AnsweredAssumed Answered

Toggle timing of the double buffer in i.MX53 IPU

Question asked by torus1000 on Nov 28, 2016
Latest reply on Nov 28, 2016 by igorpadykov



I have a question about double buffering feature of i.MX53 IPU.

I know the FSU automatically toggles the DMA_CH_CUR_BUF_# to point on the correct buffer(EBA0 or EBA1) to be used by the channel.

However I would like to toggle it manually by using IPU_CH_BUFx_RDYx register when CH0 transfer done followed by IPU SYNC interrupt(IRQ=11) requested.


In such case when actual toggle will happen? It will switch immediately or wait something?


Can anyone help me? I want to confirm it for the safe screenshot feature.