Method for realizing upgrade and maintenance of equipment programs based on USB Host and U disc

A technology of program upgrade and USB interface, which is applied in the field of MCU application to achieve the effect of improving work efficiency and reducing construction difficulty

Inactive Publication Date: 2010-12-01
TIANJIN 712 COMM & BROADCASTING CO LTD
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  • Application Information

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Problems solved by technology

In the case of on-site use in a complex environment, the above methods r

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  • Method for realizing upgrade and maintenance of equipment programs based on USB Host and U disc
  • Method for realizing upgrade and maintenance of equipment programs based on USB Host and U disc
  • Method for realizing upgrade and maintenance of equipment programs based on USB Host and U disc

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Embodiment Construction

[0023] In order to understand the present invention more clearly, describe the present invention in detail in conjunction with accompanying drawing and embodiment:

[0024] Such as figure 1 As shown, the MCU in this embodiment adopts LPC1765 of NXP Company, which is a microcontroller based on ARM Cortex-M3, and can be used for embedded devices with high integration and low power consumption.

[0025] The program upgrade and maintenance of the embedded device is realized under the control of the prefabricated software in the MCU through the LPC1765 with the USB Host controller and the U disk.

[0026] After the data U disk is inserted into the device, the USB Host controller of LPC1765 will complete the enumeration of the data U disk and read the configuration file under the control of the program.

[0027] Such as figure 2 Shown is the program running process:

[0028] The program determines the current task that needs to be performed by identifying the keywords in the con...

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Abstract

The invention relates to a method for realizing upgrade and maintenance of equipment programs based on USB Host and a U disc. A main circuit of embedded system equipment comprises an MCU circuit, wherein the MCU is provided with a USB Host controller, and the USB Host controller is connected with an USB interface to form an equipment program upgrade port; a data U disc is externally connected through the USB interface of the MCU circuit, and data in the data U disc are read and written under the control of preset software in the MCU so as to realize the upgrade and the maintenance of equipment programs. Thus, the upgrade and the maintenance of equipment programs can be realized by inserting the data U disc into the USB interface of the equipment without using hardware units such as computers, serial port communication cables, programmers and the like. Therefore, the method can reduce construction difficulty of site operation in a complicated environment and has generalization values.

Description

technical field [0001] The invention relates to an MCU application technology with a USB Host, in particular to a method for upgrading and maintaining device programs based on the USB Host and a U disk. Background technique [0002] Embedded systems are widely used in products in communication, industrial control and other fields. Embedded microprocessor (MCU) is the core part of embedded system equipment. In practical applications, there are often maintenance requirements such as equipment program upgrades, system operation log export, and data import. Traditional MCU program upgrades are usually implemented using a dedicated programmer and PC, and log export and data import are generally implemented using the serial port and the host computer software running on the PC. In the case of on-site use in a complex environment, the above-mentioned means rely on a variety of different hardware, and there are many inconveniences. Therefore, in the field with complex environment,...

Claims

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Application Information

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IPC IPC(8): G06F9/445
Inventor 孙磊
Owner TIANJIN 712 COMM & BROADCASTING CO LTD
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