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An intelligent mobile phone based on dual-CPU architecture and communication control method

A technology of smart phone and communication control, applied in the direction of telephone structure, radio/induction link selection arrangement, selection device, etc., can solve the problems of complex interface, increase software cost, integration and debugging, etc.

Inactive Publication Date: 2008-08-13
SHANGHAI WINGTECH ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the dual-CPU architecture is versatile and easy to implement, but the communication method between the AP and the module has become a relatively important issue. First, it is necessary to ensure reliable transmission of interface data. Secondly, the interface should not be too complicated. Increase the cost of software and the difficulty of integration and debugging

Method used

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  • An intelligent mobile phone based on dual-CPU architecture and communication control method
  • An intelligent mobile phone based on dual-CPU architecture and communication control method
  • An intelligent mobile phone based on dual-CPU architecture and communication control method

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Embodiment Construction

[0044] See figure 1 The present invention discloses a dual-CPU architecture smart phone, which includes an application processor AP and a baseband processor CP, characterized in that: the WKUPCP terminal of the AP is connected to the INT terminal of the CP, and the INTWAKE terminal of the AP is connected to the IOW terminal of the CP , The CP_STATUS of the AP is connected to the ION end of the CP, the RXD and TXD ends of the AP are connected to the TXD and RXD ends of the CP respectively, the RTS and CTS ends of the AP are connected to the CTS and RTS ends of the CP, and the POWER and RST ends of the AP Connect the IOP and IOR terminals of the CP respectively; among these ports:

[0045] WKUPCP is the output port. AP triggers the CP interrupt through this end to wake up the CP; RXD and TXD are the universal asynchronous receiver / transmitter (UniversalAsynchronous Receiver / Transmitter, abbreviated UART) serial data ports of AP and CP, used for data transfer Full duplex transmissio...

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Abstract

The invention relates to a smart mobile phone with a structure of double CPU, wherein AP and CP are under dormancy status in most case during standby state, and a communication controlling method. When only AP is operated by user, CP could still stay in dormancy, when CP needs to be operated by user, AP would actively wake CP up, make sure CP is ready for receiving data through a hand-shake process, then transmit data; when CP has URC for uploading, it would wake AP up, make sure AP is ready through a hand-shake process, complete transmission of data; when accidental restart of CP occurs during working process, firstly wake AP up, and generate a 100ms interrupt of negative edge at ION pin to inform AP initialize CP once again to enter MUX mode. Hand-shake processes for waking up abide by 3GPP GSM07.10 electricity saving control protocol, and are all completed in control channel DLC0. The invention realizes stabilized communication between the two, and control energy consumption of mobile phone to the lowest.

Description

Technical field [0001] The invention relates to a dual-CPU architecture smart phone and a communication control method thereof, in particular to a mutual wake-up mechanism between two CPUs in the field of dual-CPU phones. Background technique [0002] Smart phones, namely Smartphones, can also be called multimedia phones. Most smartphones run popular operating systems, such as powerful operating systems such as Symbian, WindowsMobile, Palm, and Linux, but the system tasks are heavy, so most smartphones now use Application Processors (AP) + Baseband processor (Cooperate Processor, abbreviated CP) system architecture, the application processor is dedicated to running the operating system and processing high-load multimedia applications, the communication module where the baseband processor is located completes the functions of interaction with the wireless network, such as making calls, Functions such as texting and surfing the Internet. This architecture can adapt well to the dive...

Claims

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Application Information

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IPC IPC(8): H04Q7/32H04M1/02
Inventor 王诚杨锐
Owner SHANGHAI WINGTECH ELECTRONICS TECH