摘要
设计了一种基于USB带自冷启动功能的STC单片机下载器,文中对下载器的电路原理、软件编程以及关键控制信号进行了详细阐述和分析。下载器以STC15F104E作为主控单元,通过解析计算机USB端口与CH340T芯片通讯的MODEM联络信号,适时对目标单片机的电源进行控制,对其进行冷启动引,以实现单片机目标代码的自动下载,从而有效地解决目前笔记本和台式电脑没有RS232串口,无法进行STC单片机程序下载的问题。
This paper presents a USB-based cold start function with self-STC microcontroller Downloader, the text of the circuit principle downloader, software programming and critical control signals are described and analyzed in detail. Downloader to STC15F104 E as the main control unit, by analyzing the computer＇s USB port to communicate with chip CH340 T MODEM communication signals, timely and on target device power control, its cold start lead to SCM object code automatically downloaded, thereby effectively to resolve the current notebook and desktop computers no RS232 serial port, can not be STC microcontroller program download problem.
出处
《电子设计工程》
2016年第15期168-170,共3页
Electronic Design Engineering
基金
湖南省科技计划项目(2013GK3133)
湖南省教育厅科学研究项目(15C0914)
湖南铁路科技职业技术学院校级课题(HTKY-KT2015-20)
