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How to delete input/output pins in Matlab Scripting

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Mon, 03/11/2024
5:36am
noguchi.wataru0...
#1
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#1
How to delete input/output pins in Matlab Scripting

Hello ,

In Matlab Scripting, is there a way to delete input/output pins?

It seems possible to add pins by add_pin, but is it also possible to reduce the number of pins in components such as Adders that were initially determined?

Thank you.

Mon, 03/11/2024
6:38pm
DSPC_Gary
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Hi Noguchi-san,

Try the readd_module() function.

Think of readd_module as "re-add module()" or "replace module()".

>> help readd_module
--- help for awe_module/readd_module ---

  SYS=readd_module(SYS, HNAME, OLDNAME, NEWNAME, ARGS)
  Updates a module by recreating it using different sets of instantiation
  arguments.  Arguments:
     SYS - @awe_subsystem object.
     HNAME - hierarchical name of the subsystem containing the module.
             To change a module in the top-level system, set HNAME=''.
     OLDNAME - existing name of the module.
     NEWNAME - new name for the module.
     ARGS - cell array of input arguments.  These are passed to the module
            instantiation function following NEWNAME.
 
  The function updates the module and all connections and returns the
  modified system SYS.  The function also returns the new module NEWMOD.

>> 

For example, start with a layout that has a single adder with 2 input pins.  Suppose this is Pins-2.awd.

GSYS = load_awd('Pins-2.awd');

GSYS.SYS = readd_module(GSYS.SYS, '', 'Add1', 'Add1a', { 6 1});

save_awd('Pins-6.awd', GSYS);

The Adder Add1 has been renamed to Add1a.  It is also possible to specify the same name in both locations so it does not get renamed.  The additional new Arguments sent to the Adder are { 6 1 }.  So now it has 6 pins and the "oneChannelOutput" Argument is set to 1.

 

Thanks,

DSPC_Gary

Tue, 03/12/2024
2:14am
noguchi.wataru0...
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(Reply to #2)

 

Hi , Gary

Thank you for the prompt response.

I'm glad to know that readd_module() can be used to modify the number of input and output of Adder and other modules.

Also, is there a way to change the number of input and output of a original made Subsystem that has been previously saved in .awd?

I feel that it is not working for the original subsystems named 'testSubsystem' with 3 inputs: testIn1, testIn2, testIn3, and 2 outputs: TestOut1, testOut2.

GSYS = load_awd('including_originalSubsytem.awd');

GSYS.SYS = readd_module(GSYS.SYS, '', 'originalSubsystem', 'new_OriginalSubsystem', { 2 1});

save_awd('including_new_originalSubsytem.awd', GSYS);

If I want to make new Subsytem with 2 inputs: testIn1, testIn2, and 1 outputs: TestOut1, is there a way?

Thank you.

Tue, 03/12/2024
10:45am
DSPC_Gary
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(Reply to #3)

Hi Noguchi-san,  

Please try delete_pin() for subsystems.

>> help delete_pin
--- help for awe_module/delete_pin ---

  SYS=delete_pin(SYS, IO, PINNAME)
  Deletes a pin from a system.  It removes the pin and also any
  connections that are attached to the pin.  Arguments:
     SYS - @awe_subsystem object.
     IO - string of either 'input' or 'output' which specifies whether
         the input or output pins should be searched.
    PINNAME - name of the pin.
 
  PINNAME can be of the form 'in1' or '.in1'.  The function also supports
  deleting pins within an internal subsystem.  Then PINNAME specifies
  the overall hierarchical name as in 'subsys1.subsys2.in1'.
 
  If pin does not exist in the system, then an error occurs.

>> 

Thanks,

DSPC_Gary

 

Wed, 03/13/2024
3:55am
noguchi.wataru0...
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(Reply to #4)

Hi Gary, Thank you so much for your quick answer.

I didn't know delete_pin, and it works as I expected.

Thank you.