Microcontroller › 8051 › RFID BASED TOLLPLAZA › hi ghuran, Please use port 0
April 6, 2014 at 6:11 am #11475
Please use port 0 for Data lines that is D0-D7.
I mean to say instead of sfr lcd_data_pin=0xA0; use address 0x80.
it will work. u try this & let me know.