hdlsaveparams
Save nondefault block- and model-level HDL parameters
Syntax
Description
hdlsaveparams(
saves nondefault block- and model-level HDL parameters to a MATLAB script and specifies whether to overwrite the previously saved
parameters MATLAB script.dut
,filename
,force_overwrite
)
Examples
Display HDL-Related Nondefault Model Parameters
Open the model.
sfir_fixed
Set HDL-related model parameters for the symmetric_fir
subsystem.
hdlset_param('sfir_fixed/symmetric_fir', 'SharingFactor', 3) hdlset_param('sfir_fixed/symmetric_fir', 'InputPipeline', 5)
Display HDL-related nondefault model parameters for the symmetric_fir
subsystem.
hdlsaveparams('sfir_fixed/symmetric_fir')
%% Set Model 'sfir_fixed' HDL parameters hdlset_param('sfir_fixed', 'HDLSubsystem', 'sfir_fixed/symmetric_fir'); % Set SubSystem HDL parameters hdlset_param('sfir_fixed/symmetric_fir', 'InputPipeline', 5); hdlset_param('sfir_fixed/symmetric_fir', 'SharingFactor', 3);
The output identifies the subsystem and displays its HDL-related parameter values.
Save and Restore HDL-Related Model Parameters
This example shows how to set HDL parameters on a model and save the parameters in a MATLAB® script.
Set Model HDL Parameters
Open the sfir_fixed
model.
sfir_fixed
Verify that model parameters have default values.
hdlsaveparams('sfir_fixed/symmetric_fir')
%% Set Model 'sfir_fixed' HDL parameters hdlset_param('sfir_fixed', 'HDLSubsystem', 'sfir_fixed/symmetric_fir');
Set HDL-related model parameters for the symmetric_fir
subsystem.
hdlset_param('sfir_fixed/symmetric_fir', 'SharingFactor', 3) hdlset_param('sfir_fixed/symmetric_fir', 'InputPipeline', 5)
Save Model HDL Parameters
Verify that model parameters are set.
hdlsaveparams('sfir_fixed/symmetric_fir')
%% Set Model 'sfir_fixed' HDL parameters hdlset_param('sfir_fixed', 'HDLSubsystem', 'sfir_fixed/symmetric_fir'); % Set SubSystem HDL parameters hdlset_param('sfir_fixed/symmetric_fir', 'InputPipeline', 5); hdlset_param('sfir_fixed/symmetric_fir', 'SharingFactor', 3);
Save the model parameters to a MATLAB® script, sfir_saved_params.m
.
hdlsaveparams('sfir_fixed/symmetric_fir', 'sfir_saved_params.m')
Verify Saved Parameters
Reset HDL-related model parameters to default values.
hdlrestoreparams('sfir_fixed/symmetric_fir')
Verify that model parameters have default values.
hdlsaveparams('sfir_fixed/symmetric_fir')
%% Set Model 'sfir_fixed' HDL parameters hdlset_param('sfir_fixed', 'HDLSubsystem', 'sfir_fixed');
Restore the saved model parameters from sfir_saved_params.m
.
hdlrestoreparams('sfir_fixed/symmetric_fir', 'sfir_saved_params.m')
Verify that the saved model parameters are restored
hdlsaveparams('sfir_fixed/symmetric_fir')
%% Set Model 'sfir_fixed' HDL parameters hdlset_param('sfir_fixed', 'HDLSubsystem', 'sfir_fixed/symmetric_fir'); % Set SubSystem HDL parameters hdlset_param('sfir_fixed/symmetric_fir', 'InputPipeline', 5); hdlset_param('sfir_fixed/symmetric_fir', 'SharingFactor', 3);
Overwrite Previously Saved HDL Parameters File
This example shows how to set HDL parameters on a model, save the parameters in a MATLAB® script, and then overwrite the saved parameters.
Set Model HDL Parameters
Open the sfir_fixed
model.
sfir_fixed
Verify that model parameters have default values.
hdlsaveparams('sfir_fixed/symmetric_fir')
%% Set Model 'sfir_fixed' HDL parameters hdlset_param('sfir_fixed', 'HDLSubsystem', 'sfir_fixed/symmetric_fir');
Set HDL-related model parameters for the symmetric_fir
subsystem.
hdlset_param('sfir_fixed/symmetric_fir', 'SharingFactor', 3) hdlset_param('sfir_fixed/symmetric_fir', 'InputPipeline', 5)
Save Model HDL Parameters
Verify that model parameters are set.
hdlsaveparams('sfir_fixed/symmetric_fir')
%% Set Model 'sfir_fixed' HDL parameters hdlset_param('sfir_fixed', 'HDLSubsystem', 'sfir_fixed/symmetric_fir'); % Set SubSystem HDL parameters hdlset_param('sfir_fixed/symmetric_fir', 'InputPipeline', 5); hdlset_param('sfir_fixed/symmetric_fir', 'SharingFactor', 3);
Save the model parameters to a MATLAB® script, sfir_saved_params.m
.
hdlsaveparams('sfir_fixed/symmetric_fir', 'sfir_saved_params.m')
Verify Saved Parameters
Reset HDL-related model parameters to default values.
hdlrestoreparams('sfir_fixed/symmetric_fir')
Verify that model parameters have default values.
hdlsaveparams('sfir_fixed/symmetric_fir')
%% Set Model 'sfir_fixed' HDL parameters hdlset_param('sfir_fixed', 'HDLSubsystem', 'sfir_fixed');
Restore the saved model parameters from sfir_saved_params.m
.
hdlrestoreparams('sfir_fixed/symmetric_fir', 'sfir_saved_params.m')
Verify that the saved model parameters are restored
hdlsaveparams('sfir_fixed/symmetric_fir')
%% Set Model 'sfir_fixed' HDL parameters hdlset_param('sfir_fixed', 'HDLSubsystem', 'sfir_fixed/symmetric_fir'); % Set SubSystem HDL parameters hdlset_param('sfir_fixed/symmetric_fir', 'InputPipeline', 5); hdlset_param('sfir_fixed/symmetric_fir', 'SharingFactor', 3);
Modify Saved HDL Parameters
Modify HDL-related model parameters set for the symmetric_fir
subsystem.
hdlset_param('sfir_fixed/symmetric_fir', 'SharingFactor', 4) hdlset_param('sfir_fixed/symmetric_fir', 'OutputPipeline', 2) hdlset_param('sfir_fixed', 'ShareAdders', 'on')
Overwrite Saved Parameters File
Set the force_overwrite
flag to true
to overwrite the parameters file sfir_saved_parameters.m
with the new parameters. If you do not specify this flag, HDL Coder™ generates an error and doesn't overwrite the parameter values. When you run hdlsaveparams
with the parameter set to true
, HDL Coder™ generates a warning that it overwrites the file.
hdlsaveparams('sfir_fixed/symmetric_fir', 'sfir_saved_params.m','true')
Warning: HDL parameters file 'sfir_saved_params.m' already exists. By overwriting it now, you will lose any parameter settings made earlier.
Verify Resaved Parameters
Reset HDL-related model parameters to default values.
hdlrestoreparams('sfir_fixed/symmetric_fir')
Verify that model parameters have default values.
hdlsaveparams('sfir_fixed/symmetric_fir')
%% Set Model 'sfir_fixed' HDL parameters hdlset_param('sfir_fixed', 'HDLSubsystem', 'sfir_fixed');
Restore the saved model parameters from sfir_saved_params.m
.
hdlrestoreparams('sfir_fixed/symmetric_fir', 'sfir_saved_params.m')
Verify that the saved model parameters are restored
hdlsaveparams('sfir_fixed/symmetric_fir')
%% Set Model 'sfir_fixed' HDL parameters hdlset_param('sfir_fixed', 'HDLSubsystem', 'sfir_fixed/symmetric_fir'); hdlset_param('sfir_fixed', 'ShareAdders', 'on'); % Set SubSystem HDL parameters hdlset_param('sfir_fixed/symmetric_fir', 'InputPipeline', 5); hdlset_param('sfir_fixed/symmetric_fir', 'OutputPipeline', 2); hdlset_param('sfir_fixed/symmetric_fir', 'SharingFactor', 4);
Save and Access Non-Default HDL Parameters in a Structure Array
This example shows how to save non-default HDL model and block parameters in a structure array and access individual parameters.
Open the model
sfir_single
sim('sfir_single')
Save HDL Model and Block parameters
hparams = hdlsaveparams('sfir_single/symmetric_fir');
%% Set Model 'sfir_single' HDL parameters fpconfig = hdlcoder.createFloatingPointTargetConfig('NATIVEFLOATINGPOINT' ... , 'MantissaMultiplyStrategy', 'FullMultiplier' ... ); hdlset_param('sfir_single', 'FloatingPointTargetConfiguration', fpconfig); hdlset_param('sfir_single', 'HDLSubsystem', 'sfir_single/symmetric_fir'); hdlset_param('sfir_single', 'UseFloatingPoint', 'on'); % Set SubSystem HDL parameters hdlset_param('sfir_single/symmetric_fir', 'InputPipeline', 1); hdlset_param('sfir_single/symmetric_fir', 'OutputPipeline', 1);
View and Access Block Parameters
hparams
hparams = 1x5 struct array with fields: object parameter value
To see specific non-default parameters saved in the structure, you can access individual elements of the structure.
hparams(2)
ans = struct with fields: object: 'sfir_single' parameter: 'HDLSubsystem' value: 'sfir_single/symmetric_fir'
To view the parameters and values specified for the model, in the MATLAB™ Workspace, double-click the hparams
variable. You see the fields of the structure array and the corresponding values in the MATLAB Editor.
Input Arguments
dut
— DUT subsystem name
character vector
DUT subsystem name, specified as a character vector, with full hierarchical path.
Example: 'modelname/subsysTarget'
Example: 'modelname/subsysA/subsysB/subsysTarget'
filename
— Name of file
character vector
Name of file to which you are saving model parameters, specified as a character vector.
Example: '
mymodel_saved_params.m'
force_overwrite
— Overwrite parameters file
boolean
Specify whether to overwrite the previously saved parameters file as a boolean.
Example: '
true'
Output Arguments
varname
— Name of variable containing saved parameters
struct
Specify the name of the variable that contains the saved model parameters. The variable are saved as a structure array.
Example: '
hparams'
Version History
Introduced in R2012b
See Also
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