void TIM4_TimerInit(u8 Timer4Time)
{
assert_param(IS_TIM4TIMERTIME_OK(Timer4Time));
TIM4_DeInit();//复位TIM4所有参数
TIM4_TimeBaseInit(TIM4_PRESCALER_16,Timer4Time);//16M/16= 1M CYCLE=1/1=1U 100us中断一次
//选择16分频 16M/16=1M 周期为1us
TIM4_Cmd(ENABLE);//使能计时器
TIM4_ITConfig(TIM4_IT_UPDATE,ENABLE);//使能TIM4中断
}
初始化时，调用：
TIM4_TimerInit(125)//定时125us中断一次STM8S TIM4库函数应用,布布扣,bubuko.com
原文地址：http://blog.csdn.net/chuangwu2009/article/details/25977797
