| Line 16... |
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<h1><a name="socgen_project"></a><font size="+3">SOCGEN Project</font></h1>
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<h1><a name="socgen_project"></a><font size="+3">SOCGEN Project</font></h1>
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<h2><br>
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<h2><br>
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</h2>
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</h2>
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The mission of the SOCGEN project is to provide a blueprint showing
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The mission of the SOCGEN project is to provide a blueprint showing
|
digital designers how to create a System_on_chip (SOC) by
|
digital designers how to create a System_on_chip (SOC) by
|
assembling components created by a variety of sources. It will
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assembling components from a variety of sources. It will
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show how to create a component that can be reused and provides a
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show how to create a component that can be reused and provides a
|
free opensourced tool set that can be used to assemble and verify
|
free opensourced tool set that can be used to assemble and verify
|
a design. It employs modern design for reuse techniques to reduce the
|
a design. It employs modern design for reuse techniques to reduce the
|
waste and inefficiencies that is inherent in handcrafting a design<br>
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waste and inefficiencies that is inherent in handcrafting a design. <br>
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<br>
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<br>
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<br>
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<br>
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<br>
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<br>
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<br>
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<br>
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<br>
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<br>
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<br>
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<br>
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<h2><a name="manifesto"></a><font size="+2">Principles for Reusable
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<h2><a name="manifesto"></a><font size="+2">Principles for Creating
|
design</font><br>
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Reusable Design</font>s<br>
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</h2>
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</h2>
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<p><br>
|
<p><br>
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</p>
|
</p>
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<br>
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<br>
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<h2><font size="+1">Plan ahead<br>
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<h2><font size="+1">Plan ahead<br>
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size="+1">Do not keep duplicate copies of a file in the database</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></h2>
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size="+1">Do not keep duplicate copies of a file in the database</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></h2>
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Doing so makes it difficult to ensure that bug fixes and enhancements
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Doing so makes it difficult to ensure that bug fixes and enhancements
|
created by one user can be made available to all users. Every file
|
created by one user can be made available to all users. Every file
|
should have one and only one location in the database<br>
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should have one and only one location in the database<br>
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<br>
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<br>
|
|
<br>
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<h2><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font
|
<h2><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font
|
size="+1">Do not build the design inside of an RCS database.</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></h2>
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size="+1">Do not build the design inside of an RCS database.</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></h2>
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It is really hard to keep track of all the new files that you have
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It is really hard to keep track of all the new files that you have
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added that you need to check into the Revision Control System if
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added that you need to check into the Revision Control System if
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they are buried by
|
they are buried by
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| Line 113... |
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only
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only
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contain the minimal seed data needed to rebuild the entire design. It
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contain the minimal seed data needed to rebuild the entire design. It
|
should never contain any files that were generated by the build
|
should never contain any files that were generated by the build
|
process. <br>
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process. <br>
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<br>
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<br>
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|
<br>
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<p>
|
<p>
|
</p>
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</p>
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<p></p>
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<p></p>
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<h2><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font
|
<h2><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font
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size="+1">Store files based on their source and not their use.</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></h2>
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size="+1">Store files based on their source and not their use.</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></h2>
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| Line 124... |
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a spot inside your chip database for Joes files? Because that is not
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a spot inside your chip database for Joes files? Because that is not
|
planning ahead. Later if your lab starts another chip that also uses
|
planning ahead. Later if your lab starts another chip that also uses
|
Joes IP then they will also need access to those files. Create a spot
|
Joes IP then they will also need access to those files. Create a spot
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for files where everybody can simply access them by linking the desired
|
for files where everybody can simply access them by linking the desired
|
files into there database<font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font
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files into there database<font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font
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size="+1">.</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font>
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size="+1">.<br>
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<br>
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<br>
|
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</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font>
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<p></p>
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<p></p>
|
<h2><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font
|
<h2><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font
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size="+1">Do not mix unlike objects in the same container.</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></h2>
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size="+1">Do not mix unlike objects in the same file.</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></h2>
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"Unlike" is a deliberately nebulous term. It can mean anything and
|
"Unlike" is a deliberately nebulous term. It can mean anything and
|
everything. If you have a instance of a hard macro that is
|
everything. If you have a instance of a hard macro that is
|
unsynthesizable then do not put it in a file along with synthesisable
|
unsynthesizable then do not put it in a file along with synthesisable
|
rtl code. If you have code belonging to one designer then do not mix it
|
rtl code. If you have code belonging to one designer then do not mix it
|
with code belonging to another. If you do then you have to worry about
|
with code belonging to another. If you do then you have to worry about
|
file locking. Fragment the design so that each object is in it's own
|
file locking. Fragment the design so that each object is in it's own
|
container and then use a tool to put them back together.<br>
|
file and then use a tool to put them back together.<br>
|
<br>
|
<br>
|
<br>
|
<br>
|
<h2></h2>
|
<h2></h2>
|
<h2><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font
|
<h2><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font><font
|
size="+1">Layer the design.</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></h2>
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size="+1">Layer the design.</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></font></h2>
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| Line 155... |
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<br>
|
<br>
|
</p>
|
</p>
|
<br>
|
<br>
|
<br>
|
<br>
|
<br>
|
<br>
|
|
<br>
|
|
<br>
|
<h2><a name="manifesto"></a>Database Guidelines</h2>
|
<h2><a name="manifesto"></a>Database Guidelines</h2>
|
<p></p>
|
<p></p>
|
<p></p>
|
<p></p>
|
<br>
|
<br>
|
<p><img style="width: 800px; height: 600px;" alt=""
|
<p><img style="width: 800px; height: 600px;" alt=""
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| Line 176... |
Line 183... |
<h2>DOC<br>
|
<h2>DOC<br>
|
</h2>
|
</h2>
|
The documentation directory.
|
The documentation directory.
|
<br>
|
<br>
|
<br>
|
<br>
|
<br>
|
|
<h2>LIB</h2>
|
|
<p>A library is a collection of building blocks that may not be
|
|
synthesizable in
|
|
all target technologies and may require customizations. The use of lib
|
|
parts in the rtl code will
|
|
facilitate porting a component into different technologies.</p>
|
|
<p><br>
|
<p><br>
|
</p>
|
</p>
|
<h2>TOOLS<br>
|
<h2>TOOLS<br>
|
</h2>
|
</h2>
|
<p>The tools directory contains all of the socgen tools needed to build
|
<p>The tools directory contains all of the socgen tools needed to build
|
, simulate and synthesize all of the systems and components in the
|
, simulate and synthesize all of the systems and components in the
|
database. Scripts and installation instructions are provided for any
|
database. Scripts and installation instructions are provided for any
|
other opensource tools that may be required. There are also
|
other opensource tools that may be required. There are also
|
instructions for any proprietary tools that are used.<br>
|
instructions for any proprietary tools that are used.<br>
|
</p>
|
</p>
|
<p><br>
|
|
<br>
|
<br>
|
</p>
|
<br>
|
|
<h2>LIB</h2>
|
|
<p>A library is a collection of building blocks that may not be
|
|
synthesizable in
|
|
all target technologies and may require customizations. The use of lib
|
|
parts in the rtl code will
|
|
facilitate porting a component into different technologies.</p>
|
|
<br>
|
<h2>BENCH<br>
|
<h2>BENCH<br>
|
</h2>
|
</h2>
|
<p>A testbench is used for all simulations and test suites. Any system
|
<p>A testbench is used for all simulations and test suites. Any system
|
or component may be simulated. Components can only do generic rtl sims
|
or component may be simulated. Components can only do generic rtl sims
|
while systems may do either generic rtl ,specific rtl or gate sims.
|
while systems may do either generic rtl ,specific rtl or gate sims.
|
Generic rtl models are included in the socgen library, specific ones
|
Generic rtl models are included in the socgen library, specific ones
|
must be obtained from the IC vendor.<br>
|
must be obtained from the IC vendor.<br>
|
</p>
|
</p>
|
<p><br>
|
<p><br>
|
</p>
|
</p>
|
<p><br>
|
<br>
|
|
<h2>TARGETS</h2>
|
|
<p>A target is a specific physical design that can implement a
|
|
component. Targets can be asic or fpga and include a Printed circuit
|
|
board(PCB) that may include other electronic components. The goal for
|
|
all components is to assign them to at least one target and prove that
|
|
the work in silicon<br>
|
|
</p>
|
|
<p>
|
</p>
|
</p>
|
<p><br>
|
<p><br>
|
</p>
|
</p>
|
<h2>PROJECT</h2>
|
<h2>PROJECTS</h2>
|
<p>A project is a collection of components. A database must define at
|
<p>A project is a collection of components. A database must define at
|
least one project to create an area where components may be stored.
|
least one project to create an area where components may be stored.
|
Other projects may be created as needed to group similar components
|
Other projects may be created as needed to group similar components
|
together and reducing clutter. If any component in a project uses a
|
together and reducing clutter. <br>
|
component from a child project then that child project must also be
|
|
included in the parent project.</p>
|
|
<p><br>
|
|
<br>
|
|
</p>
|
</p>
|
<p><br>
|
<p><br>
|
<br>
|
<br>
|
</p>
|
</p>
|
<h2>COMPONENT</h2>
|
<p><br>
|
<p>A component is a basic building block that may be used to make
|
<img style="width: 800px; height: 600px;" alt=""
|
other components.</p>
|
src="../png/data_fig2.png"><br>
|
<br>
|
|
<p>
|
|
</p>
|
</p>
|
|
<p></p>
|
<br>
|
<br>
|
<h2>TARGET</h2>
|
|
<p>A target is a specific physical design that can implement a
|
|
component. Targets can be asic or fpga and include a Printed circuit
|
|
board(PCB) that may include other electronic components. The goal for
|
|
all components is to assign them to at least one target and prove that
|
|
the work in silicon<br>
|
|
</p>
|
|
<br>
|
<br>
|
<p><br>
|
<p><br>
|
<br>
|
<br>
|
</p>
|
</p>
|
<p><br>
|
<p><br>
|
<br>
|
<br>
|
</p>
|
</p>
|
|
<h2>WORK<br>
|
|
</h2>
|
|
<p>The work directory is a composite image of the projects directory
|
|
plus any additional links needed for simulation and synthesis. All
|
|
design processes are run in this directory and it contains all the
|
|
generated files that are produced.<br>
|
|
</p>
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<p><br>
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</p>
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<p><br>
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<p><br>
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<br>
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<br>
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</p>
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</p>
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<p><br>
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<p><br>
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<br>
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<br>
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