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Device and method analog series external interface and player therewith

A peripheral interface and analog serial technology, which is applied in the field of players and devices that simulate serial peripheral interfaces, can solve problems such as limited business types, difficult business expansion, and non-support for MP3 media file playback, etc., to achieve improved The effect of business experience

Active Publication Date: 2007-06-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For low-end mobile phone platforms, the types of services are limited, and often do not support the playback of MP3 media files; and there is no SPI interface, so it is difficult to expand services

Method used

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  • Device and method analog series external interface and player therewith
  • Device and method analog series external interface and player therewith
  • Device and method analog series external interface and player therewith

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] This embodiment is: the mobile phone platform controls the MP3 function chip through the SPI simulated by software, and realizes the operation of playing the MP3 media file. The mobile phone platform includes a processing chip, a storage device and a radio frequency device, wherein the radio frequency device has nothing to do with the content of the present invention. For the SPI interface, the processing chip of the mobile phone platform is the main chip, and the MP3 function chip is the slave chip.

[0034] The mobile phone platform used in this embodiment is Qualcomm 6000, and the Qualcomm 6000 adopts the rex operating system, which can implement a multi-task scheduling mechanism. Qualcomm 6000 itself does not have MP3 media pla...

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PUM

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Abstract

The analog serial peripheral interface (SPI) thereof comprises: signal wire for connecting a master chip to a slave chip and transmitting the serial clock signals (SCK); a master-out slave-in (MOSI) module for receiving SCK from master chip and deciding if the SCK is at rising edge, and for sending master chip signals to the slave chip according to decision result; and a master-in slave-out (MISO) chip for receiving SCK from master chip and deciding if the SCK is at falling edge, and for sending signals to the master chip according to the decision result. The invention also reveals a method thereof.

Description

technical field [0001] The invention relates to the field of hardware design, in particular to a device and method for simulating a serial peripheral interface (SerialPeripheral Interface, SPI) and a player using the interface. Background technique [0002] The mobile phone platform includes processing chips, storage devices and radio frequency devices, and the storage devices store the operating system, application programs and other data files of the mobile phone. In the working state, the processing chip starts the operating system, establishes the corresponding tasks of the application program in the operating system, and completes the corresponding functions; the radio frequency device is used to receive and transmit radio signals, and realize making / receiving calls, sending and receiving short messages or surfing the Internet, etc. [0003] For the high-end mobile phone platform, in addition to basic services such as dialing / receiving calls and sending and receiving sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M11/08
Inventor 佘培嘉
Owner HUAWEI TECH CO LTD
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