单片机频率计算器 免除繁琐的计算 方便单片机编程-Singlechip frequency calculator for calculating cutting red tape to facilitate single-chip programming

记录开机次数的C语言编程，用Keil uVision2软件调试程序，再导入单片机调试。-Boot record number of the C programming language, software debugger with Keil uVision2, and then import the single-chip debugging.