| 基于MC9S12XS128的自动电阻测试仪设计 |
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| 引用本文： | 余红英,喻洁,杨杰.基于MC9S12XS128的自动电阻测试仪设计[J].长春师范学院学报,2012,31(9):3-8. |
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| 作者姓名： | 余红英 喻洁 杨杰 |
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| 作者单位： | 芜湖信息技术职业学院,安徽芜湖,241003 |
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| 基金项目： | 安徽省高等学校省级质量工程“电气自动化技术特色专业”建设项目资助(2008TSZY53);中央财政支持的计算机应用职业教育实训基地建设项目(34093031510);安徽省教学研究项目(20101289) |
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| 摘 要： | 本文以飞思卡尔公司的16位微处理器MC9S12XS128为控制芯片,用4×4矩阵键盘作为人与系统对话设备,用自带汉字库的带背光的12864LCD为显示器,设计了自动电阻测试仪。测试仪实现了100Ω、1KΩ、10KΩ、10MΩ四档位的精确测量,且在各档位间能实现自动切换;同时具有电阻筛选功能;测试仪还设计了自动测量电位器阻值随旋转角度变化的装置,能动态显示电位器阻值随旋转角度变化的曲线。系统性能稳定,测量精度高,具有相应的灵活性和实用性。
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| 关 键 词： | MCSXS微处理器 电阻测试 自动换挡 电阻筛选 液晶显示 |
Design of Automatic Resistance Testing Instrument Based on the Freescale MC9S12X S128 MCU |
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| YU Hong-ying,YU Jie,YANG Jie.Design of Automatic Resistance Testing Instrument Based on the Freescale MC9S12X S128 MCU[J].Journal of Changchun Teachers College,2012,31(9):3-8. |
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| Authors: | YU Hong-ying YU Jie YANG Jie |
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| Institution: | (Wuhu Vocational College of Information Technology,Wuhu 241003,China) |
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| Abstract: | This paper introduces a design of automatic resistance testing instrument based on Freescale 16-bit microprocessor MC9S12XS128.Its monitor is used by backlight 12864-LCD display containing Chinese character library,using a 4×4 matrix keyboard as a dialogue equipment between person and system.The testing instrument realizes accurate measure of 4 scales of resistance:100Ω,1KΩ,10KΩ and 10MΩ.It can be shifted to one another automatically in the scale of 100Ω,1KΩ,10KΩ,10MΩ.And it has the function of resistance screening.The instrument has the device which enables automatic measured resistance value of the potentiometer to change with the rotating angle,and the curves of the changing resistance value are displayed dynamically on the 12864-LCD monitor.This systemhas steady performance and measuring accuracy reaches design requirements. |
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| Keywords: | MC9S12XS128 microprocessor resistance testing automatic shifting resistance screening liquid crystal display |
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