Pull-up

[Dutch]

Hi,

In my ATmega328P i needed to configure the reset input as I/O input. I can do that by setting the RSTDISBL high during programing so PC6 becomes an IO pin. works.
Unfortunately it looks like the pullup is still activated. i probably need to insert an small C-CODE block in my program to switch it off.

in the datasheet i found some example code but for me unclear what to put in the block. The datasheet

i tried something but all gave me an compile error who can show me

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[medelec35]

Hi.
With ATMEGA328
To enable WPU, set the pin for output high, then change to an input.
To disable WPU, set the pin for output low, then change to an input.

[Dutch]

Thanks medelec. trying that but to no luck yet. must be the pin is still connected to reset function. if i switch it off i need to high voltage reset the unit and dont have those tools. already have a couple i cant reprogram anymore. il try switching WPU for another pin on and off first.