This is my first microcontroller project. An AT89C52 microcontroller with the MCS BASIC-52 located in internal 8K of ROM. 8K of STATIC RAM and 8K of NVRAM are used for program execution and program storage
A 82C55 peripheral interface feeds the LCD display. A AD558 an 8-bit digital-to-analog converter was added and has yet to be used.The Microcontroller idea book by jan Axelson provides pretty much all of the circuitry that I used.
The MCS BASIC-52 Language was made public domain by Microsoft a while ago. BASIC-52 was loaded into the 89C52 ROM using an Iquana labs PG302 interface and a ADT87 zif adapter.
All of this software and a lot more info is on the web. I Have the BASIC-52 instruction manual as a Word file and a small number of programmed/ unprogrammed 89C52 chips available for the cost of shipping. My email address is cbet@aol.com. She ain't pretty, but she works.
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