The most likely reason of such behavior is an incorrectly passed address of the unencoded PDU. An extra level of referencing is needed (missing &) by passing the address instead of the value of the PDU.
The same is true if there are incorrectly initialized components of the enclosing PDU missing an extra level of referencing. For example, an initialized decoded field of an instance of OpenType is incorrectly accessed as:
... OpenType a; a->decoded = _v1;
instead of (correctly) accessed as:
a->decoded = &_v1;
The samples included with some of the Knowledge Center answers are meant for your general understanding of the OSS products. Different versions of the products might produce slightly different outputs. Consult the products documentation and samples for the most up-to-date products information and code examples.
Test drive the OSS Nokalva ASN.1, LTE, and XML Tools now! Your trial includes complete software, documentation, sample programs, free 24x7 technical support and more.
Our expert personnel can help you learn ASN.1!
We offer 4-day ASN.1 courses at our headquarters or your premises.