【摘要】 介绍MEGA32 AVR单片机和键盘显示驱动芯片CH451的接口设计与实现方法,给出了MEGA32控制两片CH451的硬件设计和C语言软件实现。利用该设计能够实现键盘控制、数码管显示和发光二极管亮灭功能,硬件电路简单且不失扩展性,具有很大的通用性和可靠性。更多还原

【Abstract】 This paper introduces the interface design of AVR microchip MEGA32 and a keyboard display drive chip CH451,and presents realization of the hardware design of MEGA32 controling two CH451 and C program software.The design can realize keyboard control,digital display and LED flash functions.The hardware circuit design simple and has expansibility.Besides,the hardware design has much universality and reliability.更多还原