| AVR单片机的串口转FSK的通信模块设计 |
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| 引用本文： | 汪波. AVR单片机的串口转FSK的通信模块设计[J]. 单片机与嵌入式系统应用, 2012, 12(2): 22-24,28 |
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| 作者姓名： | 汪波 |
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| 作者单位： | 湖北经济学院信息管理学院,武汉,430205 |
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| 基金项目： | 湖北省教育厅科学研究计划（项目编号：B201022010）;湖北省高校优秀中青年科技创新团队项目（项目编号：T200902）. |
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| 摘 要： | 以AVR单片机ATmega48芯片及CMX865调制／解调芯片为硬件架构规范了对外串口通信协议，采用模拟口线的方式对CMX865寄存器进行操作，设计了一种串口转FSK的通信模块，实现数据传输方式的转换。硬件电路以AT—mega48微处理器为核心，并利用C／BUS总线控制CMX865芯片，实现FSK／DTMF收、发功能；...
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| 关 键 词： | AVR单片机 ATmega48 CMX865 串口 FSK |
Adaptor between FSK and Serial Ports Based on AVR Microcontroller |
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| Wang Bo. Adaptor between FSK and Serial Ports Based on AVR Microcontroller[J]. Microcontrollers & Embedded Systems, 2012, 12(2): 22-24,28 |
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| Authors: | Wang Bo |
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| Affiliation: | Wang Bo (Department of Information Management, Hubei University of Economics, Wuhan 430205,China) |
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| Abstract: | The AVR microcontroller ATmega48 chip and CMX865 modulation/demodulation chip for hardware architecture specifies the external serial communication protocol. It operates CMX865 register with line analog port. The paper designs serial-to-FSK communica- tion module to achieve data transmission conversion. The hardware circuit takes ATmega48 microprocessor as core and controls CMX865 chip with C/BUS to achieve FSK/DTMF sending and receiving functions. External circuit is composed by ring detection and FSK data transceiver interface circuit. The module software design includes serial communication and FSK communication programs, and serial communication program achieves serial communication commandos packets sent/received packet parsing/processing. FSK communication program uses interruption to send and receive FSK data. |
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| Keywords: | AVR microprocessor ATmega48 CMX865 serial port FSK |
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