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Forum Post: AM335x LCD IO pin multiplexers

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I would like to disable the switching of the LCD output pins (to reduce EMC for some time) so I changed the pin mux setting for all the LCD line form MODE0 (LCD) to MODE 7 (=GPIO).

This works fine for most of the LCD lines, the output is fixed high or low except for :  LCD_DATA0 en LCD_DATA11 !

For every mux mode I set on these pins the LCD data is still availble on the pin.

Is this normal or is there any other way to switch off the  LCD function / switching on these lines ?

Same result on many boards.


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