How Can Design an interface for 8085 MP

Discussion in 'Homework Help' started by xxandroidx, Aug 25, 2015.

  1. xxandroidx

    Thread Starter New Member

    Dec 18, 2012
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    Hi All

    I need to Design an interface for 8085 MP, the design should contain an analog to digital converter and memory unit 1 KB × 8 which is created from 512×8 RAM?

    Thanks for Help me
     
  2. ScottWang

    Moderator

    Aug 23, 2012
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    Is this a homework?
     
  3. xxandroidx

    Thread Starter New Member

    Dec 18, 2012
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    Yes My friend
     
  4. ScottWang

    Moderator

    Aug 23, 2012
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    So, you have to find the datasheets for 8085 and adc and SRAM 512x 8 bits, and the data buffer, address buffer, you may need the decoder or some logic ICs and drawing a block diagram and the details circuit.
     
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  5. shteii01

    AAC Fanatic!

    Feb 19, 2010
    3,394
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    The basic info should be in uP textbook.

    The detailed info is in the datasheets.

    Bottom line. Reading is required.
     
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  6. xxandroidx

    Thread Starter New Member

    Dec 18, 2012
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    yes I have datasheets for all of them but I forget Calculation for this design and I didn't found it in the datasheets.
     
  7. xxandroidx

    Thread Starter New Member

    Dec 18, 2012
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    0

    my friend can you help me or inform me the name of books to find this design?
     
  8. JohnInTX

    Moderator

    Jun 26, 2012
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    1,029
    Google:
    MCS-85 User's Manual - you should have this already. It shows basic hookups and has detailed descriptions of the bus.
    SDK-85 User's Manual - The SDK-85 was an evaluation kit. The manual has full schematics, board layouts, a listing for the firmware monitor/loader and more.
    That should get you started.

    For the ADC, you'll have to be more specific about the chip and the interface it uses i.e. serial SPI, I2C, parallel I/O mapped, memory mapped, I/O port driven etc.

    Good luck.
     
  9. Papabravo

    Expert

    Feb 24, 2006
    10,148
    1,791
    One step at a time.
    1. Do you understand how the 8085 processor runs a bus cycle to read and write from a memory device and an I/O device?
    If the answer is yes, please describe the process to me.
     
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