Connecting line, control method, control circuit and electronic equipment

Abstract

The embodiment of the invention discloses a connecting line, a control method of electronic equipment, a control circuit and the electronic equipment, which belong to the technical field of electronic information and can be used for extracting running log information of a system without detaching a mainboard of the electronic equipment. One end of the connecting line is provided with an earphone plug, and the other end of the connecting line is connected to a computer; the earphone plug is provided with four contacts, i.e., a left channel contact, a right channel contact, a ground wire contact and a microphone contact respectively; four leads are arranged inside the connecting line; and the four contacts are connected with the computer through the four leads respectively. The control method of the electronic equipment comprises the following steps of: when the earphone plug is inserted into the earphone interface of the electronic equipment, detecting the level of the right channel contact of the earphone plug; and when the right channel contact of the earphone plug is at a high level, connecting the UART (Universal Asynchronous Receiver Transmitter) input interface of the electronic equipment to the left channel contact, and connecting the UART output interface of the electronic equipment to the microphone contact. The connecting line is applied to electronic equipment such as mobile phones and panel computers.

Description

technical field [0001] The invention belongs to the technical field of electronic information, and in particular relates to a connection line, a control method for electronic equipment, a control circuit and electronic equipment. Background technique [0002] With the continuous development of electronic technology, electronic devices such as mobile phones and tablet computers have become common communication tools in people's daily life. Taking mobile phones as an example, when a fault occurs during the development stage and during user use, R&D or maintenance personnel need to extract the system operation log (log) information of the core control chip of the mobile phone, because the system operation log information records the core control chip itself and peripheral information. Device operation information, which is crucial for locating and analyzing problems. [0003] The current method of extracting system operation log information is to remove the motherboard of the ...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: in the development or maintenance of electronic equipment, it is necessary to destroy the whole machine, remove the main board of the electronic equipment, and easily package the chip size on the main board ( Chip Scale Package, CSP) components, as well as various components of other parts cause damage, and the disassembly process also affects the debugging efficiency of electronic equipment during development or maintenance

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