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Multi-mode startup embedded system

An embedded system and multi-mode technology, applied in the direction of program loading/starting, program control devices, etc., can solve the problems of embedded systems that cannot work normally, and achieve the effect of enhancing fault tolerance

Active Publication Date: 2010-04-28
苏州国芯科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is an outstanding shortcoming in the embedded system of single boot mode, that is, once the BOOT Device is damaged, the embedded system will not work normally.

Method used

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  • Multi-mode startup embedded system
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0036] Embodiment: A kind of safe embedded system that multi-mode starts

[0037] figure 1 It is a block diagram of the system principle of the present invention, from figure 1 It can be seen that the system consists of the following components:

[0038] 1. Chip mode configuration port 101, which is composed of two signal input terminals (of course, it can also be three or four signal input terminals), and any one of the multi-mode startup modes can be selected through the configuration signal of the signal input terminals . The chip mode configuration port 101 is used to configure the startup mode of the chip.

[0039] 2. The configuration control register 102 , which is connected to the chip mode configuration port 101 and used to map the configuration information of the chip mode configuration port 101 .

[0040] 3. The internal memory 106 is used to store programs and data when the embedded system starts and runs.

[0041] 4. The external memory interface 105 is used ...

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PUM

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Abstract

The invention discloses a multi-mode startup embedded system, comprising a chip mode configuration port (101), a configuration control register (102), an internal memory (106), an external memory interface (105), an I / O communication module (104), a CPU (103) and a system bus (107). After the system is electrified, the startup mode of the system is determined according to information of the chip configuration port, wherein the startup mode of the system comprises startup from the internal memory, startup from the external memory, startup from the external communication equipment and the like. Users can select the startup mode of the embedded system through the chip mode configuration port. The invention not only can realize multi-mode startup of the embedded system, but also can realize multimode upgrading of system firmware, and meets the requirement of upgrading once again and multiple applications on the embedded system currently.

Description

technical field [0001] The present invention relates to an embedded microprocessor application system (referred to as "embedded system"), in particular to a multi-mode start-up embedded system. The system supports chip booting from internal memory, external memory, external communication equipment and other modes of booting, which brings great convenience to the specific application of the chip. Background technique [0002] With the development of microelectronics technology, embedded systems have been widely used in consumer electronics, network communication, industrial control and other fields. The embedded system is different from the PC system. It is centered on the application. The software and hardware can be customized according to the different applications. It is suitable for computer systems with comprehensive considerations such as power consumption, reliability, and cost. in one system. [0003] At present, a typical embedded system includes CPU, RAM, BOOT De...

Claims

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Application Information

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IPC IPC(8): G06F9/445
Inventor 王忠海林雄鑫肖佐楠郑茳
Owner 苏州国芯科技股份有限公司
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