Conflicting pins on TWR-K65 and TWR-LCD?

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Conflicting pins on TWR-K65 and TWR-LCD?

597 次查看
bastienjauny
Contributor II

Hi,

I'm using a TWR-K65F180M board, with TWR-ELEV and a TWR-LCD. I've successfully managed to display something on the screen using the FlexBus interface, base one the AN5095 but when I try to use the touchscreen signals, my display is ruined.

There seems to be a conflict on the pins used. I setup the SW5 to have access to the 4 GPIOs of the TWR-LCD touch, that are mapped to the PTC3, PTA6, PTE24 and PTE25 of the TWR-K65F180M. But the PTA6 is already used as the CLKOUT for the SDRAM controller.

Is there anything I'm missing? Am I forced to use the SPI interface for my display if I want to also use the touchscreen?

Thanks in advance!

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350 次查看
miduo
NXP Employee
NXP Employee

Hi,

Yes, you are correct. Fou your case, there really has pin function conflict issue and you should use the SPI interface as instead.

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