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  1. #1
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    SPI EEPROM and GPS Receiver

    Hi,

    I have a question, I am intending to configure my GPS the LEA-M8T from my PC. However, after the first configuration, I want the device to be completely standalone.
    The controller for the board which I will design will be the MAX10. I am intending to store the configuration in EEPROM.

    I am considering 2 possibilities:
    1. Is it possible that I connect the MAX10 to EEPROM using SPI or I2C and then the configuration will be transmitted through MAX10 to my GPS again?
    2. Or is it easier to have a SPI based EEPROM and use multiple slave in which the LEA-M8T and the EEPROM work as the slave and my MAX10 works as the master?

    Thank you.

    Best regards,

    RH

    •   Alt10th March 2017, 10:33

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  2. #2
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    Re: SPI EEPROM and GPS Receiver

    It depends on your requirements.

    My personal preference is to not share the SPI (it's only pins/wires at most) and have each controlled separately one SPI for the LEA-M8T and one for the EEPROM (i.e. the MAX10 has two masters and a bridge between the two).

    If you add a UART or another SPI you can add that to the bridge/arbiter and be able to in-circuit reprogram the EEPROM and LEA-M8T configuration after it's built.



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