How to use the small iRAM to display a big picture by IPU on imx6q?

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How to use the small iRAM to display a big picture by IPU on imx6q?

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mach
Contributor I

Hi Guys,

 

My board is imx6q-sdb. I want to use the internal RAM as my specific framebuffer to display a big picture without using the DRAM. But the size of internal RAM (256k) is smaller than the size of the picture (> 1M). So I plan to split the picture into several parts, then use the IPU's double-buffer mechanism in "band mode" to display the part one by one. The related section is "37.4.12.2.5 Sub-Frame Double-Buffering (Band Mode)" in iMX6DQRM.

 

I'm not sure what I said is clear and correct, or there are other solutions I don't know. So please give me some guidance. Thanks.

 

Best wishes,

Mc

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b36401
NXP TechSupport
NXP TechSupport

It means that you can use double-buffering feature not for whole picture but only for some part you plan to draw.

Have a great day,
Victor

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