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Car audio system and software upgrading method thereof

A car audio and software upgrade technology, applied in the direction of program loading/starting, program control device, memory address/allocation/relocation, etc., can solve the problems of inconvenient software upgrade, achieve low cost, simplify hardware circuit, and simple upgrade process Effect

Inactive Publication Date: 2010-07-07
SHENZHEN HANGSHENG ELECTRONICS
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Problems solved by technology

[0003] The purpose of the present invention is to provide a car audio system and its software upgrade method, aiming to solve the inconvenience of software upgrade after the existing car audio system is installed

Method used

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  • Car audio system and software upgrading method thereof
  • Car audio system and software upgrading method thereof
  • Car audio system and software upgrading method thereof

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Embodiment Construction

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0028] see figure 1 As shown, the car audio system provided by the preferred embodiment of the present invention includes an MCU10 (such as MB90880 series single chip microcomputer) and a power supply module 11, a servo module 12, a radio module 13, an Audio (audio) module 14, and a Bluetooth module 15 respectively connected to the MCU10. , a display module 16 and a key module 17 . Wherein, the MCU 10 realizes the control of the power supply module 11 , the servo module 12 , the display module 16 and the button module 17 by means of GPIO (General-Purpose IO ports, general-purpose input an...

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Abstract

The invention provides a car audio system and a software upgrading method thereof. The memory space of an MCU of the car audio system is divided into a normal application program space, a software update control program space and an updated mark space, the software upgrading control can be directly performed in the RAM and storage space in the MCU, thus simplifying hardware circuits; a public boot program is designed so that the system can enter a software upgrading mode when the updating of application program fails, thus the software upgrading system is stable; and the car audio system of the invention has the advantages of simple upgrading process and low cost.

Description

technical field [0001] The invention relates to the field of car audio, in particular to a software upgrade scheme in a car audio system. Background technique [0002] With the development of in-vehicle multimedia technology, the functions of in-vehicle audio equipment are becoming more and more abundant, and the software design of audio systems is becoming more and more complex. Due to the installation characteristics of the current car audio, after the car audio is installed in the car, if the audio system software needs to be updated due to software upgrade or software maintenance, the car audio must be removed from the car, and then use a professional burning tool to complete the software update. The process is complicated, It takes a long time and the cost is high. In addition, the main control MCU (microcontroller) of the existing car audio system mostly adopts a single chip and the internal RAM (random access memory) is small. To achieve software upgrade, it is genera...

Claims

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Application Information

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IPC IPC(8): G06F9/445G06F12/02
Inventor 蒲洪彬李伟光朱霆奋彭子荣喻杰邹雪平
Owner SHENZHEN HANGSHENG ELECTRONICS
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