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Firmware program automatically downloading method of USB 3.0 data acquisition module

A technology of data acquisition module and firmware program, which is applied in the direction of program control device, program loading/starting, etc., can solve problems such as troublesome operation, high cost, and difficulty in promotion, and achieve the effects of simple operation, reduced complexity, and reduced cost

Inactive Publication Date: 2015-04-08
SHANDONG SINOCHIP SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology allows for easy access from both computers without having to store it on disk or requiring an external memory card. It also reduces costs while still providing effective functionality across multiple types of electronic equipment.

Problems solved by technology

This patented technical problem addressed in this patents relates to reducing cost while still maintaining secure storage of software that allows users access through an interface such as Flash or Universal Serial Bus (USB).

Method used

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  • Firmware program automatically downloading method of USB 3.0 data acquisition module
  • Firmware program automatically downloading method of USB 3.0 data acquisition module

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Such as figure 1 As shown, a method for automatically downloading a firmware program for a USB3.0 data acquisition module provided by the present invention, the firmware program is stored in the device driver of the module, when the USB3.0 data acquisition module is connected to the host, at this time due to There is no firmware program in the module, and the channel between the internal control chip FPGA and the host cannot be established. After the host detects that the USB3.0 data acquisition module is connected, it will obtain the device descriptor from the module, thereby identifying that the module is a For large-capacity storage devices that support the Bulk-Only transfer protocol, you need to install the device driver for this module when connecting for the first time. The device driver will install the driver for the device without a firmware program. A...

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Abstract

The invention discloses a firmware program automatically downloading method of USB 3.0 data acquisition module and the method includes: after detecting the access of the USB 3.0 data acquisition module by the host machine, obtaining the device descriptor from the USB 3.0 data acquisition module, judging whether the access is the first time, if yes, mounting the device driver for the USB 3.0 data acquisition module, otherwise, loading the device driver; initializing the device driver and obtaining the VID/PID of the USB 3.0 data acquisition module, judging whether to download the firmware program, if needed, downloading the firmware program in the memory of a control chip and upgrading the firmware; if the firmware program is already downloaded, and using the driver for communicating with the USB 3.0 data acquisition module by the host machine. The firmware program code is used by the driver and automatically downloaded to the USB 3.0 data acquisition module, the flash memory is not needed and the cost is greatly reduced.

Description

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Claims

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Application Information

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Owner SHANDONG SINOCHIP SEMICON
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