Program the 8085 microprocessor IC

Discussion in 'Embedded Systems and Microcontrollers' started by sujem1, Jun 12, 2013.

  1. sujem1

    Thread Starter New Member

    Jun 12, 2013
    I have got a 8085 IC.Please tell me how can I program it.I want to interface all the components which are required to connect to the bare IC and program it myself, rather than using a 8085 development kit.
  2. LDC3

    Active Member

    Apr 27, 2013
    The 8085 has only the registers and the ALU as storage. The program and data are stored in external memory (ROM and RAM). As described in the datasheet for the 8085, the minimum system contains the 8085, 8155 (RAM with timer and I/O ports) and 8355 (ROM with I/O ports).
    You will need a programmer to program the ROM (I'm not sure how the ROM is programmed with the development kit). If you make a mistake, then you will need another chip.
  3. absf

    Senior Member

    Dec 29, 2010
    You may use 2764 (8K) or 27256 (32K) EPROM inplace of the 8355 ROM/IO. Any program you wrote has to be burnt into the eprom then it can run.

    Unless you have some kind of monitor program/OS working through the use of RS232 serial port. It would be tedious to run real codes in the 8085 hardware.

    Last edited: Oct 2, 2015