| 基于EPM7064的多串口管理系统设计 |
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| 引用本文： | 汤少维.基于EPM7064的多串口管理系统设计[J].现代电子技术,2006,29(4):78-80,82. |
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| 作者姓名： | 汤少维 |
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| 作者单位： | 电子科技大学,通信与信息工程学院,四川,成都,610054 |
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| 摘 要： | 本系统基于ALTERA的CPLD EPM7064,针对嵌入式系统的精简特性,设计利用1个中断源高效管理多个串口。将普通PC主机上的一个USB接口扩展为8个通用串行接口,并在设备驱动程序中将这8个串口作为虚拟串口,使得主机可以如同操作本机串口一样通过USB口对串口设备进行数据读取。从而满足了单台PC主机同时连接多台串口设备的需求,而且保证了多个串口中断的无漏监测与服务。
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| 关 键 词： | 串口 CPLD 中断源 虚拟串口 |
| 文章编号： | 1004-373X（2006）04-078-03 |
| 收稿时间： | 2005-08-20 |
| 修稿时间： | 2005-08-20 |
Design of the Multiple Serial Ports Management System Based on the EPM7064 |
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| TANG Shaowei.Design of the Multiple Serial Ports Management System Based on the EPM7064[J].Modern Electronic Technique,2006,29(4):78-80,82. |
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| Authors: | TANG Shaowei |
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| Abstract: | The system based on the ALTERA CPLD of EPM7064,aims at the simplification speciality of the embedded system,the design(uses) single interrupt source to manage multiple serial ports.It can expand one USB port on PC into eight general serial ports,and in the device driver the eight serial ports are used as virtual serial ports,then the host can use these serial ports through the USB port as the common ones locally.This meets the need of the single PC host to connect with many serial devices at the same time. |
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| Keywords: | serial port CPLD interrupt source virtual serial port |
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