| LED 矩阵连接控制技术 |
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| 引用本文： | 朱福成,陈跃. LED 矩阵连接控制技术[J]. 兵工自动化, 2012, 31(7): 85-87 |
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| 作者姓名： | 朱福成 陈跃 |
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| 作者单位： | 绵阳职业技术学院信息工程系,四川绵阳,621000;四川长虹电器股份有限公司技术中心变频控制研究所,四川绵阳,621000 |
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| 摘 要： | 针对传统LED显示屏显示复杂界面时MCU的选择范围很窄的问题,提出一种LED矩阵链接方法。该方法采用ULN2003A[1]阴极电流放大电路和KID65783AP[2]阳极电流放大电路,介绍行扫描、列扫描和全扫描3种扫描方式,并给出主程序流程图、中断服务程序流程图及其程序清单。实践结果证明:该设计大大减小了所需要的单片机输出端口数,降低了设计成本,并已在空调产品控制器多个产品的显示屏设计上大量运用。
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| 关 键 词： | LED控制 LED矩阵连接 LED显示屏 |
| 收稿时间： | 2013-03-13 |
Control Technology of LED Matrix Connection |
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| Zhu Fucheng , Chen Yue. Control Technology of LED Matrix Connection[J]. Ordnance Industry Automation, 2012, 31(7): 85-87 |
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| Authors: | Zhu Fucheng Chen Yue |
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| Affiliation: | 2 (1. Dept. of Information ＆ Engineering, Mianyang Vocation ＆ Technical College, Mianyang 621000, China; 2. Inverter Control Research Institute, Technology Center, Sichuan Changhong Electric Co., Ltd., Mianyang 621000, China) |
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| Abstract: | Aimed at the MCU＇s choice scope is very narrow when using traditional LED panels display complex interface, introduced LED matrix connection method with ULN2003Atl] as the LED cathode current amplifier, and KID65783APE21 as the anode current amplifier. Proposed three kinds of scanning mode including line scanning, row scanning and full scanning. Give the main routine flow diagram, interrupt service routine flow diagram and its program lists The practice result proved that, this design greatly reduced the output port numbers which needs, reduced the design cost, and massive used in the LED panels designing of air-conditioner controllers. |
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| Keywords: | LED control LED matrix connection LED display screen |
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