Periphery communication interface extension device and method

A communication interface and expansion device technology, applied in the field of control and communication, can solve the problem of high cost of expanding peripheral communication interfaces, achieve the effects of saving expansion costs, improving flexibility, and reducing the number of devices used

Inactive Publication Date: 2008-08-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to address the defect of relatively high cost of expanding the peripheral communication interface in the related art, and pr

Method used

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  • Periphery communication interface extension device and method
  • Periphery communication interface extension device and method
  • Periphery communication interface extension device and method

Examples

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Example Embodiment

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0025] Device embodiment

[0026] figure 1 It is a block diagram of an application system of a peripheral communication interface expansion device according to an embodiment of the present invention. Such as figure 1 As shown, this embodiment includes a main control processor 102 and a single-chip computer 104. The peripheral interfaces of the main control processor 102 include a Modem external interface, an RS485 external interface, an SPI external interface, and a debugging (Debug) interface. The main control processor 102 passes The SPI external interface is connected to the single-chip 104; the single-chip 104 communicates with the main control processor 102 through th...

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Abstract

Provided is an expansion apparatus and method of external communication interface. The apparatus includes a master control processor and a single chip microcomputer connected to SPI external interface of the master control processor with which the single chip microcomputer communicates via the SPI external interface by SPI communication mode. The invention proves an effective cost-saving expansion, a decrease in the number of used devices and an improvement in system design flexibility.

Description

technical field [0001] The present invention relates to the fields in the field of communication and control where peripheral communication peripheral resources of the system are limited and need to be expanded, and in particular relates to an expansion device and method for peripheral communication interfaces. Background technique [0002] With the increasing complexity of system construction and reliability requirements, the number of system peripherals that need to be controlled, communicated and monitored has also increased accordingly. [0003] Most of the mainstream main control processors on the market (such as ARM (Advanced RISCMachines, advanced simplified instruction set device) processors) are equipped with control and communication ports with relatively complete functions and categories, such as standard modem (Modem) interface, serial port, etc. Line 485 interface, serial 232 interface, Universal Serial Bus (Universal Serial Bus, referred to as USB) interface, s...

Claims

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Application Information

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IPC IPC(8): G06F13/38
Inventor 宋涛
Owner ZTE CORP
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