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International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
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Application of ZLG7290 extended keyboard in ARM Linux system
LI Zhilin
（Chongqing Institute of Coal Science Research Institute，Chongqing 400037，China）
Abstract：Aiming at the manmachine interface for the key demand， resource requirements of small， modular， easy to transplant and other issues， a support for I2Cbus data format was taken to provide keyboard interrupt management chip ZLG7290 keyboard scanning used in ARM Linux system. The communication with host computer was realized by I2C bus, the lack of troditional method was overcomed, the hardware resource was saved. The research results indicate that the program convenient and flexible solves the above contradiction， it is stable， reliable， and it has practical application value.
Key words：embedded；driver；Linux；ARM；I2C；ZLG7290
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