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set_pin_constant

Set pin to a constant value
Usage:
set_pin_constant($pin, $value, @options);
$pin: Input pin name. It can be a bus.
$value: Decimal value that the pin should be set
@options:
    -help: Print this information
    -both: Set the pin to the constant value on both Implementation and Reference. Enabled by default.
    -imp:  Set the pin to the constant only on Implementation
    -ref:  Set the pin to the constant only on Reference
Examples:
\#1. Set test scan test pin to low
set_top('DESING_TOP');
set_pin_constant('PIN_SCAN_TEST', 0);
set_ignore_output('PIN_SCAN_SO*');
fix_design();
#2. Set one bus port to all ones on Implementation
set_top('DESING_TOP');
set_pin_constant('PIN_CONTROL[3:0]', 15, '-imp');
fix_design();