| 单片机系统中LED显示译码驱动技术 |
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| 引用本文： | 包建华,刘海宽.单片机系统中LED显示译码驱动技术[J].重庆工学院学报,2007,21(15):50-53. |
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| 作者姓名： | 包建华 刘海宽 |
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| 作者单位： | 徐州师范大学电气工程及自动化学院,江苏徐州221116 |
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| 基金项目： | 徐州师范大学自然科学研究基金资助项目（04XLB06）. |
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| 摘 要： | 从译码驱动方式来看，常用的单片机LED显示译码驱动电路有并行译码方式、串／并转换方式、专用译码驱动方式，论述了这几种电路的实现方案，比较了每种方案各自的优缺点．着重介绍了专用译码驱动方式中LED显示驱动芯片MAX7219的工作原理与应用实例，指出专用译码驱动芯片在单片机系统显示应用中的前景．
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| 关 键 词： | 单片机 LED 译码驱动MAX7219 |
| 文章编号： | 1671-0924（2007）08-0050-04 |
| 收稿时间： | 2007-04-23 |
Research on Technology of Coding and Driving of LED in Singlechip System |
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| BAO Jian-hua, LIU Hai-kuan.Research on Technology of Coding and Driving of LED in Singlechip System[J].Journal of Chongqing Institute of Technology,2007,21(15):50-53. |
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| Authors: | BAO Jian-hua LIU Hai-kuan |
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| Affiliation: | School of Electrical Engineering and Automation, Xuzhou Normal University, Xuzhou 221116, China |
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| Abstract: | From the coding mode, there are several typical circuits of LED display and coding such as the parallel coding circuit, serial-parallel converting circuit, and special coding chip circuit in singlechip sys- tem. This paper discusses the implementing schemes for these circuits and compares the advantages and disadvantages of them. Fuaherraore, it introduces the principle and application of special display chip MAX7219, and puts forward the prospects of the special coding and driving chips in display application of singlechip system. |
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| Keywords: | singlechip LED coding and driving MAX7219 |
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