Hello,We are using ST25R3920B as NFC reader for our project. In order to implement the functionality we integrated the nfc RFAL driver provided from ST. We need to develop the software with respect to ASPICE guidelines. I would like to ask whether th...
Hi there!I'm working on a Windows console application which uses ST25R3911DISCOComm DLL to communicate with ST25R3911B-DISCO board to process a ISO 14443A card (ST25R3911DISCOComm DLL is located in ST25R3911B_Discovery_GUI App installation directory)...
Hi, We have a product with ST25R3911B and we failed the EMI pretest, mainly due to 3rd harmonic at 40.6MHz.I suspect that this is because we use polling for RFID tag detection, and the reason we are doing polling is because in wakeup mode the device ...
哈喽！ST官方，本人使用ST25R3911B这款芯片做NFC识别方案；同样的电路，做了5块板子，发现天线识别NFC标签的表现不一致；1、1号板子可以正常识别NFC标签；2、2号板子不能正常识别标签，需要调节匹配电路参数，且这两款板子调节的参数不一致；3、将1号的板子调整为2号的参数，1号板子无法识别，工作不正常；4、其余的板子也是，调整参数都不一致，才能正常工作。请问，大佬们，这是什么原因？都是同样的电路。
Hello, I have a ST25R3916B project that is working fine, largely based around the demo_polling.c application. We use one '3916B and switch between different antennas. Each time we switch obviously the RF characteristics change a little, so I'd like...
Hello,I have made a custom RFID reader board design which is similar to the X-NUCLEO-NFC08A1. However, it powers antennas in single ended mode with a cable through a u.fl connection. I am running the example code for the X-NUCLEO-NFC08A1 on this cust...
Hello, I have one ST25R3916B that feeds a few antennas spread out over 23 inches of length, using relays so that only one antenna is connected at a time. The ST25R3916B is located in the middle of the length. Traces are 20mil wide with ground plan...
Hi,This may be a newbie question as I'm very new to RFID tags/readers.I used one of the example codes for ST25R3911B. I am able to read the User ID/NFC ID but it doesn't show the Card Data. I'm not sure what kind of data to expect from the card but o...
Hello,I was wondering how to edit the analogConfigTbl_NFC08A1.c file in order to change the chip's operation from differential to single ended. I have looked at datasheets and it is very confusing what register-mask-value should be used to enable sin...
I recently purchased a STEVAL$25R3916BA evaluation kit because I was given to understand that this had a 64-bit DLL available, whereas the older 3911-based kit didn't.However as I have started to write code based on the DLL, I have found it is actual...