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PCI (Peripheral Component Interconnection)-to-CF (Compact Flash) driving method

A driving method and PCI device technology, applied in the field of computers, to achieve the effects of strong practicability, easy popularization, and wide application range

Inactive Publication Date: 2014-08-13
SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no research on the PCI-to-CF driver under the domestic embedded operating system ReWorks. Therefore, a driving method based on the domestic embedded operating system ReWorks that realizes the PCI-to-CF interface is provided.

Method used

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  • PCI (Peripheral Component Interconnection)-to-CF (Compact Flash) driving method

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Embodiment Construction

[0021] A PCI-to-CF driving method provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] as attached figure 1 As shown, the present invention provides a PCI-to-CF driving method. First, configure the hardware device, and the overall hardware adopts the following method: figure 1 As shown in the structure, the hardware in the attached drawing is basically the same as the prior art hardware, but its CPU adopts the domestic Loongson CPU, and the software system uses the domestically produced ReWorks (that is, Ruihua in the attached drawing) operating system.

[0023] After the hardware setting is completed, the specific PCI to CF driver implementation process is as follows:

[0024] 1. In the ReWorks operating system, create a CF driver: initialize the CF device and create the device file system. The key source code for this creation is:

[0025] If(pciDrv(PCI_INT_VEC,IDE_INT_VEC,type)==ERROR)

[0026] pr...

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Abstract

The invention provides a PCI (Peripheral Component Interconnection)-to-CF (Compact Flash) driving method. The specific realization process of the PCI-to-CF driving method comprises the steps of creating a CF driver in a ReWorks operating system; initializing CF device and creating a device file system; after a device driver is established, using I / O (Input / Output) functions to access the CF device; packing the driver in the ReWorks operating system, compiling the kernel of the system and programming the driver on a handheld computer platform; after the system is started, inserting the CF device into a slot, wherein the system automatically recognizes the CF device, the CF device is configured after recognition and the CF device completes storage backup; pulling out the CF device, wherein the system automatically uninstalls the CF device. Compared with the prior art, the PCI-to-CF driving method has the advantages that the CF extension function is realized, the practicability is high, the application scope is wide and the popularization is facilitated.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a PCI-to-CF driving method. Background technique [0002] Loongson series processors are general-purpose CPUs independently developed by the Institute of Computing Technology, Chinese Academy of Sciences, among which Loongson 1 series processors are oriented to embedded applications such as industrial control and consumer electronics (mobile phones / MP4 / handheld computers, etc.). Loongson 1A processor itself does not support CF expansion, but many special industry users such as military users have many expansion devices with CF interface. CF card can work in three modes: PC Card Memory mode, PC Card I / O mode and True IDE mode. True IDE mode is rarely used, and PC Card Memory mode can support CF interface memory cards, but most of the CF interface devices of military users are PC Card I / O mode, and the CF interface of this mode can only be transferred out through the PCI bus. L...

Claims

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Application Information

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IPC IPC(8): G06F9/445G06F13/38
Inventor 刘传刚陈乃阔
Owner SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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