I am using pcf8574 for interfacing parallel printer to my 89S8252-based System. I am using printer STB line to strobe 7 bit data to write a character to printer.
But i am not looking for busy/ACK pin of printer since
I have only 1 pcf8574 for this purpose.
I have given arbitary delay between two characters.
The problem I am facing is that some characters are not getting printed.
What is the solution?