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bob2399
Visitor II
January 14, 2008
Question

SPI SSN pin

  • January 14, 2008
  • 2 replies
  • 978 views
Posted on January 14, 2008 at 13:39

SPI SSN pin

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    2 replies

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    bob2399Author
    Visitor II
    January 7, 2008
    Posted on January 07, 2008 at 16:52

    hello everyone! i am currently looking into using the SPI port on the STR712FR2T6 part. i noticed that the SSN pin is always show as pulled HIGH when the uC is the Master. am i to assume that this SSN pin cannot be used as a PORT0 output pin? It cannot be used as the chip select to an SPI EEPROM? so its wasted during Master mode? thanks for any info.

    Bob Zeranski

    C
    christophe239955_st
    Visitor II
    January 14, 2008
    Posted on January 14, 2008 at 13:39

    The SS on the master must be deasserted high :o You have to use another GPIO pin drive the EEPROM chip select line .

    Chris.

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