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LLars1's avatar
LLars1
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7 years ago
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How to use OCT calibration modules on CYCLONE 10LP ?

Hi, I am currently trying to use the OCT calibration via output resistor feature on my CYCLONE 10 LP (10CL025YE144I7G), but i cannot find the IP needed for this. From the research I made I found o...
  • IDeyn's avatar
    7 years ago

    Hi LLars1,

    As I can see, there is no OCT IP core available for Cyclone 10 LP actually.

    And I will try to explain why. If you will create an example project, for example for Cyclone V,

    you will be able to include OCT IP core in your project. When I will suggest choosing

    "Calibrate OCT on power-up" from MegaWizard GUI. You will see that all other options, in that case, will be disabled.

    Now, if you look at Cyclone 10 LP datasheet (https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/cyclone-10/c10lp-51002.pdf)

    Table 8. Series OCT with Calibration at Device Power-Up Specifications for Intel Cyclone 10 LP Devices

    you can read - "OCT calibration is automatically performed at device power-up for OCT-enabled I/Os."

    So in your case, there is only one case for OCT calibration - at power-up, and there is, in that case, no need in IP core functionality.

    You should just use assignment "Output termination" in assignment editor and choose "with Calibration".

    Best regards,

    Ivan