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  3. Conformal-LP : Understanding liberty files.

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Conformal-LP : Understanding liberty files.

nitint08
nitint08 over 12 years ago
Hi

Conformal can read liberty files but the relevant lowpower special cells
are not recognised until those are specially specified with define_* cpf command.

Since Conformal has all the information of library cells (i.e. AON-cells, retention-
cells, power-switches, iso-cells,level-shifters etc) thus it would be more benefical
if this information can also be provided to the user so that he can correct his
list of cells via relevant define_* commands.

Regards
NitinT
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  • NTlp
    NTlp over 12 years ago
    Yes, forsure i would ask for 12.1 but currently getting following with 9.1

    Please tell is this expected behaviour.

    ######################################

    SETUP> read design TEST/test2.v

    // Command: read design TEST/test2.v

    // Parsing file TEST/test2.v ...

    // Error: TEST/test2.v:30 Module 'BASIC_ISO' is referenced but not defined.

    SETUP> read library -liberty test2/cell1.lib -lp

    // Command: read library -liberty test2/cell1.lib -lp

    // Parsing file test2/cell1.lib ...

    Translating Liberty file "test2/cell1.lib" to CPF file "/tmp/translated_cpf_from_libs_test2_cell1.lib_29965"

    // Warning:

    Command lib2cpf timeout after 5 second idling.

    // Error: Fail to run /remote/tools/linux/cadence/CONFRML91/bin/lib2cpf

    // Note: Read Liberty library successfully

    SETUP> report isolation cell

    // Command: report isolation cell

    // Error: Design does not exist. Please read design first.

    SETUP> report library data

    // Command: report library data

    -------------------------------------------------------------------------------------------------------

      ID Name                                   Cost    Ins    Ref    TOT   DFF  DLAT   BUF  NOT BBOX  UDP

    -------------------------------------------------------------------------------------------------------

       1 AND1                                      0      0      0      1     0     0    0     0         

       2 BASIC_ISO                                 0      0      0      1     0     0    0     0         

       3 BASIC_ISO1                                0      0      0      1     0     0    0     0         

    -------------------------------------------------------------------------------------------------------

    There are 0 cells having extra buffers

    Cost (simple: 0, complex: 0)

    #################################################

     

    #####################################

    SETUP> read design TEST/test2.v

    // Command: read design TEST/test2.v

    // Parsing file TEST/test2.v ...

    // design root module is set to 'top'

    // Warning: (RTL1.2) Variable/signal is assigned by multiple non-blocking assignments (occurrence:4)

    // Warning: (RTL2.5) Undriven net is detected (occurrence:5)

    // Warning: (RTL14) Signal has input but it has no output (occurrence:2)

    // Warning: (HRC2.2) Module/entity exists in library and design (occurrence:1)

    // Warning: There are 5 undriven nets in design

    // Note: Read VERILOG design successfully

    SETUP> report isolation cell

    // Command: report isolation cell

    // No isolation cells to be reported

    SETUP> read -cpf CPF/const2.cpf

    // Command: read -cpf CPF/const2.cpf

    // Error: Unknown command read -cpf CPF/const2.cpf.

    SETUP> read cpf CPF/const2.cpf

    // Command: read cpf CPF/const2.cpf

    // Warning: [CPF-LINT-213] create_power_domain: Internally switched power domain 'PD2' needs to specified with base domain(s). (CPF/const2.cpf:7)

    // Warning: [CPF-LINT-213] create_power_domain: Internally switched power domain 'PD3' needs to specified with base domain(s). (CPF/const2.cpf:9)

    // Warning: CPF/const2.cpf:42 Cannot find library cell matching BASIC_ISOOOO

    // Error: Serious CPF quality errors found. Please fix them before commit cpf.

    //        You can do 'read cpf' on corrected CPF files at this point without having to read the design again.

    // Error: (CPF_LS4) Level shifter cells do not exist to support voltages of crossings defined by level shifter rule. (occurrence:1)

    // Error: (CPF_RET1) No valid retention cell defined in library to support retention rule. (occurrence:1)

    // Note: (CPF_RET6) Instance defined in retention rule is not valid retention object. (occurrence:4)

    SETUP> report isolation cell

    // Command: report isolation cell

    // No isolation cells to be reported

    #######################################

     
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  • NTlp
    NTlp over 12 years ago
    Yes, forsure i would ask for 12.1 but currently getting following with 9.1

    Please tell is this expected behaviour.

    ######################################

    SETUP> read design TEST/test2.v

    // Command: read design TEST/test2.v

    // Parsing file TEST/test2.v ...

    // Error: TEST/test2.v:30 Module 'BASIC_ISO' is referenced but not defined.

    SETUP> read library -liberty test2/cell1.lib -lp

    // Command: read library -liberty test2/cell1.lib -lp

    // Parsing file test2/cell1.lib ...

    Translating Liberty file "test2/cell1.lib" to CPF file "/tmp/translated_cpf_from_libs_test2_cell1.lib_29965"

    // Warning:

    Command lib2cpf timeout after 5 second idling.

    // Error: Fail to run /remote/tools/linux/cadence/CONFRML91/bin/lib2cpf

    // Note: Read Liberty library successfully

    SETUP> report isolation cell

    // Command: report isolation cell

    // Error: Design does not exist. Please read design first.

    SETUP> report library data

    // Command: report library data

    -------------------------------------------------------------------------------------------------------

      ID Name                                   Cost    Ins    Ref    TOT   DFF  DLAT   BUF  NOT BBOX  UDP

    -------------------------------------------------------------------------------------------------------

       1 AND1                                      0      0      0      1     0     0    0     0         

       2 BASIC_ISO                                 0      0      0      1     0     0    0     0         

       3 BASIC_ISO1                                0      0      0      1     0     0    0     0         

    -------------------------------------------------------------------------------------------------------

    There are 0 cells having extra buffers

    Cost (simple: 0, complex: 0)

    #################################################

     

    #####################################

    SETUP> read design TEST/test2.v

    // Command: read design TEST/test2.v

    // Parsing file TEST/test2.v ...

    // design root module is set to 'top'

    // Warning: (RTL1.2) Variable/signal is assigned by multiple non-blocking assignments (occurrence:4)

    // Warning: (RTL2.5) Undriven net is detected (occurrence:5)

    // Warning: (RTL14) Signal has input but it has no output (occurrence:2)

    // Warning: (HRC2.2) Module/entity exists in library and design (occurrence:1)

    // Warning: There are 5 undriven nets in design

    // Note: Read VERILOG design successfully

    SETUP> report isolation cell

    // Command: report isolation cell

    // No isolation cells to be reported

    SETUP> read -cpf CPF/const2.cpf

    // Command: read -cpf CPF/const2.cpf

    // Error: Unknown command read -cpf CPF/const2.cpf.

    SETUP> read cpf CPF/const2.cpf

    // Command: read cpf CPF/const2.cpf

    // Warning: [CPF-LINT-213] create_power_domain: Internally switched power domain 'PD2' needs to specified with base domain(s). (CPF/const2.cpf:7)

    // Warning: [CPF-LINT-213] create_power_domain: Internally switched power domain 'PD3' needs to specified with base domain(s). (CPF/const2.cpf:9)

    // Warning: CPF/const2.cpf:42 Cannot find library cell matching BASIC_ISOOOO

    // Error: Serious CPF quality errors found. Please fix them before commit cpf.

    //        You can do 'read cpf' on corrected CPF files at this point without having to read the design again.

    // Error: (CPF_LS4) Level shifter cells do not exist to support voltages of crossings defined by level shifter rule. (occurrence:1)

    // Error: (CPF_RET1) No valid retention cell defined in library to support retention rule. (occurrence:1)

    // Note: (CPF_RET6) Instance defined in retention rule is not valid retention object. (occurrence:4)

    SETUP> report isolation cell

    // Command: report isolation cell

    // No isolation cells to be reported

    #######################################

     
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