Zeit,
Sorry I'm new to assembly.
would you mind telling me what a UART is?
I was thinking of assigning a logic 1 or 0 to the output pin for a period of time. However, as I test the output voltage, a "1" gives a +5V and a "0" gives 0V.
I looked up the 232 signal definition, a logic "1" should be -3V to -25V and vice versa for "0".
I really have no idea on what I could do.