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A method for realizing that multiple usb devices receive and process data at the same time

A technology for processing data and equipment, applied in the field of information processing, to achieve the effect of improving initialization efficiency and improving downlink data efficiency

Active Publication Date: 2014-10-29
FEITIAN TECHNOLOGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the production efficiency of card products and solve the problems existing in the existing production equipment process, the present invention provides a method for realizing multiple USB devices simultaneously receiving and processing data, which can solve the problem of simultaneously downloading COS to multiple devices

Method used

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  • A method for realizing that multiple usb devices receive and process data at the same time
  • A method for realizing that multiple usb devices receive and process data at the same time
  • A method for realizing that multiple usb devices receive and process data at the same time

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Experimental program
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Embodiment 1

[0036] This embodiment provides a method for multiple USB devices to receive and process data at the same time. By setting address commands and restoring address commands, multiple devices can receive and process special operation commands at the same time, and can also receive and process other operations individually. The specific implementation method of the command is as follows:

[0037] Step 101: the device receives a command from the host;

[0038] Step 102: judging the command type;

[0039] If it is to obtain the address command, then perform step 103-1 to step 103-2;

[0040] If it is an address setting command, then perform step 104-1 to step 104-5;

[0041] If it is a special operation command, then execute step 105-1 to step 105-3;

[0042] If it is to restore the address command, then perform step 106-1 to step 106-4;

[0043] If it is other operation commands, then execute step 107-1 to step 107-3;

[0044]Specifically, the device parses the received comman...

Embodiment 2

[0077] This embodiment provides a method for multiple USB devices to receive and process data at the same time. By setting special operation commands, the device automatically restores the address after performing the special operation, so that multiple devices can receive and process special operations at the same time. commands, and can also receive and process other operation commands individually. The specific implementation method is as follows:

[0078] Step 201: the device receives a command from the host;

[0079] Step: 202: judging the command type;

[0080] If it is to obtain an address command, then perform step 203-1 to step 203-2;

[0081] If it is an address setting command, then perform step 204-1 to step 204-5;

[0082] If it is a special operation command, then execute step 205-1 to step 205-6;

[0083] If it is other operation commands, then execute step 206-1 to step 206-3;

[0084] Step 203-1: Get the current device address;

[0085] Generally, the acq...

Embodiment 3

[0110] This embodiment provides a method for multiple USB devices to receive and process data at the same time. By setting a timer, the device can restore the address regularly after performing a special operation, so that multiple devices can receive and process special operations at the same time. commands, and can also receive and process other operation commands individually. The specific implementation method is as follows:

[0111] Step 301: the device receives a command from the host;

[0112] Step 302: Determine the command type;

[0113] If it is to obtain an address command, then execute step 303-1 to step 303-2;

[0114] If it is an address setting command, then execute step 304-1 to step 304-6;

[0115] If it is a special operation command, then execute step 305-1 to step 305-3;

[0116] If it is another operation command, then execute step 306-1 to step 306-3;

[0117] Step 303-1: Obtain the current device address;

[0118] Generally, the obtained current dev...

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Abstract

The invention discloses a method for receiving and processing data at the same time by using a plurality of USB devices, belonging to the technical field of information processing. Device addresses of the plurality of USB devices which are connected with an upper computer are set to be consistent; a special command sent by the upper computer can be received by the plurality of USB devices; and only a main device returns a response, while other USB devices with changed device addresses only perform corresponding data processing, without returning a response. By the method, the efficiency of downlink data can be improved; and for example, in a product producing process, the data burning efficiency is improved, or a digital certificate is quickly searched by issuing a search instruction to the plurality of USB devices at the same time.

Description

technical field [0001] The invention belongs to the technical field of information processing, and in particular relates to a method for simultaneously receiving and processing data by multiple USB devices. Background technique [0002] At present, smart cards have become the main direction of IC card development due to their good processing ability and confidentiality performance, and have been widely used in more and more fields, for example, user cards in the digital TV field, bank cards in the financial field, and public transportation fields. bus card, etc. Currently used smart cards, the production process includes smart card initialization and personalization. [0003] With the development of technology and economy, the physical form of smart card products is no longer a single plastic card, and more and more products are no longer a single smart card product, but a smart card chip and other functional chips are packaged together to form a A multifunctional product,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/38
Inventor 陆舟于华章
Owner FEITIAN TECHNOLOGIES