Drive method for embedded apparatus

An embedded device and driving method technology, applied in the direction of program control device, etc., can solve the problems of poor application program portability and real-time performance of embedded devices, unportable driver modules, and unportable application programs, etc. The effect of reducing the number of switching
CN1866202AActive Publication Date: 2006-11-22DATANG MOBILE COMM EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
DATANG MOBILE COMM EQUIP CO LTD
Publication Date
2006-11-22

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Abstract

The disclosed drive method for embedded device in protective-mode OS comprises: packing application program of different OS into uniform OS abstract interface function; registering the embedded device as OS-supported virtual device to build the mapping between virtual device kernel-state memory space and drive mode user-state memory space; calling the drive module and OS interface function by application program to interact with the embedded device for information control and / or data by memory mapping. This invention improves system running efficiency.
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Description

technical field

[0001] The invention relates to an embedded system, a real-mode operating system and a protection-mode operating system, in particular to a driving method for an embedded device in the real-mode and protection-mode operating systems. Background technique

[0002] Embedded systems are application-centric, computer-based, dedicated systems with tailorable software and hardware, which have strict requirements on functionality, reliability, cost, volume, and power consumption. It is generally composed of four parts: embedded microprocessor, peripheral hardware devices, embedded operating system and user's application program, and is used to realize functions such as monitoring or management of other devices.

[0003] The peripheral hardware device in the embedded system is the embedded device, which can be a certain communication port integrated on the microprocessor, such as FCC (fast communication controller) of Power PC (enhanced embedded processor), SCC ( Se...

Claims

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