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Method and device for driving XD card

A driving method and chip technology, applied in the driving field, can solve problems such as PCI8412 chip driving XD cards, and achieve the effect of easy implementation and convenient use

Active Publication Date: 2012-05-23
深圳市研祥智慧科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide an XD card driving method and device for the defect that the prior art cannot use the PCI 8412 chip to drive the XD card under the Linux system

Method used

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  • Method and device for driving XD card
  • Method and device for driving XD card
  • Method and device for driving XD card

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Embodiment Construction

[0092] 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 embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0093] The present invention provides an XD card driving method and device, which can control the PCI 8412 chip to drive the XD card under the Linux system. The technical solution provided by the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0094] Before introducing the technical solution provided by the present invention, each register in the PCI 8412 chip is described first.

[0095] name

Offset

describe

SOCK_CONTROL

0x004

general control

SOCK_PRESENT_STATE

0x008

g...

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Abstract

The invention relates to drive technology, and provides a method and a device for driving an XD card. The invention aims to overcome the defect that a PCI 8412 chip can not be used to drive the XD card in an Linux system. The method comprises the following initializing steps: S1, writing 0xFFFFFFFF into an XD card control register, going to step S2; S2, writing 0x2 into a XD card command register, and going to step S3; S3, and after 40 milliseconds, judging whether the sixth value of an XD card ID register is 1, if so, judging that the initialization is successful, otherwise, returning to the step S2. The invention also provides a device for driving the XD card. The method and device of the invention can be used for controlling the PCI 8412 chip to drive the XD card in Linux system; and the technical scheme of the invention has the advantages of easy implementation and convenient operation.

Description

technical field [0001] The present invention relates to driving technology, and more specifically, relates to an XD card driving method and device. Background technique [0002] XD card (XD-PICTURE CARD, XD image card) is a memory card jointly launched by Japan Olympus Corporation and Fuji Co., Ltd. Its shape is extremely compact, the size is about 20X25X1.7mm, only the size of a postage stamp , weighing about 2 grams. The XD card adopts a single-sided 18-pin interface, and the theoretical maximum capacity can reach 8GB, which has a large expansion space. At present, the XD cards seen in the market have different capacity specifications such as 512MB and 1G / 2G. [0003] The PCI 8412 chip is a PC card controller chip integrated in a single package launched by TI (Texas Instruments, Texas Instruments). The chip integrates an IEEE 1394OHCI (OpenHost Control Interface, open host control interface) host controller, and includes a physical port. At the same time, the chip also...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/10G06F3/08G06F12/08
Inventor 徐成泽崔凯
Owner 深圳市研祥智慧科技股份有限公司
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