how to enable internal pull ups resistors ?

[public2010]

I read the mikroC for AVR documentation and saw an example for the PIC MCU, but I can't figure out how I could do that with the mikroC for AVR. For example, in the case of an Atmega328 I would like to activate the pull-up resistors at the PD2 and PD3 pins and I don't know how to do that !! Please, can you give me an example code?

[filip]

Hi,

Please have a look at the ATmega328 datasheet (http://ww1.microchip.com/downloads/en/D ... asheet.pdf), section 13. :

If PORTxn is written logic one when the pin is configured as an input pin, the pull-up resistor is activated. To switch the
pull-up resistor off, PORTxn has to be written logic zero or the pin has to be configured as an output pin. The port pins are
tri-stated when reset condition becomes active, even if no clocks are running.

Regards,
Filip.

[public2010]

Thanks. I've seen this in the datasheet in the meantime.