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how can I use a signal defined in one Architecture to another Architecture



 
 
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  #1  
Old July 9th 03, 06:51 PM
Muhammad Khan
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Default how can I use a signal defined in one Architecture to another Architecture

Hello everybody,

I want to use the signal defined in one architecture in VHDL to
another architecture. I have two architecture in the same .vhd file
and I am using Component mapping. I required the result of calculation
of a signal to be used in second architecture. Can any one tell how to
defined signal so that it is globally visible to other architectures.

Regards

Khan
  #2  
Old July 9th 03, 09:30 PM
Mario Trams
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Default

Muhammad Khan wrote:

I want to use the signal defined in one architecture in VHDL to
another architecture. I have two architecture in the same .vhd file
and I am using Component mapping. I required the result of calculation
of a signal to be used in second architecture. Can any one tell how to
defined signal so that it is globally visible to other architectures.


Hello Muhammad,

this is a common question.

The clean way for handling this is to feed the signal through
the port maps.

Regards,
Mario

--
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Digital Force / Mario Trams

Chemnitz University of Technology
http://www.tu-chemnitz.de/~mtr
Dept. of Computer Science Tel.: (+49) 371 531 1660
Chair of Computer Architecture Fax.: (+49) 371 531 1818
----------------------------------------------------------------------
  #3  
Old July 9th 03, 11:20 PM
Jon
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Hi Khan,
If you declare a signal in a package and you include the package
then the signal can be globally used by all architectures that
reference that package. This is for simulation only and will not
work for synthesis.

Jon


(Muhammad Khan) wrote in message . com...
Hello everybody,

I want to use the signal defined in one architecture in VHDL to
another architecture. I have two architecture in the same .vhd file
and I am using Component mapping. I required the result of calculation
of a signal to be used in second architecture. Can any one tell how to
defined signal so that it is globally visible to other architectures.

Regards

Khan

  #4  
Old July 10th 03, 05:11 AM
Ken McElvain
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Default



Jon wrote:

Hi Khan,
If you declare a signal in a package and you include the package
then the signal can be globally used by all architectures that
reference that package. This is for simulation only and will not
work for synthesis.



This will work for synthesis in Synplify Pro 7.3.



Jon


(Muhammad Khan) wrote in message . com...

Hello everybody,

I want to use the signal defined in one architecture in VHDL to
another architecture. I have two architecture in the same .vhd file
and I am using Component mapping. I required the result of calculation
of a signal to be used in second architecture. Can any one tell how to
defined signal so that it is globally visible to other architectures.

Regards

Khan


 




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