Hello,i want to design a new antenna layout with the ST253911b chip.It is recommended to match the antenna across RFO1 and RFO2 to a load impedance of 10 Ohm.Do i have to change the register "RFO normal level definition register" adress 27h to 10Ohm?...
Using a Raspberry Pi, I have been able to successfully connect to and read tags from NUCLEO-NFC05A1, NUCLEO-NFC06A1, and ST25R3916-DISCO. However, I am unable to get ST25R3911B-DISCO to work using the ST25R3911B Linux drivers. For some reason the Ras...
Hello allI use ST25DV64K.If the I2C communication is normal, it returns ACK after receiving data, and after receiving the last data, it returns NACK response and issues Stop Condition.If the I2C communication is abnormal, and the master issues a stop...
I am using STEVAL-SMARTAG1 and ST Link V2 (https://www.st.com/en/development-tools/st-link-v2.html)Find the connections in the image attached.Please share details related to required connections, debugger configuration etc.
Hi,We tested the receiving sensitivity of the RFID reader evaluation kit ST25RU3993-HPEV, and the actual measurement is -66dBm, but the sensitivity given in each document is -77dBm.The sensitivity given here(-77dBm) is the sensitivity of the ST25RU39...
Hello,I want an information regarding longevity or life span for HF reader IC ST25R3911Bthanking you in advanceRegardsPrathamesh
I would like to start setting area protection passwords on some of these chips. I have a FEIG RFID reader which I can do this through using the ST25PC-NFC Windows Application, but the reader won't fit into the space I need to reach the chip during n...
Hi,I don't really understand the datasheet of the ST25R3916 IC chip.At page 53, they show an exemple of a direct write command. As I understand, we need to send 1-1-C5-C4-C3-C2-C1-C0. When I check table 13 to see the command code that go for bits C5....
Hi,According to the datasheet, the differential impedance between TX1 and TX2 is 27Ohm for 3.3V and 16Ohm for 5V. For the version without EMI filter the matching criteria should: input impedance of the maching circuit is eqault to ST25R95 differentia...
STM32L476VG is the MCU we are interfacing with ST25R3911B using SPI.what we have understood from some search is that we need RFAL (abstraction layer) to interface with RF HAL.Then once we integrate RFAL and RF HAL in our system workbench(ac6) project...