Forum Discussion
Altera_Forum
Honored Contributor
15 years agoHi Antonio,
I presume that GPIO is the name of the array of your top level pins connecting to the sensor. So you have GPIO[0] which is an input and you are trying to drive GPIO[1] as an output. This is not allowed: all array signals must have the same direction. I had a similar case. If this is yours too, simply change the name: i.e. GPIN for GPIO[0] and GPOUT for GPIO[1]. Cris