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

A smart phone, communication control technology, applied in the direction of reducing energy consumption, sustainable communication technology, advanced technology, etc., can solve the problems of complex interface, increase software cost, integration and debugging, etc.

Active 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

[0049] see figure 1 , the invention discloses a dual-CPU architecture smart phone, which includes an application processor AP and a baseband processor CP, characterized in that: the DTR end of the AP is connected to the DSR end of the CP, and the WAKEUP end of the AP is connected to the IOW end of the CP , the CP_STATUS of the AP is connected to the ION terminal of the CP, the RXD and TXD terminals of the AP are respectively connected to the TXD and RXD terminals of the CP, the RTS and CTS terminals of the AP are respectively connected to the CTS and RTS terminals of the CP, and the POWER and RST terminals of the AP Connect the IOP and IOR terminals of the CP respectively; among these ports:

[0050]RXD and TXD are the data ports of UART serial ports of AP and CP, which are used for full-duplex transmission of data;

[0051] RTS and CTS are serial port flow control signals for high-speed data transmission;

[0052] DTR is an output port, indicating whether the data terminal ...

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Abstract

The invention relates to a double CPU architecture intelligent mobile phone and the communication control method thereof. According to the technology, AP and CP are in sleep state in most time during stand-by process; when a user only operates AP, CP is also in sleep state; when the user needs to operate CP, AP actively wakeups CP to transmit data; when URC is reported to CP, AP is waken up to transmit data; when accidental restart occurs during CP operation, AP is firstly waken up, then a 100 to 200ms fall edge interrupt is generated at ION pin to notify AP of reinitializing CP and entering MUX mode. According to the invention, not only stable communication is realized, but also the power consumption is reduced to minimum.

Description

technical field [0001] The invention relates to a smart phone with dual-CPU architecture and a communication control method thereof, in particular to a mutual wake-up mechanism between two CPUs in the field of dual-CPU mobile phones. Background technique [0002] A smart phone, namely a Smartphone, can also be called a multimedia mobile phone. Most smart phones will run popular operating systems, such as Symbian, WindowsMobile, Palm and Linux and other powerful operating systems, but the system tasks are relatively heavy, so now most smart phones use application processors (Application Processor, abbreviated as AP) +The system architecture of the baseband processor (Cooperate Processor, CP for short). The application processor is dedicated to running the operating system and handling high-load multimedia applications. The communication module where the baseband processor is located completes the functions of interacting with the wireless network, such as making calls, Send ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/73G06F1/32
CPCY02D30/70
Inventor 杨锐王诚
Owner SHANGHAI WINGTECH ELECTRONICS TECH
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