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Access to external flash memory for graphics [MPC5645S]

Question asked by Josep Gorgues on Mar 7, 2016
Latest reply on Mar 10, 2016 by Lukas Zadrapa

Hello.

 

I'm Working with MPC5645S and code warrior IDE 5.9.

I write a image to external flash memory, and then I try to use the "AHB address" to set the beginning address of layer data. (DCU.LAYER[6].CTRLDESCL3.R = 0x70000000)

However, the image is not read correctly, it seems that the MPC5645 is not fast enough to read the data . Should we active the DMA mode?

Please could you send an example code that use an external flash memory to save images?

 

Thanks,

Josep Gorgues

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