| MCS51单片机与RS-232C串行口连接 |
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| 引用本文： | 刘焕平. MCS51单片机与RS-232C串行口连接[J]. 石家庄职业技术学院学报, 2002, 14(2): 27-28 |
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| 作者姓名： | 刘焕平 |
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| 作者单位： | 石家庄职业技术学院机电系,河北,石家庄,050081 |
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| 摘 要： | MCS51单片机本身的串行接口TxD，RxD为TTL电平，信号幅值较低，易受干扰只适合很近距离的通讯，对工控中广泛采用RS－232C串行接口与TTL间进行电平转换进行了分析说明，给出了串口通讯子程序。
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| 关 键 词： | MCS51单片机 RS－232C串行接口 MAXIM MAX232芯片 通讯协议 |
| 文章编号： | 1009-4873(2002)02-0027-02 |
| 修稿时间： | 2001-06-29 |
RS- 232C be coupled to MCS51 |
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| LIU Huan ping. RS- 232C be coupled to MCS51[J]. Journal of Shijiazhuang Vocational Technology Institute, 2002, 14(2): 27-28 |
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| Authors: | LIU Huan ping |
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| Abstract: | The TXD and RXD of serial prot in MCS51 are TTL.The sign is lower and always interrupted,so it is comfortable for communication of short distance.Thus RS-232C is widely used in controlled industry.The conversion of RS-232C and TTL is demonstrated.Sub program of connection between serial port is presented. |
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| Keywords: | MCS51 RS-232C MAXIM MAX232 |
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