Hello there, my problem goes like this, I am not getting the output that I expected. I am using Turbo C/C++ and I am issuing an outport command to signify that I'm writing a data or sending data to the lcd. I am using inport command to retreive or get the lcd status. Let say I send a data of 0x00H, when I look at the logic analyzer, the control lines are correct and so are the datalines but however when I issue an inport, I am not getting the output (in the datalines) I saw previously. Its like this

outportb(0x180,0x00)

when I issue this command, I'm saying to the lcd to enable the enable pin, RW is low (write) and RS is low.

When I issue this command

inportb(0x180)

I'm saying that enable is on, rw is high and rs is low.

Before I send a data I make sure that the LCD D7 is low. I have also read the tutorial in this site.

Thanks and hoping you will respond to my inquiry.