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anonimcs's avatar
anonimcs
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2 years ago
Solved

Change VHDL generic via command line for synthesis

Hello everyone, I have a project which consists of multiple IPs. I have a qsys file for each configuration of the IPs and I also have a top-level generic that allows me to not have a duplicate of VH...
Configuration
  • ShengN_altera's avatar
    ShengN_altera
    2 years ago

    Hi,


    then how should I make the pin assignments for the pins not used when generic = 0 (they're only used when generic = 1). Is there a way to set them 'conditionally' in the qsf file ?

    For above mentioned can't be achieved in .qsf, you may need to use .tcl script if/then/else already as mentioned. For example like below in .tcl:

    set a [get_parameter -name C3_CNT]


    if {$a == 1} {

    set disable 0

    set enable 1

    } else {

    set enable 0

    set disable 1

    }

    if {$enable} {

    set_location_assignment PIN_W28 -to outclk6 -disable -comment IOBANK_3C -remove

    set_location_assignment PIN_W28 -to outclk6 -comment IOBANK_3C

    export_assignments

    }

    if {$disable} {

    set_location_assignment PIN_W28 -to outclk6 -disable -comment IOBANK_3C

    export_assignments

    }


    Remember that if want to enable, make sure source the .tcl twice in order to remove the previous -disable assignment.


    [Take Note This]: Critical Warning(19941): QSF command 'set_parameter' can only apply to the top-level design and cannot include '-to' or '-entity' arguments.

    If you notice that 'set_parameter' doesn't take effect, remove the '-to' or '-entity' arguments because it can only apply to top-level design.


    Thanks,

    Best Regards,

    Sheng