caching use dma?

[Ezgi]

Is caching using DMA while the bitmap is caching in Touchgfx?

[waclawek.jan]

You mean the data/instruction cache on AXI in 'F7?

It reads/writes portions of memory autonomously, but it's not the same as what the DMA units do. These reads/writes are completely transparent to the user, no need to configure/start them.

JW

[Ezgi]

I'm actually asking what is used when caching the bitmap.

[waclawek.jan]

Where? What bitmap?

JW

[Ezgi]

In Touchgfx, I want a bitmap to cache. How does caching read the bitmap and write?

[TDK · Accepted solution]

No, DMA isn't a storage space (of any significant size), so it's not using that.

Looks like it's using SDRAM in this example. Probably uses whatever memory you have set up.

https://support.touchgfx.com/docs/development/ui-development/touchgfx-engine-features/caching-bitmaps

[scottSD]

Are you talking about a dynamic bitmap? Your question is not very clear.