ST25 NFC/RFID tags and readers

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Resolved! st25r3916 - st25r3916B compatibility

Hello,I wanted some more clarification on the st25r3916B chip, it is very interesting as well as cheap compared to st25r3916 and covers my needs.are they interchangeable? do they have pin to pin compatibility? the firmware has not yet been released o...

Resolved! Flash via NFC. (Logic question)

Hello,I want to update the MCU firmware using NFC.I have a iphone and will create an app or use existing one, and st25dv dynamic tag which uses I2c to connect with stm32f411re.And want to create a custom bootloader in flash similar to BL provided by ...

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Vmere.1 by Senior
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Resolved! Hard fault (usage fault, invalid state), using X-CUBE-NFC03 and FreeRTOS, with STM32L4. Seems dependent on code/data size. Any idea where I should investigate ?

Hello,I am trying to develop a FreeRTOS application which need to detect/read/write an NFC tag.I managed to make the NFC part work (based on ST's example code), but after changing my task stack size, a usage fault occurs (FORCED, INVSTATE).After a fe...

Slan by Associate II
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Resolved! Data Rate of st25dv?

Hello,If the NFC operates at 13.56MHz and data rate is 100–420 kbps.How fast a data of 10kB can be transferred with a 100kbps speed.?Is it (10kB * 8/100k) + (10kB * 8/100k) * (overhead) ?Regards,Vmere

Vmere.1 by Senior
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  • 3 replies
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Resolved! Fast transfer mode vs NDEF&EEPROM

Hello,I'm developing a project where we will be using a ST253916 for a reader/writer device (base station) and a ST25DV type 5 tag (battery powered device). The idea is to transmit data from battery device to the base station. It will be hundred of b...

DSant.2 by Associate II
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Resolved! FIELD RISING and FIELD FALLING Interrupt flags are set simultaneously irrespective of direction of movement of reader with respect to st25dv tag

Hello, I am working on project where I need to check if field is falling or rising. I have enabled the filed change interrupt in GPO, which works fine to generate the GPO interrupt. Unfortunately both the interrupt flags for field change interrupt i....

ADant.1 by Associate II
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