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FHint's avatar
FHint
Icon for Occasional Contributor rankOccasional Contributor
4 years ago
Solved

I2C Master IP Core doesn't send ACK after receiving first of two bytes

Hello, I am using the Intel I2C Master IP Core to communicate with a temperature sensor (TMP75B) on a custom PCB including an Arria 10 GX FPGA. The hardware is not yet present therefore I am curren...
  • ShengN_altera's avatar
    ShengN_altera
    4 years ago

    Hi Florian,


    Check this previous KDB https://www.intel.com/content/www/us/en/support/programmable/articles/000086390.html.

    You can't observe the ACK signal from simulation is expected as the ACK and NACK is handled by the controller itself.

    However, you can use NACK_DET to check in case of master write to slave so that you'll know whenever there is no acknowledgement from slave. Hope it helps.


    Best Regards,

    Sheng

    p/s: If any answer from community or Intel support are helpful, please feel free to mark as solution and give Kudos.


ShengN_altera's avatar
ShengN_altera
Icon for Super Contributor rankSuper Contributor
4 years ago

Hello Florian,


Glad to hear that you find the solution provided helpful. I'll now transition this thread to community support. If you have a new question in the future, feel free to open a new thread to get the support from Intel experts. Have a nice day:)


Best Regards,

Qi sheng N.

Intel Customer Support