【摘要】 一般的超声波测距仪可用于固定物位或液位的测量。该超声波测距仪采用CPLD(ComplexProgrammableLogicDe鄄vice)器件,运用VHDL(VeryHighSpeedIntegratedCircuitHardwareDescriptionLanguage)编写程序,使用MAX+plusII软件进行软硬件设计的仿真和调试,最终实现测距功能。更多还原

【Abstract】 Generally speaking, the ultrasonic range finder can be used to measure the fixed station and liquid station. This device makes use of the implementsof CPLD(Complex Programmable Logic Device) , writesprograms withVHDL(Very High Speed Integrated Circuit Hardware Description Language), and utilizes the software of MAX+plus II to carry out the simulation and debug.更多还原