Hello, I am a beginner in NFC Tags and i want to understand what this blocks and hexdecimal means and I want to know how to create it.If is programing or if it has a training for this. Tahnks

[JDias]

Please see the Picture below

It is what the CR95HF reads this tag NXP ICODE SLI (ISO 15693)in user memory

[Brian TIDAL]

​Hi,

basically, this is the hexadecimal dump of the tag physical memory. The physical memory of a tag following ISO15693 standard is organized in blocks (or pages) of fixed sizes (e.g. 4 bytes).

The list of commands that can be used to program a tag is defined in the tag manufacturer datasheet.

For ISO15693, you can use the following commands with ST25TV512, ST25TV02K, ST25TV16K or ST25TV64K tags from ST

• Read :
  • Read Single Block
  • Read Multiple Blocks
  • Fast Read Single Block (used to read the selected block at doubled data rate with ST readers)
  • Fast Read Multiple Blocks (used to read the selected blocks in a single area at doubled data rate with ST readers)
• write
  • Write Single Block
  • Write Multiple Blocks (not available on ST25TV512, ST25TV02K)

The format of these commands is described in the datasheet (just click on the product name to load the datasheet).

Rgds

BT

[JDias]

Hello,

Thanks for your response.

This datasheet are good stuff.

But what i meant is how to build this hexadecimal dump of the tag

For exemple: if i want that the first line (00) block(00) to count boxes in a conveyr belt.

Which kind of program i have to use for write this instruction in a Tag?

Thanks

Em dom, 31 de mar de 2019 às 19:16, ST Community escreveu:

[Brian TIDAL]

​Hi,

ST provides a complete middleware to build application using ST25 readers. For ST25R95 / CR95HF, you can download the X-CUBE-NFC3 v2.0.0 expansion software. You can then use the rfalNfcvPollerWriteSingleBlock() API to write a block.

Rgds

BT

[Brian TIDAL]

​Hi,

the list of supported Nucleo boards is available in User Manual "Getting started with the X-CUBE-NFC3 near field communication transceiver software expansion for STM32Cube™" (UM2045). The X-CUBE-NFC3 software comes with examples of implementation running on XNUCLEO-NFC03A1 plugged on top of one NUCLEO-L476RG, NUCLEO-F401RE or NUCLEO-F103RB. An example of rfalNfcvPollerWriteSingleBlock() is available in the demo.c file of the  X-CUBE-NFC3 package.

Rgds

BT