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Port reading issue

Question asked by Evgeny Kochubey on Dec 31, 2017

Hi folks, need help with reading port of MC9S08LL16

the PORTA pin1, PTADD_PTADD1 =0 configured as input, and has external pull-up 10k to 3V3 power rail, 

but I always get 0 when try to read the PTAD_PTAD1. 


Somebody knows what is problem, maybe need any special conditions to read this pin?