TIM1_CH2 DAM问题

只看该作者 · 2019-4-25 10:16

DMA_SetCurrDataCounter(DMA1_Channel3, buffersize);
DMA_Cmd(DMA1_Channel3, ENABLE);
TIM_Cmd(TIM1, ENABLE);  //??TIM1
TIM_CtrlPWMOutputs(TIM1, ENABLE);//??PMW???

while(!DMA_GetFlagStatus(DMA1_FLAG_TC3)) ;

TIM_Cmd(TIM1, DISABLE);  //??TIM1
TIM_CtrlPWMOutputs(TIM1, DISABLE);//??PMW???

DMA_Cmd(DMA1_Channel3, DISABLE);
DMA_ClearFlag(DMA1_FLAG_TC3);

一直死在 while(!DMA_GetFlagStatus(DMA1_FLAG_TC3)) ;    出不来。