the electronic device, a port for debugging needs to be set on the electronic device. In the prior art, in order to save the cost of the electronic device and port resources, the debugging port of the electronic device is multiplexed on other data communication ports, forming a complex use port. Through the control of the software, the multiplexed port can realize the function of data communication and also realize the debugging function. For example, the USB (Universal Serial Bus, Universal Serial Bus) port of the mobile terminal can realize the debugging of the mobile terminal and the transmission of USB data; the VGA (Video Graphics Array, Video Graphics Array) port of the TV c...

AI Technical Summary

Problems solved by technology

[0005] When implementing the prior art, the inventor found that when the debugging function of the electronic device is turned off, if the electronic device is in a state of crash or other failures that cannot be controlled by the system, the debugging function cannot be enabled through software settings at this time, that is, the debugging cannot be enabled. Therefore, it is impossible to locate the cause of the failure of the electronic equipment in time through the multiplexed port

Although the existing technical solution realizes that the data transmission channel and the debugging channel share one port, it cannot guarantee that the debugging function of the electronic device can be opened normally when the system of the electronic device is down.

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