I follow the ST25PcDemoApp_software_guide in ST25SDK-1.8.0 but I encountered an error at streader.dll."java.lang.UnsatisfiedLinkError: C:\Users\DengKai\workspace\st25PcDemoApp\resources\windows\x86\streader.dll: %1 is not a valid Win32 application"Ho...
Hi, I am using ST25DV04k Tag and I can see an external tool can write to my Tag over RF.I am trying to read RFA1SS, LOCK_CCFILE, LOCKFILE registers over I2C but always getting values as zeros. even if I write LOCK_CFG=1, LOCK_CCFILE=0x03, RFA1SS=0x0C...
Hi, i am trying to measure the matching impedance of the antenna. I have the following questions:What is the driver stage and how can i turn if off?How can i ensure that register 0x28 is set to 0x0F?How can i ensure that tr_am bit is set to 1?Thank ...
How to match the output of the internal power amplifier to 50OHM? The Datasheet doesn't provide the output impedance. I know the eval board provides a schematic for the matching, but i don't want to simply copy and paste. I would like to understand. ...
Hello community,I'm actually working on an NFC application using m24lr04e. I use hal_i2c_mem_read/write to read and write data to eeprom. I'm able to read and write user memory area. but for system memory i can only read it. I'm not able to change se...
Hi, I am building an android app to read mailbox with fastReadMailboxMessage() function. I have already had problems with that function and read somewhere on community.st that this function doesn't work and I should just use readMailboxMessage() inst...
Dear Sir/Madame, I am using X-NUCLEO-NFC03A1 connected to our MCU (NXP Kinetis). The communication protocol used is SPI and it works well (sends and receives echo). Therefore, we would like to read a text on the smartphone in "NDEF tag emulator" mode...
Hello, I am using the ST25R3916 reader. looking at the schematic of the filter and matching circuit I notice that the cutoff of the filter is lower than 13.5 M. I would like to double-check the L and C of the filter : 270 nH and 680 pF , thanks
We are evaluating ST25R3911B using the X-NUCLEO-NFC05A1 board, with our custom IMX6 system. We have tried RFAL with the nfc_poller_st25r3911 example. Initially, no tag was found. We determined that the problem was our long IRQ handling. Since we had...
When I set the tx power as 25 dBm in the application what would be output tolerance. What would be the output power accuracy?We understand that tolerance resolution would be the parameter to drive the step size. RegardsPrabhu