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Method for improving function of USB interface

A USB interface and function technology, applied in the field of improving USB interface functions, can solve problems such as inability to identify USB devices well, and achieve the effects of complete functions, good support performance, and good social and economic benefits

Inactive Publication Date: 2014-05-14
SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: after the PDA with the USB enhancer is turned on, the USB device suspended on the USB enhancer cannot be well recognized

Method used

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  • Method for improving function of USB interface
  • Method for improving function of USB interface
  • Method for improving function of USB interface

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Embodiment Construction

[0029] Below with reference to accompanying drawing, the present invention is further described by specific embodiment:

[0030] Such as figure 2 As shown, a method for improving the function of the USB interface includes a PDA device, a USB device, and a USB booster, wherein a USB booster power control circuit is added, and the power signal VCC of the USB booster is added to the power control function, and the PDA is powered on When the initialization process is completed first, after the system is started, a background process is started, and the process controls to power on the USB enhancer. At this time, the WINCE system has been fully started, and all services are ready. At this time, the USB enhancer is powered on, and the USB After the booster sends out a handshake signal, the WINCE system can respond in time to complete the entire enumeration process. After the enumeration process is over, the USB booster can work normally.

[0031] In terms of software, you can comp...

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Abstract

The invention discloses a method for improving the function of a USB interface. The devices related to the method comprise PDA equipment, USB equipment and a USB intensifier. A USB intensifier power supply control circuit is additionally arranged, the power supply control function is added to power supply signal VCC of the USB intensifier, when the PDA equipment is powered on, the initialization process is finished, after a system is started, a background process is started, the process controls the USB intensifier to be powered on, at the moment a WINCE system is completely started, all services are ready, the USB intensifier is powered on, after the USB intensifier sends out handshake signals, the WINCE system can respond in time, the whole enumeration process is finished and ended, and the USB intensifier can normally work. The function of the USB interface of the PDA equipment is well improved, the performance for supporting the USB intensifier is good, the function is complete, the USB intensifier does not need to be frequently plugged and pulled out, operation is simplified, the USB intensifier is more convenient to use, and good social and economic benefits are obtained.

Description

technical field [0001] The invention relates to a method for improving the function of the USB interface, which solves the technical bottleneck of the imperfect USB driver under the embedded operating system WINCE system and involves the complicated USB protocol, and improves the USB under the WINCE system by using simple circuits and drivers. Interface function, has great practical value. technical background [0002] Embedded operating system is a kind of system that can accept and process at a fast enough speed when external events or data are generated, and the processing results can control the production process or respond quickly to the processing system within the specified time. The operating system, real-time and fast processing requirements, and high reliability and stability determine that the embedded operating system is difficult to achieve as large and complete functions as the desktop operating system Windows, which makes the support for some special equipmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445
Inventor 边守华
Owner SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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