STM32F469I - Graphics Issue? (Loading Images from Memory)
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‎2017-07-15 03:01 AM
I have recently got a STM32F469I-DISCOVERY board to start embedded development on STM32 family. To begin, I have downloaded the STM32F4 firmware package and started to test some of the demo applications provided. It seems that there is a graphics issue with some of these applications, specifically when loading images from the memory.
To give you some context, when I run the demo, the ST-Life Augmented logo as well as the menu items are drawn distorted (1-DemoScreen.png). When I run an application like LCD_DSI_ImagesSlider, the result is even worse with all buggy, blue-green images (2-ImageSlider.png). What do you think might be causing this, and how can I solve this?
Things I have tried/thought so far:
1) The LCD display is connected via CN10 connector. The connection seems intact and the display works totally fine.
2) In fact, I wrote a test application to test the screen colors, by drawing different colored circles all over. (3-GraphicTest.png) It seems that it can display all colors properly.
3) The loaded images seem to be stored in .h files in binary form (eg. uint32_t array of [384000] points). My current guess is that the memory address these images are aligned to, or how they are interpreted/read, is not right. This might be due to something happened to the the MCU, or a misconfiguration due to my IDE/toolchain settings.
4) As a side note, I am using SW4STM32 out of the box. I have updated the firmware of my device, however this have not solved anything.
Any ideas?
Thanks in advance,
-YiÄŸit
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‎2017-09-12 07:03 AM
Hi - I have the exact same issue. Pre-loaded (out of the box), the graphics looked fine - but then when I actually built the demo application and loaded it on to the Discovery board, I ran into this issue. Were you able to trace the root of the problem?
Thanks.
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‎2017-09-12 09:13 AM
>>Were you able to trace the root of the problem?
You need to load contemporaneous image data into the QSPI FLASH using the External Loader
Up vote any posts that you find helpful, it shows what's working..
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‎2017-09-12 09:27 AM
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‎2017-09-12 09:44 AM
Hi both,
Thanks for the message. Just wondered if you could help me with this error? Thanks.
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‎2017-09-12 10:05 AM
Hi all,
How odd - the ST-LINK doesn't like it when I program via External Loader -> .. -> Program but using the Program/Verify button on the toolbar works!
Thanks,
Meenal