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一、概述为适应我国非自动电子衡器类如电子吊秤、电子平台秤以及测力称重仪器的需要,我们设计研制了多功能微电脑电子秤。它的机芯采用 MCS-48单片计算机,ICL7109 12位双积分 A/D转换器具有去皮、清零、零中心显示、自动零跟踪处理、净重/毛重转换、自动累计打印、负秤显示、过载显示、弱电源指示等功能。本文着重介绍 8039单片机与 A/D转换器、显示器、打印机的接口设计,完成电子秤各类功能的硬件设置,以及有关软件设计的一些问题和处理方法。
I. Overview In order to meet the needs of China’s non-automatic electronic scales such as electronic crane scale, electronic platform scale and load cell, we designed and developed a multi-functional microcomputer scale. Its movement using MCS-48 single-chip computer, ICL7109 12-bit dual integral A / D converter with peeled, clear, zero center display, automatic zero tracking, net weight / gross weight conversion, automatic cumulative print, negative scale display , Overload display, weak power indicator and other functions. This article focuses on 8039 MCU and A / D converter, monitor, printer interface design, complete electronic scales of various functions of the hardware settings, as well as some of the software design problems and solutions.