STM32F429 with WVGA LCD

[sam2]

Posted on June 19, 2014 at 09:57

I'm looking to drive an 800x480 LCD using an STM32F429 and the STemWin graphics library, due to the other peripherals needed from the chip, the SDRAM will most likely be limited to 16-bit. Could this be a serious performance bottleneck? And are there examples of this setup working effectively?

[Montassar BEN ROMDHANE_O]

Posted on November 05, 2014 at 09:44

Hi,

There is no examples with this configuration (resolution), BTW you can use the examples using the VGA resolution (640x480) and the SDRAM as Frame buffer and GUI allocation.Regards,Heisenberg.

[megahercas6]

Posted on November 05, 2014 at 22:44

for my smart solder reflow oven ( look up on youtube ) i was able to get around true 5FPS while running fastest 2MB SRAM with overclock. with segger UI, i was able to make it work and have example project, but is is very slow and choppy, only for static GUI that would work

Note i am running 15FPS refresh rate, if i double that, real FPS goes down, because SRAM is used more time by DMA2D for image transfer