ST25 NFC/RFID tags and readers

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Resolved! ST25R3917 doesn't commnicate on the I2C

ST25R3917 doesn't commnicate on the I2C (Address 0x50) it seems like the chip doesn't start. Maybe a problem with the crystal?- Drawn current is 50uA- Signal on MCU_CLK is a 32.5kHz Squarewave- IRQ line stays lowI assume that the capacitance on the 2...

Resolved! ST25R3916irq error problem ?

We are communicating with the st25r3916 chip normally.But after about 14 minutes,The value of the IRQ pin is maintained at HIGH.You fall into an infinite loop in the function st25r3916CheckForReceivedInterruptts().What is the problem ?please I'd appr...

superK by Associate II
  • 23 replies
  • 1 kudos

Resolved! ST25R3916 Discovery GUI issue

Hi,I'm not able to use the GUI (W7). The DFU driver is not detected and the guidelines to fix it are not clear.At page 5/32 the UM2517 claims:Enter “C:\Program Files (x86)\STMicroelectronics\ST25R3916_Discovery_GUI\Driver�? and install it.But the \Dr...

Gaston by Associate III
  • 6 replies
  • 0 kudos

Resolved! ST25R3914 Read/Write to Tag

All, I would like to first begin with saying thank you for your time in attempting to assist me.Library used: NFC st25r3911b LibraryI am attempting to read and write from/to a tag; more specifically a Type-2 and Type-4. I have been looking through ex...

APant.2 by Associate III
  • 12 replies
  • 0 kudos