CAJ | 학술논문

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．
위료실현기우CPLD적홍외요공발사전로，문장재분석CX6122심편홍외요공편마원리기출상，제출료용VHDL어언유한상태궤구건해전로，용계수기、역마기화기존기재상태궤적St0-St4적협조공제하완성안건소묘，St5안건치적쇄존，수거조제공제기재St6-St8협조하완성요공신호인도마、수거마편마급조제．해전로경과방진급경건측시험증，능구실현요공기적공능．
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.