PC104 embedded type computer based on ARM

Abstract

The present invention relates to a PC 104 embedded computer based on ARM. It has low power consumption ARM processor and PC 104 sequential controller, in which ARM processor is connected with power supply manager, clock manager and reset logic, SDRAM and FLASH memory, LCD and CRT display controller, standard serial interface, Ethernet interface, infrared interface, USB interface and CAN interface; and PC 104 sequential controller is connected with parallel interface extension, PS2 keyboard mouse and PC 104 extension bus. Said computer does not use radiator and fan, and adds ARM processor PC 104 bus extension, and raises the flexibility and compatibility of application system design, and has the programmable characteristics, so that it can meet requirements for various changes in application.

Description

Technical field [0001] The invention relates to an embedded computer, in particular to an embedded computer that uses a low-power ARM processor for central arithmetic processing and an international standard PC104 bus for expansion. Background technique [0002] At present, the mainstream embedded computers in the world are all single-board computer systems based on the X86 processor, which are mainly used in industrial control, communications, security, consumer electronics and other fields that have a close demand for high-performance processing. This kind of X86 processor-based embedded computer has two obvious shortcomings: one is that the X86 processor has high power consumption. Under normal circumstances, when the processor speed exceeds 100MHZ, the embedded computer's central processor must be equipped with a heat sink. Or add a fan to the system, which will inevitably lead to an increase in power consumption and volume of the entire embedded computer equipment, which can...

AI Technical Summary

Problems solved by technology

This embedded computer based on the X86 processor has two obvious shortcomings: one is that the power consumption of the X86 processor is higher, and generally speaking, when the processor speed exceeds 100MHZ, the central processing unit of the embedded computer must install a heat sink Or add a fan to the system, which will inevitably lead to an increase in power consumption and volume of the entire embedded computer device, which cannot meet the needs of many applications that have strict restrictions on volume and power consumption; the second is that the cost of the X86 processor is relatively high , under the same performance conditions, the cost performance of the X86 processor is obviously inferior to that of the ARM processor

[0003] With the emergence and improvement of ARM low-power processors, ARM processors are widely used in embedded devices, but because ARM processors are not directly compatible with the PC104 bus, so far there has been no expansion of the ARM processor and the PC104 bus. The emergence of successfully integrated application systems makes the current embedded system based on ARM processor lose the advantage of easy expansion of PC104 bus, so that the application range of this embedded system is greatly limited

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