STM32F429 DMA2D Bilinear bitmap resize

Posted on May 12, 2015 at 20:23

Hello,

I wrote a small and very short DMA2D example to resize a bitmap using bilinear interpolation. The resize process is entirely handled using the DMA2D Blender with a low CPU resource usage.

The CPU, after a fast initial setup, is limited to cyclic update some DMA2D registers in response to the TC Irq handler. 

A short video showing the resize process on the STM32F429-DISCO and related source code link is avaliable for all interested people on https://www.youtube.com/watch?v=TgTxBIYUuVM

Regards, Alessandro.