I would like to start learning how to program an STM32, because of this I bought the STM32L152C Discovery board.
It's a very nice board, full of goodies, but I would like to use just part of them: for instance I don't want to use the LCD which uses a lot of GPIOs, but I want to use the integrated 32.768 kHz quartz to perform RTC funcionalities.
Is it possible to use the GPIOs without interfering with the internal goodies? I mean, if I use a GPIO pin which is also used by the LCD, can it be a problem?(for example draining to much current)