基于NiosⅡ的学习型遥控器设计

Design of Learning Remote-controller Based on Nios Ⅱ

以Altera FPGA系列Cyclone EP1C12Q240C8器件为载体,通过SoPC技术构建嵌入式软核NiosⅡ处理器平台,运用Verilog HDL硬件描述语言设计等精度测量载波频率IP核、红外信号解调IP核、红外编码脉宽测量IP核和红外发送调制逻辑电路,以实现载波的精确测量、红外信号解调、脉宽测量和调制功能,并给出了外围硬件电路和软件设计方案。实验表明,该遥控器解决了单片机因时钟频率低而无法对载波频率进行测量的瓶颈,实现了对任何一款普通遥控器的按键编码学习,真正完成了学习型遥控器的学习功能。

Making the Altera FPGA Cyclone EP1C12Q240C8 as a carrier, the embedded platform with the Nios II processor is constructed by the SoPC technology, the equal accuracy measurement carrier frequency IP core, the infrared signal demodulation IP core, the infrared coding pulse measurement IP core and the infrared transmission modulation logic circuit are designed using the Verilog HDL to realize the accurate measurement of the carrier, the infrared signal demodulation, the pulse measurement and the modulation function. The peripheral hardware circuit and the software design scheme are given. The test result shows that it solves the problem of measuring the carrier frequency and realizes the pressing code learning for any common remote-controller, which achieves the learning function of the learning remote-controller.