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Allocation Priority can be set in Designer. This affects when memory for the module is allocated. Module's with higher values of allocation priority values are allocated first. This allows you to allocate modules early which are highly dependent upon running in internal memory. You can also set negative numbers for higher priorities. to shift a module from higher priority to lower during memory allocation.
Allocation priority is only about memory allocation and does not affect the order of processing. !
For setting or changing priority right click on the module → go to properties → go to the ‘Build’ tab and ‘allocationPriority' options shown in figure below.
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