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Method and system for updating microcontroller firmware

A microcontroller and firmware technology, applied in the field of firmware systems, can solve problems such as lack of flexibility in use, update firmware, and unusability, and achieve the effect of increasing flexibility

Inactive Publication Date: 2008-09-10
FULHUA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because the IC interface is very commonly used, if the IC interface 112 is occupied by the IC interface external device 126 for other purposes, it will not be able to update the firmware. Updating the firmware through the UBS interface 114 becomes inflexible in use

Method used

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  • Method and system for updating microcontroller firmware

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Embodiment Construction

[0048] The invention discloses a system and method for updating firmware of a microcontroller. In order to make the narration of the present invention more detailed and complete, refer to the following description and cooperate figure 2 , image 3 and Figure 4 to Figure 6 .

[0049] refer to figure 2 , figure 2 A system for updating an embodiment of the firmware of the present invention. The system 200 for updating firmware includes an on-chip program memory 208 and a firmware loader 204 located in a microcontroller 202 , and an external device 201 . The on-chip program memory 208 is used to store a firmware, and the firmware loader 204 has a plurality of interfaces, including a serial peripheral interface 210 , an IC interface 212 , and a USB interface 214 . These three interfaces are respectively connected to the serial peripheral interface enabling device 216, the inter-IC interface enabling device 218, and the universal serial bus interface enabling device 220, and...

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Abstract

The invention relates to a system for updating a firmware of a micro-controller, comprising a serial peripheral interface, an interface in an integrated circuit and a universal serial bus interface, thus increasing the flexibility on the usage of the interfaces. Furthermore, a method for updating a firmware of a micro-controller is also disclosed, thus flexibly using all the interfaces.

Description

technical field [0001] The present invention relates to a system and method for updating firmware, and in particular, relates to a system and method for updating firmware of a microcontroller. Background technique [0002] The 3C (Computer, Communication, Consumer-electronics) products that have flourished in recent years often require users to update the firmware of the product to improve the compatibility and performance of the product, or when a bug is found in the firmware, Users are also required to update the product's firmware to correct these errors. In addition, for system vendors, buying an integrated circuit (integrated circuit, IC), such as a microcontroller (Micro Controller Unit, MCU), although IC manufacturers may provide firmware programs, but this firmware is mostly IC manufacturers use it for hardware testing, so the function and structure are not yet complete. If system vendors can easily update or upgrade the firmware, the value of the IC will be greatl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445
Inventor 张翊峰魏瑞青
Owner FULHUA MICRO ELECTRONICS