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What's the difference between subapp and compsite fb? [message #1840399]

Wed, 14 April 2021 12:41

joy woo

Messages: 198
Registered: May 2019

Senior Member

from the export cpp, i see no difference

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Re: What's the difference between subapp and compsite fb? [message #1840401 is a reply to message #1840399]

Wed, 14 April 2021 12:54

Alois Zoitl

Messages: 1619
Registered: January 2014

Senior Member

Suapps do not need to be exported to C++. We should forbid it.

Subapps are flattend during deployment.

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Re: What's the difference between subapp and compsite fb? [message #1840440 is a reply to message #1840401]

Thu, 15 April 2021 09:27

joy woo

Messages: 198
Registered: May 2019

Senior Member

there is not document of subapps how to use, and i saw there are a lot of changes in subapp in 4diac ide 1.14, but still i haven't seen the monitor/watching funcationality.
and what's the meaning of flattend ?

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Re: What's the difference between subapp and compsite fb? [message #1840448 is a reply to message #1840440]

Thu, 15 April 2021 14:37

Alois Zoitl

Messages: 1619
Registered: January 2014

Senior Member

Subapps are in there current form similar since 1.9.0. We have to flavors:
- untyped: that are directly in the application (with 1.14.0 also inside typed subapps)
- typed subapps: similar to CFBs, but they will be flattened during deployment

the main difference of subapps compared to CFBs is that the content of subapps is deployed individually. This is what I meant with flattened. They are not deployed as one component but the individual members are deployed. Furthermore according to IEC 61499 it is allowed to map subapp content to different devices. However this is currently not yet supported in 4diac IDE.

The internals of subapps should be monitorable. The interfaces are currently not.

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