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用CPLD构建红外遥控电路及其仿真
资料介绍
为了实现基于CPLD的红外遥控发射电路，文章在分析CX6122芯片红外遥控编码原理基础上，提出了用VHDL语言有限状态机构建该电路，用计数器、译码器和寄存器在状态机的St0-St4的协调控制下完成按键扫描，St5按键值的锁存，数据调制控制器在St6-St8协调下完成遥控信号引导码、数据码编码及调制．该电路经过仿真及硬件测试验证，能够实现遥控器的功能．
An infrared remote-control transmit circuit was designed, which was based on CPLD. Analysis of CX6122 chip for infrared remote-control signal code and implementation with VHDL finite state machine were mentioned. Scan key and latch of St5 key value were realized by the state machine of St0- St4 coordinated with the counter, decoder and register, the guide code and data code can be modulated by controller under St6 - St8 states. Simulation and hardware experiment indicate that the function of infrared remote-control can be achieved by the circuit.
部分文件列表
| 文件名 | 大小 |
| 用CPLD构建红外遥控电路及其仿真.pdf | 256K |
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