• GPIO as Input Pull Up / Pull Down
    The reference manula says i can configure the STM32 GPIO as either Input pull-up or as Input-pull-down. But i do not see any register which configures this. Can anybody clarify this. Regards...
  • pull down resistor
    im using lpc1768 i connected button to P0.5, led to P0.4 initially the button pin should go low, if i press the button P0.5 should get high but the pin is always high i checked the pin with multimeter...
  • Pull up to lpc2148
    Can i cannect 5 volt source to 3.3 volt gpio of lpc2148 through pullup resister
  • Avoid pull-down resistor
    How can I avoid pull-down resitors during reset and configure de C167CR manually? After reset the microcontroller I can see with the scope that data bus signal are not good, it falls down slowly and...
  • meaning of weak pull-ups
    Hello, can anyone please explain me the purpose of weak pull-ups resistor of a port? What are they used for? thanx in advance, M.