单片机定时中断的精确定时编程 里面介绍了5种定时中断的方法误差均不超过1个机器周期-SCM regularly interrupted regular programming precision inside of five species regularly interrupted the error not more than one machine cycle
时钟芯片PCF8563的51单片机程序
时钟不超过12MHZ,本程序已在51上试过,可以用-PCF8563 clock chip clock of 51 single-chip program does not exceed 12MHZ, this procedure has been tried in the 51
定时器中断实验代码, 定时器3进行0.1秒定时,每0.5秒改变一次P2,P3口的值以产生走马灯效果。-timer interruption experimental code, three timers for 0.1 seconds regularly, every 0.5 seconds to change a P2, P3 to the values I have merry-go-round effect.