本文介绍了一个简单的计算器的设计，该设计采用了现场可编程逻辑器件FPGA设计，并基于VHDL语言实现加减乘除功能，并用十进制显示在LCD1602上。-This article describes a simple calculator design that uses a field programmable logic device FPGA design and VHDL language based on arithmetic functions, and decimal display