FMC conflicts with LCD controller on STM32H750VB

[Lyu.1]

Hi,Master:

MCU: STM32H750VB(LQFP100)

Application requirements: 

• Requires LCD controller to drive 7" (1024x600 pixels) TFT screen.
• Power-on initialization to load image resources from external flash to RAM and LCD buff requires RAM, which requires a lot of RAM, so externally expand SRAM and drive through FMC.

Problem: Some FMC pins are the same as the LCD controller, but they cannot be multiplexed and mapped to other pins, causing conflicts. For example, PE14 is the conflicting pin of LCD_CLK and FMC_D11

Expectation: Without changing the MCU model, is there a way to resolve this conflict and achieve application requirements?

thank you very much!​

[TDK · Accepted solution]

You can't have a pin shared between the two. You'll have to move to a different chip if you need them both. Or change the to a memory that doesn't contain the conflicts.