摘要
简介ＧＭＳ９７单片机的性能特点，并以此为核心介绍构成智能数字电压表的原理，对所用集成电路芯片ＭＡＸ７２１９、Ｘ２５０４５等作了必要说明。
The characteristics of the GMS97 single-chip processor, and the principle of the intelligent data voltmeter based on the GMS97 are presented in this paper. The characteristics of the Max7219 and X25045 are described as well.
关键词
单片机
电压表
V/F转换器
显示驱动器
设计
Single-Chip Processor, Data Voltmeter, V/F Convertor, Display Driver
