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covfefe's avatar
covfefe
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

I2C access from System-Console. How to?

Hello,

I have an Intel Stratix 10 GX Development Kit.

I am able to access the FPGA, SPI and DDR4 registers from the system console without issues.

However, I cannot manage to find a documentation showing how to access the I2C devices. Could someone point me to the right direction?

I have tried a lot of things along the lines of: 

master_read_32 {/channels/local/m/master_3} {0x00000074} 100

and other master/addresses, but only read 0 at the following offsets in the Intel Documentation.

Any help appreciated.

https://www.intel.com/content/www/us/en/docs/programmable/683674/current/i2c.html

 

5 Replies

  • RichardT_altera's avatar
    RichardT_altera
    Icon for Super Contributor rankSuper Contributor
    3 years ago

    I can't find much information on this as well.

    Could you help to share your qsys system so I can further investigate and discuss this with the internal team?


    Best Regards,

    Richard Tan


  • RichardT_altera's avatar
    RichardT_altera
    Icon for Super Contributor rankSuper Contributor
    3 years ago

    I believe the way to access the I2C is the same way as how you usually access the other IP (with debug agents).

    Claim the master service and access the memory ranges based on the IP base address.

    Best Regards,

    Richard Tan

  • RichardT_altera's avatar
    RichardT_altera
    Icon for Super Contributor rankSuper Contributor
    3 years ago

    As we do not receive any response from you on the previous question/reply/answer that we have provided. Please login to ‘https://supporttickets.intel.com’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.

    Thank you.

    Best Regards,
    Richard Tan

    p/s: If any answer from the community or Intel Support are helpful, please feel free to give best answer or rate 9/10 survey.