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Is there a way to change pins for FMC

MNapi
Senior III

I spent last 2 weeks trying to get 3.97inch 16BIT Module NT35510 to work with STM32L4S9ZIT6

I followed pin connection with diagram found somewhere. There is PIN CS on LCD with is connected to FMC_NE4.

FMC_NE4 is kept high, while CS is LCD enable and should be LOW (chip select)

FMC_A16 is connected to RST on LCD. FMC_A16 is kept low and it keeps resetting the LCD. I need FMC_A16 to be HIGH all the time. I see that FMC_A16 goes UP and DOWN depending what the FMC is doing, idle or reading/writing.

Is there any way to have FMC_NE4 LOW and FMC_A16 HIGH permantly ?

1 REPLY 1

>>Is there any way to have FMC_NE4 LOW and FMC_A16 HIGH permanently ?

Configure the pins as GPIO's and set them how you want?

The address bus only has the be valid at specific points in the whole cycle. Normally devices latch based on -CS, -RD, -WR, etc.

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