Interrupt detection device and method

Abstract

The invention discloses an interrupt detecting device and an interrupt detecting method. The interrupt detecting device comprises a plug hole, a baseband chip, an electrical level detecting unit and a state detecting unit. The plug hole comprises a DETECT pin. The electrical level detecting unit is used to detect whether a LAUDIO pin of the plug pin is connected with the DETECT pin. If the LAUDIO pin is connected with the DETECT pin, a trigger signal is generated by the electrical level detecting unit and transmitted to the baseband chip. When receiving the trigger signal, the baseband chip starts the state detecting unit. The state detecting unit is used to detect whether a MIC pin is connected with the DETECT pin. If the MIC pin is connected with the DETECT pin, a state value is generated by the state detecting unit and transmitted to the baseband chip. The baseband chip receives the state value and judges whether a plug is connected with a cellphone flash or an earphone based on the state value. The interrupt detecting device and the interrupt detecting method have the advantages that stabilization time does need considering and identification of the plug by the interrupt detecting device is not affected by excessively rapid or slow plugging of the plug and the like.

Description

technical field [0001] The invention relates to a detection device and method, in particular to an interruption detection device and method. Background technique [0002] At present, the incoming call flash has the function of indicating some statuses of mobile devices such as mobile phones, such as missed calls, new short messages, and no battery power. And most of the mobile phones that have appeared use the earphone and the incoming call flash to share the same interface. This method needs to strictly distinguish the inserted earphone from the incoming call flash. Now the commonly used detection method is to identify earphones and incoming call flashes by adding a special detection circuit to the hardware of the mobile phone and combining software. This detection method not only takes up a lot of manpower for software development, but also increases the logic complexity of the software. A dedicated ADC interrupt (ADC interrupt is a designer-defined interrupt) detection c...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problem in the prior art when detecting whether the inserted plug is an earphone or an incoming electric flash by adding a dedicated ADC interrupt detection circuit on the hardware and identifying it in combination with software, resulting in a large amount of manpower and hardware resources being occupied. Increase the logic complexity of the software and the cost of the whole machine, the versatility is poor, and the use of the ADC interrupt detection circuit needs to consider the anti-shake time, the level is unstable when the plug is inserted, and the error probability of plug recognition increases when the plug is inserted too slowly. , provides an interrupt detection device and method, which has the advantages of reducing the complexity of hardware circuits and software, reducing the cost of the whole machine, cross-platform application, no need to consider anti-shake time and accurate identification, etc.

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