Preserve design delays

This parameter resides in the HDL Code Generation > Optimization > Pipelining tab of the Configuration Parameters dialog box. Enable this parameter to prevent distributed pipelining from moving design delays.

Settings

Default: Off

On: Prevent distributed pipelining from moving design delays.
Off: Do not prevent distributed pipelining from moving design delays.

Command-Line Information

Property: PreserveDesignDelays

Type: character vector

Value: 'on' | 'off'

Default: 'off'

To set this property, use hdlset_param or makehdl. To view the property value, use hdlget_param.

For example, you can use the PreserveDesignDelays setting when you generate HDL code for the symmetric_fir subsystem inside the sfir_fixed model using either of these methods.

Pass the property as an argument to the makehdl function.

makehdl('sfir_fixed/symmetric_fir', ... 
        'PreserveDesignDelays','on')

When you use hdlset_param, you can set the parameter on the model and then generate HDL code using makehdl.
```
hdlset_param('sfir_fixed','PreserveDesignDelays','on')
makehdl('sfir_fixed/symmetric_fir')
```

Documentation