STM32F4 to ILI9341 using uGFX

[GunterO]

Well, the 21MHz is working with short dupont wires. I measured with a scope, and the SPI clock is indeed 21MHz, but the clock wave is looking like a sinus/triangle wave. I guess it is probably the maximum we can hope for

[ivan47]

Guys, thank you very much. You saved me a lot of time.

[inmarket]

Can you please post the project file as I would like to add it or a variant to the repository. It would be good to have a KEIL example in there.

[GunterO]

Sure, you can find it here: http://www.otte.be/stm32/20150318_STM32F4-DISCO_uGFX.rar

Didn't use something like WeTransfer so the download will be available for a longer time.

All is include, to make sure it builds as it should be in Keil µVision (I used v5.13). I kept the naming scheme from Tilen Majerle (http://stm32f4-discovery.com/) and didn't move any of his or µGFX's library files around.

The LCD is something like this: http://www.benl.ebay.be/itm/2-2-inch-2-2-SPI-TFT-LCD-Display-module-240x320-ILI9341-51-AVR-STM32-ARM-PIC-/200939222521?pt=LH_DefaultDomain_0&hash=item2ec8e935f9

Connected like this:

LCD        STM32F4-Discovery
----------------------------
SCK    ->  B3
MISO   ->  B4 (not used)
MOSI   ->  B5
CS     ->  C2
RST    ->  D12
DC/RS  ->  D13

Added a video: https://drive.google.com/file/d/0B3B79fgnqTCaWXU4N3lSX1VKRHM/view?usp=sharing

[inmarket]

Thanks