Ask questions and find answers on ST25 NFC/RFID tags and readers, including connectivity implementations and antenna design.
Hello, SirI had download STSW-ST25RU003.zip from ST Website.After encompress file, I found there are some folder with MDK-ARM of firmware_Eval folder.May I know what's different these MDK-ARM folders ? and which one is correct for software RD referen...
Hi There,We would like to know more details about the antenna specification of the flex sticker antenna which is supplied with ST25R3911B-DISCO reader boards.Please let us know if we can interface the above antenna with ST25DV IC. Image of the antenn...
Hi, I'm using ST25r3911 for my project and have to work on DESFire card. I know there is code support for ISO/IEC 14443 cards on STSW-ST25R002. We can use DESFire as T4T for read and write. Is there any example of how to perform read/write?Also ...
With reference to Page 21, Table 16 in the ST25R95 Data Sheet, where would I find a description of all of the Data Field parameters for 15693 tags? (I see only one example in which the data value of is 022000 given).Thanks,Jim
The autotuning algorithm implemented in the app reader, is an external routine? I mean, the IC ST25RU3993 by itself can not tune an antenna. I guess that we need to implement some algorithm making a sweep and checking the reflected power, and then fi...
I am using a CR95HF chip with ISO14443A cards. I can select the card, read it's UID and all the data storred on the card without any errors.The problem is when I remove one card out of the field and place another card in the field, it refuses to resp...
I'm working on a project that involves NFC communications, so I bought the two product listed in the title to start prototyping. The first step in my plan was to get some sample code running, so I downloaded the X-CUBE-NFC5 package. However, it's un...
I've been using the M24LR-Discovery kit to evaluate the read range to our 15693 tags. My measurements are in the 2.6 inch to 3.5 inch range, depending on how I set the Data Rate and subcarrier settings. The best range is achieved with 'LOW' date ra...
Hello everybody,I am trying to drive ST25T3911B with STM32F072RB. I am using X-NUCLEO-NFC05A1 mounted on the NUCLEO-F072RB.I have configured NUCLEO-F072RB with STM32CUBEMX, you can find the project file attached; for my application I have added CAN c...
Hello,I am using the ST25R3913, following the application note and matching tool to define LC components for EMC filter and matching circuit. Now the function test is quite good, but I have a high pulse at 3rd harmonics (40.8MHz), do you have similar...