Hi Peter,

I would check out the www.lvr.com website stated above. The downloadable pages from the 8052 book are a good start for you. I'd also purchase the full book for more info and example circuits. I believe you might have the BASIC interpreter programmed into the chip already. That is the same part number I have for my chip containing interpreter. Inorder to use the interpreter, tie the EA chip high instead of low through a pull up resistor inorder to see if the interpreter is present. You must use a level shifter on the serial lines and some external memory present. Again refer to the LVR book for good info. It worked for me.


TTYL,

Dave Kaleta