unable to read NDEF information in STSW-ST25001 APP

[Schuyler]

Why am I unable to read NDEF information in the STSW-ST25001 APP using the following code, with no messages being displayed?

[Brian TIDAL]

Hi,

what is the content of the tag memory? Would you please provide a dump of the tag memory?

Rgds

BT

[Schuyler]

Hello，Mr.TIDAL

.I'm using NUCLEO-L476RG and X-NUCLEO-NFC07A1, Write text information into NDEF

[Brian TIDAL]

Hi,

would you please dump the content of the tag memory using the ST25 NFC tap app?

Rgs

BT

[Schuyler]

yes, I used app named STSW-ST25001,Here are the links：STSW-ST25001 - Application executable of the "NFC Tap" Android app for ST25 product family - STMicroelectronics. But I did not implement the app to read NDEF messages with the above code, What should I do?

[Brian TIDAL]

Hi,

my previous message was just a suggestion to check that the tag memory contains the expected NDEF data and thus to dump the tag memory with the android app.

Rgds

BT

[Schuyler]

HI,

​

As you can see, I need to write NDEF data to the STM32 CUBE IDE by NUCLEO-L476RG, Instead of writing through an application. I wrote the code above  in order to write the message, but  ST25 NFC tap app have not a single NDEF message, Please help me check whether the above code is correct and achieves the functions

​

[Brian TIDAL]

Hi,

a working example of NDEF writing is provided in X-CUBE-NFC7: NDEF_URI. I would suggest to first compile and run this example and then read the NDEF with the NFC tap app. Once this is working, just modify the MX_NFC7_NDEF_URI_Init function to write your own NDEF.

Rgds

BT

[Schuyler]

Hi,

​I compile and run this example and then read the NDEF with the NFC tap app.But is not working, the tap does not have any information

[Brian TIDAL]

Hi,

see § 1.2 Board setup in the UM2960 (Getting started with the X-NUCLEO-NFC07A1 NFC/RFID tag IC expansion board based on ST25DV64KC for STM32 Nucleo). Make sure the ST1 connector is in place on the 3.3V position. If you do not have a jumper, just put a wire between the middle pin and the 3.3V pin of the ST1 connector.

Without this jumper, the ST25DV device is not powered and the I2C communication is impossible.

Feel free to click on select as best if this solves your issue.

Thanks

Rgds

BT