Electronic equipment and circuit thereof, transfer equipment and circuit thereof, and signal control system

Abstract

The invention provides electronic equipment and a circuit thereof, transfer equipment and a circuit thereof, and a signal control system, belonging to the technical field of electronic equipment. A circuit of the electronic equipment comprises a detection circuit and a CPU (Central Processing Unit), the CPU is provided with a GPIO (General Purpose Input / Output) interface, the detection circuit is respectively connected with the physical interface and CPU of the electronic equipment, and the detection circuit is used for outputting a first voltage signal to the GPIO when detecting that the voltage signals output by a first port and second port of the physical interface are both first voltage signals, so as to start a downloading mode of the electronic equipment. The electronic equipment and the circuit thereof, the transfer equipment and the circuit thereof, and the signal control system, which are provided by the invention, improve the starting accuracy of the downloading mode of the electronic equipment.

Description

technical field [0001] The present invention relates to the technical field of electronic equipment, in particular to an electronic equipment and its circuit, a switching device and its circuit, and a signal control system. Background technique [0002] With the continuous development of science and technology, electronic devices have entered people's lives and become a vital part of people's lives. [0003] Taking the electronic device as a mobile phone for illustration, in the prior art, in order to reduce the thickness of the mobile phone, most mobile phones adopt a non-detachable integrated design with a built-in battery in the back shell. For such an all-in-one mobile phone, when making it enter the download mode, usually the software defines two volume keys as the judgment conditions for entering the download mode. Specifically: when the mobile phone is turned off, press the two volume keys, and plug in the Universal Serial Bus (USB) power cord at the same time, the m...

AI Technical Summary

Problems solved by technology

Because the software process for judging whether the volume key is pressed is defined in the SBL, when the software cannot normally jump to the SBL or the SBL is damaged and cannot be judged, it cannot enter the download mode normally. Risk of the user accidentally triggering the two volume keys and putting the phone in download mode

[0004] It can be seen that the accuracy rate of download mode startup is not high by adopting the existing download mode startup method.

Images