I wanted a easy start in the development with the evalutationboard. So i started to turn leds on , toggle them ....
But i can't find a simple way to toggle a onboard LED with sw1 or sw2 of of the board.
I set the systemclock
SIM_SCGC5 |= SIM_SCGC5_PORTA_MASK ;
set the sw1 as gpio
PORTA_PCR19 |= (PORT_PCR_MUX(1));
and set the resistors
PORTA_PCR19 |= PORT_PCR_PE_MASK;
If i press the button nothing happens and the GPIO_PDIR_PDI (19) don't have a high state
tmp=(GPIOA_PDIR & GPIO_PDIR_PDI(1<<19));