各位大侠，STM8S103
tim2、Tim4能定时GPIO输出最20ns脉冲吗？看有的朋友2M可以定时1us？怎么我用16MHz时钟不分频最小却只有4.4us ？
CLK->CKDIVR |= 0x00;
void TIM4_Init(void)
{
TIM4_EGR =0x01;
TIM4_PSCR =0x00; //设置时钟分频 2M/2=1MHz---1us
TIM4_ARR =0x01;
TIM4_CNTR =0x00; //计数器值
TIM4_CR1 |= 0x81;
TIM4_IER |= 0x01;
}
{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://www.xiaopingtou.cn/data/attach/logo/logo.png', '推荐 ggfx 的问题《STM8S103 Tim2、Tim4能定时GPIO输出脉冲吗？》','https://www.xiaopingtou.cn/q-28849.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
一周热门 更多>