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digitalmg
digitalmg
Associate
November 25, 2008
Question

SPI Setting

  • November 25, 2008
  • 2 replies
  • 741 views
Posted on November 25, 2008 at 10:24

SPI Setting

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    2 replies

    gculliven
    gculliven
    Associate
    May 17, 2011
    Posted on May 17, 2011 at 12:52

    Hi there my name is Gavin and I live in scotland. I am trying to write an assembly program for a random dice. I was wondering if you woud know how to initialize the ports and use the timer with the thumb assembly? I have been scouring the net and can't seem to find what I'm lookin for. Many thanks for any help, Gav

    digitalmg
    digitalmgAuthor
    Associate
    May 17, 2011
    Posted on May 17, 2011 at 12:52

    In the example from Keil I have this setting for SPI

    /* Configure SPI1 pins: SCK, MISO and MOSI */

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;

    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;

    and

    SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;

    SPI_InitStructure.SPI_Mode = SPI_Mode_Master;

    for MISO the GPIO is output Alternate function push-pull,but the MISO is Master input Slave output,and for Master mode MISO is input,is OK to use this setting?,and why MISO is output?

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