HI I have a stm32f103c8t6. I connected data pin of LCD to portA.& RS,RW,EN to PB0...PB2 . but my lcd is really confused. everyTime i send "111" to LCD it shows "333". everyTime i send "qqq" to LCD it shows "sss". and ... i test my library on stm32f103zet.it worked!!! I even changed the resistor(91K ohm) on LCD to 75K ohm because of working voltage stm32f103c8t6(3.3V) but the problem didn't solve. can you Help me?