Posted on May 17, 2011 at 15:10Hi,that sounds easy, but which register xor with what?i can't find a register which gives me the information in the manual!thanks

Posted on May 17, 2011 at 15:10Hi,i already checked this example.i do not understand how i can filter the source pin which initiated the interrupt.the interrupt routine says:{  if ((GPIO_ReadInputData(JOYSTICK_PORT) & JOYSTICK_LEFT_PIN) == 0x00)  { ...