topic NTAG 424 DNA StaticFileData at SDM in NFC

NTAG 424 DNA StaticFileData at SDM

nxplover — Tue, 18 Apr 2023 11:26:52 GMT

Hello Community members,

I would like to inquire about "SDMENCFileData" in the SDM part of NTAG 424 DNA.

According to the NTAG 424 DNA datasheet, it states that SDMENCFileData refers to StaticFileData, but I am having trouble understanding what it means.
Would you be able to help me understand?

If it refers to the memory values inside the file, does the offset for this correspond to SDMENCOffset and SDMENCLength?
From my understanding, it represents the position within the NDEF SDM message.

Thanks for your help

Re: NTAG 424 DNA StaticFileData at SDM

nxplover — Tue, 18 Apr 2023 11:39:27 GMT

Additionally, regarding the phrase "within the file," does it refer to the values inside the file memory?

Re: NTAG 424 DNA StaticFileData at SDM

KaiLi — Thu, 20 Apr 2023 07:19:29 GMT

Hello @nxplover

Thanks for contacting us and interested in the NXP products.

For your question, it's recommended that you study AN12196 and your answer should be here.

Please check the attached document.

Best Regards,

kelly