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Original question:

AFE7950: SPI Command interface development

AFE7950: SPI Command interface development

Dhruva Anantha Datta
Prodigy 70 points

Part Number: AFE7950

Hi,

I realize that the SPI controller provided is specific to AMD/Xilinx systems. Can you provide any guideline to develop the SPI using a soft controller.

Thanks, Dhruva

  • 0
    TI__Mastermind 18431 points

    Hi Dhruva,

    Like you mention the reference designs that we have available are for a SPI controller for AMD/Xilinx systems. To do this in another system you would need to follow the steps given below:

    1. Generate a log file containing all of the register writes/readchecks/polls that are required to bringup the AFE.

    2. Create a SPI driver to perform the SPI writes, readchecks, and polls.

    3. Use the generated log file to program the AFE.

    4. For device control after configuration C API functions can be used. These are installed with the GUI and can be found at the following location: C:\Users\<UserName>\Documents\Texas Instruments\Afe79xxLatte\lib\Afe79xxLibraries\AFE79xxLibraryPG1p0\AFECLibs\CAFE

    Regards,

    David Chaparro

  • 0 in reply to David Chaparro
    Prodigy 70 points

    Hi David,

    Thanks for the reply,

    Is there any suggested way to implement the SPI controller (specific to AFE) apart from following the log files.

  • 0 in reply to Dhruva Anantha Datta
    TI__Mastermind 18431 points

    Hi Dhruva,

    The log file contains all of the register writes/readchecks/polls that are required to bringup the AFE, so using the log file is the only way to program the AFE correctly.

    Regards,

    David Chaparro