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 "126.96.36.199.5 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.