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Thread: Altera Avalon I2C Master Core w/Nios II

  1. #1
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    Default Altera Avalon I2C Master Core w/Nios II

    Hi all,

    I am trying to run the Altera Avalon Master I2C core from Nios II w/Eclipse.
    I am accessing the core registers in memory using "altera_avalon_i2c_regs.h"

    In the memory debug view, it seems that all of my calls are responded to in memory, other than IOWR_ALT_AVALON_I2C_TFR_CMD, which is the register that holds the data to be transmitted. It remains zero at all times.

    Any ideas, or any recommendations on other I2C cores ?

    Thanks,
    rabee

  2. #2
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    Default Re: Altera Avalon I2C Master Core w/Nios II

    It is a registre for write only, then always that you try to read, the funtion return 0000000

    Quote Originally Posted by rabee3 View Post
    Hi all,

    I am trying to run the Altera Avalon Master I2C core from Nios II w/Eclipse.
    I am accessing the core registers in memory using "altera_avalon_i2c_regs.h"

    In the memory debug view, it seems that all of my calls are responded to in memory, other than IOWR_ALT_AVALON_I2C_TFR_CMD, which is the register that holds the data to be transmitted. It remains zero at all times.

    Any ideas, or any recommendations on other I2C cores ?

    Thanks,
    rabee

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