| 单片机在PDA中的应用 |
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| 引用本文： | 邓厥后, 田晓明, 时龙兴,.单片机在PDA中的应用[J].电子器件,2005,28(2):454-456,460. |
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| 作者姓名： | 邓厥后 田晓明 时龙兴 |
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| 作者单位： | 东南大学电子工程系,南京,210096;东南大学电子工程系,南京,210096;东南大学电子工程系,南京,210096 |
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| 摘 要： | 个人数字助理现在已经被越来越多的人使用。随着PDA功能的多样化，对主处理器通用输入输出口的数量也提出了更多的要求，然而主处理器GPIO的数量是有限的。因此为了缓解这种矛盾，可以选择有数据处理能力的单片机来进行GPIO的扩展。PIC16F676以其优异的性能和合理的价格成为众多单片机中的首选。文章通过对PIC16F676进行详细的介绍，给出具体的电路，最后通过对电路的分析得出单片机在GPIO口扩展、备份电池管理、电量检测和电池充电管理中的应用。
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| 关 键 词： | 单片机 PIC16F676 电源管理 |
| 文章编号： | 1005-9490(2005)02-0454-03 |
Applications of MCU in the PDA |
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| DENG Jue-hou,TIAN Xiao-ming,SHI Long-xing.Applications of MCU in the PDA[J].Journal of Electron Devices,2005,28(2):454-456,460. |
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| Authors: | DENG Jue-hou TIAN Xiao-ming SHI Long-xing |
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| Institution: | Department of Electronic Engineering; Southeast University; Nanjing 210096; China |
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| Abstract: | PDA (Personal Digital Assistant) has been used widely in business. More and more GPIO (General Purpose Input Output) pins are required in the design because of the diversification of the PDA's function. However, the number of the GPIO pins is fixed and limited. So the MCU (Micro programmed Control Unit) can be used to solve this problem. The PIC16F676 is selected because it has excellent performance and reasonable price. This article introduces the PIC16F676, then gives and analyzes the details of circuit, and gets the applications in the expansion of the GPIO, the management of the back-battery, inspection of the capacity of the battery and the management of the battery charging. |
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| Keywords: | PIC16F676 |
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