| 打印口作并行通信的VC编程 |
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| 引用本文： | 袁可风,王更生,张永贤.打印口作并行通信的VC编程[J].四川大学学报(自然科学版),2001,38(6):835-838. |
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| 作者姓名： | 袁可风 王更生 张永贤 |
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| 作者单位： | 华东交通大学电气信息工程学院,江西,南昌,330013 |
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| 摘 要： | 介绍了一种采用计算机打印接口与微机继电保护测试仪进行并行通信的VC编程方法，通过控制计算机的打印适配器及数据端口378H、状态端口、379H和控制端口37AH，与微机继电保护测试仪的接口板进行并行通信，以便控制微机继电保护测试仪的各种测试功能，VC编程实例是以控制定量器8254的调频程序和监测开关量输入来开展讨论的。
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| 关 键 词： | VC编程 并行通信 打印机 打印接口 计算机 |
| 文章编号： | 0490-6756(2001)06-0835-04 |
THE VISUAL C + + PROGRAMMING FOR PARALLEL COMMUNICATIONS BY LPT |
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| YUAN Ke-feng,WANG Geng-sheng,ZHANG Yong-xian.THE VISUAL C + + PROGRAMMING FOR PARALLEL COMMUNICATIONS BY LPT[J].Journal of Sichuan University (Natural Science Edition),2001,38(6):835-838. |
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| Authors: | YUAN Ke-feng WANG Geng-sheng ZHANG Yong-xian |
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| Abstract: | A method of Visual C programming for parallel communications between LPT and microcomputer testing devices for relay protection is presented. The communication with the interface board of microcomputer-testing-devices for relay protection by controlling the data port, status port and control port of LPT is realized,so that the functions of microcomputer testing devices for relay protection can be controlled. A visual C programming method on control time(8254) is prosented also. |
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| Keywords: | visual C programming parallel communications LPT |
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