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Hello,

In the frame of OSRA-NET we are using ASN.1 and ACN in order to define our types. For the moment we want to send a SEQUENCE of 100 elements of 8bit unsigned intergers:

DataView.asn:

UnsignedInteger8Bits ::= INTEGER (0 .. 255)
ArrayType ::= SEQUENCE ( SIZE (100) )  OF UnsignedInteger8Bits

DataView.acn:

UnsignedInteger8Bits [encoding pos-int, size 8, align-to-next byte]
ArrayType [size 100, align-to-next byte]

But the size obtained in the DataView.aadl file is 800bytes:

DATA ArrayType
PROPERTIES
    -- name of the ASN.1 source file:
    Source_Text => ("/home/assert/workspace/AfdxOverSpw/TASTE_Toolchain/tool-tests/producer_consumer_rasta/v2.0/DataView.asn");
    TASTE::EncodingDefinitionFile => classifier(DataView::ACN_DataView);
    TASTE::Ada_Package_Name => "TASTE_Dataview";
    Deployment::ASN1_Module_Name => "TASTE-Dataview";
    Source_Language => ASN1;
    -- Size of a buffer to cover all forms of message representation:
    -- Real message size is 800; suggested aligned message buffer is...
    Source_Data_Size => 800 Bytes;
    -- name of the corresponding data type in the source file:
    Type_Source_Name => "ArrayType";
    -- what kind of type is this?
    TASTE::ASN1_Basic_Type =>aSEQUENCEOF;
END ArrayType;

So, we can see that our driver receives a message 8 times greater than expected and sends it though the bus.

Regards