摘要
在系统可编程技术(ISP)是20世纪90年代迅速发展起来的一种新技术。本文以8位微处理器AT89S51为例介绍了ISP的实现方法,研究并实现了一种基于RS-485总线的远程升级系统,系统通过上位机软件,对RS -485总线上的从机进行升级、调试。
In-system programmable technology (ISP) is the new technology developed in 1990s.Taking 8 bit MCU AT89S51 for example, the realizing method of ISP is introduced. Based on RS -485 bus, a Long-distance upgrade system is analyzed and realized. Through the software on PC, slave controller on RS-485 bus is upgraded and tested.
出处
《仪器仪表用户》
2006年第5期58-59,共2页
Instrumentation
关键词
ISP
远程升级
串口通信
ISP
Long-distance upgradeiSerial communication
