Extended interface convenient for terminal to develop peripheral equipment and terminal

Abstract

The invention provides an extended interface convenient for a terminal to develop peripheral equipment. The extended interface comprises an analog-to-digital conversion module, a pulse generation module, an interface control module, a power supply pin and an earthed pin; the analog-to-digital conversion module receives an external analog signal through an analog-to-digital conversion input pin, converts the analog signal into a digital signal and transmits the digital signal to an interface control module; the pulse generation module is connected with the interface control module and is used for generating a pulse signal according to the indication of the interface control module and outputting the pulse signal through a control pin; the interface control module is connected with the analog-to-digital conversion module, is used for managing and controlling other modules according to the indication of the terminal, is also used for interacting with the terminal, generating an output signal according to the indication of the terminal and outputting the output signal through the control pin and is also used for transmitting the digital signal generated by the analog-to-digital conversion module to the terminal, wherein the output signal comprises a high electric level signal and a low electric level signal; and the power supply pin and the earthed pin are used for providing power supply to the peripheral equipment. The invention also provides a terminal comprising the extended interface.

Description

technical field [0001] The invention relates to the interface field of embedded development, in particular to an expansion interface which is convenient for a terminal to develop peripheral equipment and a terminal including the expansion interface. Background technique [0002] According to different age groups, terminals can have elderly phones and children's phones, but for the functional requirements of the terminal, ordinary users only use the functions provided by the manufacturer. If it is a smart terminal, you can also install some software with specific functions. Some functions, such as acceleration sensors and photosensitive devices, are also added by the manufacturer during the development process. For smart terminals with powerful operating systems As for terminals with hardware functions, only using the functions provided on the terminal will somewhat lose the intelligence of the intelligent terminal. There are many interfaces that can be expanded on ordinary ...

AI Technical Summary

Problems solved by technology

These devices are conveniently connected with the terminal using USB. The USB interface is now a common interface in the terminal. However, considering the complexity of the USB protocol and the difficulty of development, it often takes a lot of integration to expand a simple function on the periphery of the terminal. The knowledge increases the difficulty and cost of secondary development of the terminal, so it can be seen that the USB interface is rarely used for other development except for connecting to the PC and charging

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