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MamaSaru's avatar
MamaSaru
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1 month ago

Error(13135): Address/command pin is constrained to an illegal location

Hi,   I got strange error message from fitter. --- Error(13135): Address/command pin (ddr3_a[0]) is constrained to an illegal location (PIN_AG19). The legal location for this pin is PIN_Y17 --- ...
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yoichiK_altera's avatar
yoichiK_altera
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1 month ago

Hello Masaru

 

There is DDR3 example design targeting Cyclone10GX devkit(version B) and see no fitter error with placing ddr3_a[0] at PIN_AG19.

Please download the DDR3 design from below link. 

 

c10gx-10cx220yf780-revb-v22.4b94-v1.0\examples\ddr3x40

 

 

https://docs.altera.com/v/u/resources/838158/cyclone-10-gx-fpga-development-kit-version-b-dk-dev-10cx220-b-installer-package-v22.4-or-higher

  • MamaSaru's avatar
    MamaSaru
    Icon for Occasional Contributor rankOccasional Contributor
    1 month ago

    Hi,

    I didn't try fitting ddr3x40 example of target development board.
    It fits successfully without this error, and pin location was as expected.
    What would we take out from these results?

    Masaru