Communicating method and communicating circuit between mobile terminal and modules

Abstract

The invention discloses a communication circuit between a mobile terminal and modules and the communication method thereof. In the mobile terminal, the mobile phone functional module and the television functional module are respectively provided with a serial data interface, an input interface and an output interface; the serial data interface of the mobile phone functional module is connected with the serial data interface of the television functional module, and is used for receiving interface commands and waking the commands; the input interface of the mobile phone functional module is connected with the output interface of the television functional module, and the output interface of the mobile phone functional module is connected with the input interface of the television functional module. In the invention, two pairs of I/O interfaces (namely, input and output interfaces) and a pair of full duplex UART serial data interfaces are utilized for receiving and sending and waking control, thus the reliable communication between the mobile phone functional module and the television functional module is ensured, and the power saving requirement on the mobile terminal (for example, a mobile phone) during the operating process is met.

Description

technical field [0001] The invention relates to a mobile terminal, in particular to a mobile terminal with a TV receiving function, a communication circuit and a communication method between the TV function module and the mobile phone function module. Background technique [0002] With the development of technology and people's demand for higher and better quality of life, the trend of mobile phone as an entertainment communication terminal is becoming more and more obvious. Wherein, the requirement of using the mobile phone as a TV receiving device to complete the function of watching TV anytime and anywhere is also more and more favored by people. Therefore, the TV function of the mobile phone has been paid more and more attention by major operators, and the mobile phone terminal with the TV function of the mobile phone has also begun to develop accordingly. Generally, the baseband and radio frequency part of the TV receiving module in the mobile phone (ie the TV function...

AI Technical Summary

Problems solved by technology

However, when the information interaction is realized through the AT command of the serial port, the following problems will be encountered: when the mobile phone is in the standby state, the information sent by the TV function module to the mobile module will be lost. It is a very low-frequency clock (such as 32kHz) relative to the working state. In this case, real-time detection and response to the data transmitted by the serial port cannot be realized.

[0004] The disadvantages of the above method are as follows: due to the limited number of serial ports of each communication module, when the serial port is used for data communication between the two communication modules, the serial port cannot be used for debugging of the mobile terminal, so that a large number of input and input must be made through the serial port. R&D and maintenance operations that output debug information do not work properly

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