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How to use AlgorithmDesigner of SigmaStudioPlus to create a customized module of ADSP-21569?

Category: Software
Product Number: EV-21569-SOM REV B
Software Version: SigmaStudio Plus V2.0

When using SS+ V2.0 to define customized module with AlgorithmDesigner, it says that only ADSP-SC5xx could be selected as the processor. But my target processor is ADSP-2156x. Could you tell me how to do it in SS+?