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Special route "Error" in Encounter (error in Reading LEF technology)

QQEDA
Hi all,

When I trying to do Special route for Pad pins just after the power ring has done, the terminal shows the following err msg:

Reading LEF technology information...
*ERROR* "data_files/macro/dp_rf_256x8/dp_rf_256x8.vclef", line 374: cannot add PIN QA[0] to MACRO dp_rf_256x8 at or near "QA[0]"
*ERROR* "data_files/macro/dp_rf_256x8/dp_rf_256x8.vclef", line 386: cannot add PIN QA[1] to MACRO dp_rf_256x8 at or near "QA[1]"
*ERROR* "data_files/macro/dp_rf_256x8/dp_rf_256x8.vclef", line 398: cannot add PIN QA[2] to MACRO dp_rf_256x8 at or near "QA[2]"
*ERROR* "data_files/macro/dp_rf_256x8/dp_rf_256x8.vclef", line 410: cannot add PIN QA[3] to MACRO dp_rf_256x8 at or near "QA[3]"
*ERROR* "data_files/macro/dp_rf_256x8/dp_rf_256x8.vclef", line 422: cannot add PIN QA[4] to MACRO dp_rf_256x8 at or near "QA[4]"
*ERROR* "data_files/macro/dp_rf_256x8/dp_rf_256x8.vclef", line 434: cannot add PIN QA[5] to MACRO dp_rf_256x8 at or near "QA[5]"
*ERROR* "data_files/macro/dp_rf_256x8/dp_rf_256x8.vclef", line 446: cannot add PIN QA[6] to MACRO dp_rf_256x8 at or near "QA[6]"
*ERROR* "data_files/macro/dp_rf_256x8/dp_rf_256x8.vclef", line 458: cannot add PIN QA[7] to MACRO dp_rf_256x8 at or near "QA[7]"
*ERROR* "data_files/macro/dp_rf_256x8/dp_rf_256x8.vclef", line 473: cannot add PIN VDD to MACRO dp_rf_256x8 at or near "VDD"
*ERROR* "data_files/macro/dp_rf_256x8/dp_rf_256x8.vclef", line 488: cannot add PIN VSS to MACRO dp_rf_256x8 at or near "VSS"
A total of 10 errors.



I had check the QA pins in netlist, it is connected. I also try to re-generate the memory model again and again, but still fails with the err msg.

Does anyone know how to fix it?

please help, thanks ^_^
Parents

  • This typically occurs when you've read in a LEF already that has MACRO dp_rf_256x8 defined. The cell can only be defined in multiple LEFs if one LEF contains the logical/physical info and the other LEF contains the process antenna info. When reading in the LEF files you must specify the antenna LEF file after the LEF containing the logical/physical info. Here is the order the LEFs should be listed so they are read in the proper order:

    1. Technology LEF

    2. LEF containing logical and physical information for the cells

    3. LEF containing process antenna rules and information.

    Hope this helps,

    Brian

Reply

  • This typically occurs when you've read in a LEF already that has MACRO dp_rf_256x8 defined. The cell can only be defined in multiple LEFs if one LEF contains the logical/physical info and the other LEF contains the process antenna info. When reading in the LEF files you must specify the antenna LEF file after the LEF containing the logical/physical info. Here is the order the LEFs should be listed so they are read in the proper order:

    1. Technology LEF

    2. LEF containing logical and physical information for the cells

    3. LEF containing process antenna rules and information.

    Hope this helps,

    Brian

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