AT89C51-based 8051 in-circuit-debugger

by Chin-Shiuh Shieh on

  • ATMEL AT89C51 is an 8051 variant with 4KB on-chip flash ROM.
  • Schematic diagram(pdf)(ps) of a AT89C51-based 8051 in-circuit-debugger, designed by Chin-Shiuh Shieh.
  • Above design is intended to work with NoICE for 8051 V5.0.
  • "MON8051-AT89C51.HEX" is revised by Chin-Shiuh Shieh according to:
  • Photograph of a finished board: