Error message for unmatched Fmmu

In some device description file, Fmmu and Sm are not matched.
And an error is reported for this case:

At least one SyncManager has no matched Fmmu, more Fmmu should be defined!

This may not be an error.

Hi Sven,

As far as I understand, the following should be made:

1. Do not show any error message for this case in slave DTM.
2. Generate FPRD/FPWR commands for such Sm in Master DTM.

Thank you!

br,
Jing

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Von: SBormann@hilscher.com
Gesendet: Donnerstag, 12. November 2009 13:47
An: JLi@hilscher.com; AJacob@hilscher.com
Cc: DTsaava@hilscher.com
Betreff: AW: Problems with EtherCat devices

Hallo Andreas,

@Jing: This is not required it is allowed to have Fmmus only for a part of the given Sync Managers.

In fact, the master should fall back to use FPRD/FPWR commands in the case that a Sync Manager does not have a FMMU associated with it in the DDF.