Question

英语翻译本文主要以软件编程来实现时间和日期的显示及调时功能,没有使用专门的时钟芯片,硬件电路简洁,所用元器件少,成本较低

Answer 1

This article mainly realizes the time and the date demonstration and the timing function by the software programming,does not have the use special clock chip,the hardware circuit to be succinct,uses the primary device to be few,the cost is low.The hardware part divides into CPU,the pressed key electric circuit,the reset circuit,the display circuit as well as the electrical power system electric circuit.The software part divides into the master routine,the timer interruption subroutine,the demonstration subroutine as well as the timing subroutine.