LPC8N04 NFC read-after-write

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LPC8N04 NFC read-after-write

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Contributor III

Is it possible to do a read-after-write with the LFC8N04?

When a user NFC taps the LPC8N04 device a security code is sent which we want to use to customise the return records. We have limited control over the reader device.

We achieve this on other manufacturers silicon (Nordic) by disabling then re-enabling the NFC sub-system which forces the reader to do a re-read, is this possible with the LPC8N04? Or can it be achieved a different way?

Thanks.

Ken...

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Contributor III

Thanks Ivan

What you are saying then is the LPC8N04's NFC interface cannot be disabled.

Ken...

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NXP TechSupport
NXP TechSupport

Hello,

The LPC8N04's NFC interface is basically a passive device, the implementation is rather on the reader's side, how it handles the communication with the LPC8N04 which basically is compliant to ISO 14443 type A. 

BR,

Ivan.

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