摘要
本文介绍模/数转换芯片ADC0809(0808)引脚的各种接法和与TP801微机相接的多种硬件连接图及其采样程序。並综合介绍了A/D片定时、查询、中斯三种方式采样的常用线路与程序。最后介绍了多块A/D芯片联用的接法与采样程序。
This paper introduces the method for connecting lines for analog-to-diglal converter ADC 0809(0808) and the circuits for connecting hard wares to a TP801 microcomputer together with sampling program; a general form of connection and program in using A/D converters in circuits for fixtime polling and interrupt sampling. The circuit and program for connecting more than one A/D clups in a sampling system is discussed at the end of the paper and may be of some help to those who uses ADC 0809(0808).
关键词
模/数转换器
ADC0808
使用
annlog-todigital-converter
fixed time
polling
interrupt
