hi ghuran,
In my previous post u did that minor changes only.
all the lcd function given in code which u have mentioned is correct.
Please see the below simulation which i have done, i think so u r suppose to missing to keep “resistor array”. i. e Pull up resistor.
b’coz Port P0 is open collector port so that it requires.
u do it this kind of arrangement it will definetely work.