Hello,
Thank you for using our NXP products we really appreciate the preference,
Can you please tell me what version of NFC Cockpit are you using?
Have you checked the NXP NFC Cockpit User Manual available when you download the .zip file and decompress it? In the following route, you will find a User Manual file called: DN_NNC_Main.pdf
…\NFCCockpit_V05.09.00.zip\NFCCockpit\Docs\NfcCockpit
In chapter 6, section 6.2 there are a series of examples that shows how the .nncscript files are built and how to load them into NFC Cockpit.
As you are able to check on the Manual, NFC Cockpit main commands are, Read and Write Registers. By using these commands as shown in the examples you will be able to read the Register where the CLEV stores the UID value.
Example rc663_sample_1.nncscript will show you how to Turn on the field and Read a Register.
Best Regards,
Fabian