摘要
本文介绍了一种完整的带光电隔离的RS－485通讯接口芯片MAX1480并利用AT89C51构成的双机通讯电路对MAX1480A和MAX1480B的不同特性进行了全面的测试与分析，得出了实用性结论．文章中给出了完整的实验电路与测试程序。
This paper introduces the fullctional characters of the completely electrically isolated RS -485 serial data communication interface chip MAX1480A/B.The different characters between MAX1480A and MAX1480B were instrictly tested and analyzed by the two AT89C51 communication circuit and useful conclusions, complete experiment circuit and test programs were given.
出处
《微计算机信息》
2000年第3期82-84,共3页
Control & Automation
