Hi All,
I am quite new the NFC so forgive me if I may miss some details or lack the understanding about some of the standards.
Regardless, what I need to do is emulate a tag that is readable with an iPhone using NDEF for one way communication. The payloads need to be ~1KB though I may be able to get away with 512B as a last resort. The only issue I have is it must be held is ram, not eeprom as I will be writing to the tag, on average, every 5s.
The alternative to this is to use a transceiver or similar that instead of holding the data, simply requires a "pass through".
I looked into quite a few series of ICs that NXP has to offer and came up with the following notes:
Hi @ryan4volts ,
For using NFC reader ICs such as PN5180, PN7150, the tag content is stored in the host controller , or play with NTAG 5 boost in passhtrough mode as you mentioned, please refer to https://www.nxp.com.cn/docs/en/application-note/AN12364.pdf for details. but whatever you choose, the tag content is directly stored in the host controller, either reader ICs or tag ICs just act as a bridge, so just make sure there are enough SRAM resource on the host controller for your application. how about i.MX RT or LPC ? Please refer to the following for details.
Hope that helps,
Have a great day,
Kan
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