Forum Posts
Resolved! Having issues with the ST25R3916
ST25R3916 is having issues, pointing to a layout issue but hoping for some insight also on the schematic (both attached). Have broken our board out and running the ST25R dev kit via SPI with our STM32 no problem pointing to issues with the ST25R. Pur...
Resolved! ST25RU3993-eval PCB Internal amplifier output differential traces don't look right for preferred impedance.
ST25RU3993-eval PCB Internal amplifier output differential traces don't look right for preferred impedance. See the traces circled in red. Shouldn't these be 100 ohm differential the same as the purple mixer feedback traces? The trace width in the...
Resolved! How to get RSSI for each 16 slots of ISO15693 inventory
Dear SirsIn the ST25R3911B_DISCO_FW_v1_2_8 code, the iso15693Inventory function does not response RSSI data. But in the Middleware i find a rfalGetTransceiveRSSI function that can read out the RSSI data. Could you please how to use rfalGetTransceiv...
Resolved! Dear all, which simple methode is suggest to identify if the ST25DV04kxxx has powered the STM32Lxxx?
Basically we have follwing problem: We have an App which reads out the ST25DV04K, behind we have STM32L011xxx which makes some calculations as well and the result is stored in the ST25DV04Kxxx. However sometimes the NFC field is not strong enough and...
Multiple tags ID in the GUI with the Inventroy button. Why is that?
HelloI made some tests with the eval board. I use the ISO15693 standard to read some tags. I wanted to read up to 20 tags. Very often I get same tag ID twice in one reads cycle. Is this normal? I had the problem in the GUI over the inventory button.R...
Resolved! NFC security essentials
We are looking to learn a bit about NFC security, and if the ST25 readers support some of those industry standards.Does ST have any reference material on this subject? Can you recommend a starting point for learning more, or perhaps advice on finding...
HOW to set the registers and out the maximum power of 1.4W
ST25R3911B-DISCO Board receiving distance is only 10CM，HOW to set the registers and out the maximum power of 1.4W
Resolved! peer to peer mode to 2-5 meters distance
We looking for a RFID devices (modules,IC) that can communicate in peer to peer mode to 2-5 meters distance (support anti collision algorithm) for iot implementation,Please advise