lampii
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Posts
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Hi @Joel Bodenmannand @inmarket, I am using an STM32F429VIT which has plenty of flash and ram along with sdcard using the internal fatfs. My images are being loaded from the sdcard by the way. I solved my issue by changing the GFILE_MAX_FILES define and everything is working nicely now albeit loading images is a bit slower than expected. I assume loading images straight from flash would be much faster but my home brew implementation of chan's fatfs and drawing was atleast 2.5x as fast without DMA. I was wondering if there is anyway to get ugfx to stream from the sdcard via DMA? I have the 4-bit bus connected so i reckon it may speed up the drawing of elements significantly. Otherwise I can wait until all my UI is flushed out before migrating it to flash. I'm afraid I would be stressing my flash writing so much image data to it. Thank you for pointing me to the correct point in the documentation. I will take a look as I am bound to hit the limits at some point =).
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Hi Joel, What I was looking for was the board implementation but i must have missed the files posted by @Constantine. What I am experiencing is a mismatch between my LCD's 0,0 and what ugfx thinks it's 0,0 is. In other words, I get garbled image data due to drawing to the wrong locations. I am going to attempt his solution of re-working 0,0 via math rather than changing the LCD's gram write direction registers and see if i manage to get it working that way. Thanks for your response! I really appreciate the help.
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I am loading several bmps for my background and button images but i seem to be hitting a hardfault when I use too many of them. Does uGFX store loaded images in internal RAM or are they dawn directly to the screen?
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Hi Constantine, Would you be willing to provide your GDISP_CONTROL_ORIENTATION cases from your implementation? I too was struggling with the ILI9325. After porting over my init code, it all seems to work but my orientations are wrong and text doesnt render properly. I have a feeling my initialized rotations are different from what uGFX expects. Thanks!