2019-01-26 05:05 AM
Hello all,
I am trying to understand how to configure the ST25R3911B to comply with the ISO15693.
In particular I do not understand how to set the Low/High Bitrate.
Looking at the datasheet of the ST25R3911B the Bit Rate Definition Register lowest achievable value is fc/128 while the ISO 15693 goes fc/2048!
I cannot find much of information how to setup the ISO15693 on the datasheet. Is there some other reference, or instructions on how to do so?
Thank you!
Update:
Checked the other questions...
https://community.st.com/s/question/0D50X00009XkWIeSAN/iso-15693-sof-eof-for-st25r3911b
But it seems that ISO15693 is not inherently supported... So I wonder if it should be mentioned in the specs as it is more like a custom protocol implementation with coding/decoding performed in the external logic and not within the ST25 device among all.
Solved! Go to Solution.
2019-01-28 07:08 AM
Hi,
yes the ST25R3911B does internally implement all of ISO15693-2. Bit coding/decoding and framing needs to be done in SW. ST provides software showing 1of4 high data rate using one subcarrier - e.g. inside X-CUBE-NFC5.
Low data rate is also possible but not supported by this software. More RAM will be required and decoder logic needs to be changed.
Regards, Ulrich
2019-01-28 07:08 AM
Hi,
yes the ST25R3911B does internally implement all of ISO15693-2. Bit coding/decoding and framing needs to be done in SW. ST provides software showing 1of4 high data rate using one subcarrier - e.g. inside X-CUBE-NFC5.
Low data rate is also possible but not supported by this software. More RAM will be required and decoder logic needs to be changed.
Regards, Ulrich