Warning of unrouted pins on FlexBus Peripheral Config

[gsinde]

I am using the MK22FN512xxx12 (LQFP100) processor connected to an Intel 8080 type LCD interface.

16 bit Data FBD[15..0]

1 bit GPIO for Register / LCD Data control

Rd, Wr, CS,CLK

I am using the Flexbus setup at 16 bit mode and the configurator tool is giving me warnings about the higher Flexbus pins 16,17,18,19,20,25,26,27,28,29,30,31 which I am not needing.

Is this normal?

[FelipeGarcia · Accepted solution]

Hi Gary,

MCUXpresso Config Tools is expecting you to configure address bits in FB_AD but in your case using an LCD you don't need them.

Your program should work fine despite the warnings about those pins.

Have a great day,
Felipe

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