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STM32F407 STEMWIN LOADING IMAGES FROM SD CARD SLOW

Question asked by paveglio.giovani.002 on Oct 15, 2015
Latest reply on Oct 30, 2015 by paveglio.giovani.002
Hello!

I am working in a project that uses a STM32F407 and 7" TFT LCD with SSD1963 controller, after hard work to put the LCD running and some corrections on the board, but now I don't know if what we are trying to do is the better approach for the application.

We had done some images to use as background of our app, but the 192KB of RAM is not enough for all images if we convert to c files, then we think to use SD card to store all images and loading them at runtime, but decompress the image and loading is very slow take about 2 seconds.

Another thing that we think is the use of a SDRAM of 16MB, but I not sure that this will solve our problem.

So I need help of anyone that has passed for this situation or something simila and could give us the better way to solve the problem.

Thanks,
Giovani

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