About adambartyzal

adambartyzal · 2024-03-28

Hello,I'm building a proprietary NFC reader based on ST25R3917 chip and STM32F070CBT6 MCU. I use Bare Metal approach without any HAL or RFAL which might complicate my query a bit but I'll try to ask anyway. So far I'm able to Poll Type A and Type B c...

adambartyzal · 2020-10-30

Hello,I'm developing custom NFC modul with CR95HF and I'm having difficulties with reading ISO 14443-B card. So far I've built a hardware prototype and written a simple python class and script for controlling CR95HF protocol. With ISO 14443-A I'm abl...

adambartyzal · 2024-04-02

Hi,the issue was rather dumb. I was missing hexadecimal modifier when writing to those two registers. Adding \x helped and now the wake up mode works like a charm. Thanks again for noticing it. I feel bit embarrassed for bringing it in here.

adambartyzal · 2024-03-29

Hi,you're right! I don't now how could I overlook that. In my code I actually want to send something entirely different:void Nfcm::setWakeUpParameters(){next = &Nfcm::setWakeUpTimeout;writeToRegister(0x33, "20"_B); // delta = 2}void Nfcm::setWakeUpTi...

adambartyzal · 2021-02-07

Just a small update after 3 months.In the end I've decided to choose ST25R3917 since it has less (for me) unnecessary features than it's siblings. It's far less intuitive than CR95HF (at least when you decide not to use RFAL as I did cause I want my ...

adambartyzal · 2020-11-05

For future visitors of this thread:It turned out the card is a Calypso card which use a Pre ISO14443-B protocol called B' Prime, also known as Innovatron protocol. After obtaining documentation from Calypso, I discovered that the structure of RF resp...

adambartyzal · 2020-11-04

Well that's quite unfortunate.We're a bikesharing company called freebike (formerly homeport) and in the La Rochelle city we operate a system of docking pedal bikes for many years, but now we've added e-bikes which can be rented by swiping rfid card....

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Troubles entering WakeUp mode on ST25R3917

No ATQB after REQB in custom NFC modul, although Type-A communication works.

Re: Troubles entering WakeUp mode on ST25R3917

Re: Troubles entering WakeUp mode on ST25R3917

Re: No ATQB after REQB in custom NFC modul, although Type-A communication works.

Re: No ATQB after REQB in custom NFC modul, although Type-A communication works.

Re: No ATQB after REQB in custom NFC modul, although Type-A communication works.