Hello Duncan,
According to my understanding you are tyring to implement TLC file for a Simulink block that performs a safety and then generate code that creates a copy of the parent’s internal state (DWork) and applies a bitwise complement to it.
To access the parent atomic subsystem’s Dwork in a TLC file, for a Simulink block that performs a safety check by accessing its parent atomic subsystem’s DWork vector, you can use TLC function “LibParentsBlock”.
%assign parent = LibParentBlock(block)
“LibBlockDWorkName”, “LibBlockDWorkDataTypeName”, and “LibBlockDWorkWidth”, these functions can be used to extract details about each Dwork element.
%assign numDWorks = LibBlockDWorkCount(parent)
%foreach i = 0:numDWorks-1
%assign dworkName = LibBlockDWorkName(parent, i)
%assign dworkType = LibBlockDWorkDataTypeName(parent, i)
%assign dworkWidth = LibBlockDWorkWidth(parent, i)
%end
To get the C struct typedef name and instance used in generated code, use “LibGetRecordIdentifier("DWork", sysIdx)” and “LibGetRecordIdentifier("DWorkInstance", sysIdx)”, where sysIdx is obtained from “LibParentSystemIdx(parent)”. This allows to reference the parent’s DWork vector in generated C code, apply the bitwise complement, and integrate it into safety check logic. Keeping in mind that the parent subsystem is atomic and has explicitly defined DWork.
%assign dworkStructType = LibGetRecordIdentifier("DWork", sysIdx)
%assign dworkInstance = LibGetRecordIdentifier("DWorkInstance", sysIdx)
Here is the documentation links for the above used functions:
