摘要
分析了基于单片机的实时时钟系统设计;设计了51单片机最小系统与时钟芯片的硬件连接;采用I2C接口实现实时时钟芯片PCF8653与MCU的通信连接;给出了对PCF8653的读写模块控制子程序。
This paper introduces the design of real-time clock system based on MCU, designs the hardware connection between the minimal system of 51 MCU and Real time clock （RTC）, uses I^2C interface to realize the RTC PCF8653 and MCU＇s communication connection and provides the PCF8653 read-write modutar control subroutines at the end of this paper.
出处
《机械制造与自动化》
2009年第6期141-142,共2页
Machine Building & Automation
