AnsweredAssumed Answered

1920x1080i60 capture error in i.MX6

Question asked by hyungjun yoon on Aug 21, 2014
Latest reply on Aug 25, 2014 by hyungjun yoon

Hello.

I tested HDMI Interlaced input using the following patch for my board based on i.MX6DL. (OS : Android 4.2.2-1.1.0)

De-interlace Capture Device

In 720x480i60 , it works well.

but In 1920x1080i60, it cannot capture image. the following message is printed continuously.

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imx-ipuv3 imx-ipuv3.0: warning: disable ipu dma channel 8 during its busy state

imx-ipuv3 imx-ipuv3.0: warning: disable ipu dma channel 8 during its busy state

imx-ipuv3 imx-ipuv3.0: warning: disable ipu dma channel 8 during its busy state

imx-ipuv3 imx-ipuv3.0: warning: disable ipu dma channel 8 during its busy state

imx-ipuv3 imx-ipuv3.0: warning: disable ipu dma channel 8 during its busy state

imx-ipuv3 imx-ipuv3.0: warning: disable ipu dma channel 8 during its busy state

imx-ipuv3 imx-ipuv3.0: warning: disable ipu dma channel 8 during its busy state

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According to reference manual,  VDIC supports upto 1080i60.

But, in above message, idmac dma channel 8 is busy and channel 8 means  previous field.

I think it is lack of bandwidth for deinterlacing.

 

how do I resolve the problem ?

 

Thnak you.

 

Hyungjun Yoon

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