About ANaud.1

ANaud.1 · 2021-07-28

Hi,I don't really understand the datasheet of the ST25R3916 IC chip.At page 53, they show an exemple of a direct write command. As I understand, we need to send 1-1-C5-C4-C3-C2-C1-C0. When I check table 13 to see the command code that go for bits C5....

ANaud.1 · 2021-06-16

Is there a way to have any MCU control the antenna function of the ST25R3916, if we use the ST25R3917, as there is a stock shortage of the 3916 ?

ANaud.1 · 2021-06-01

I am a student starting in highspeed tuning...

ANaud.1 · 2021-05-13

Hi,Is there, by any chance, a substitution for the white LED power supply for large display blacklight used in the STM32H45I-DISCO LCD schematic ?The product have 0 stock everywhere and will be available in 20 weeks. I can't wait that long to test my...

ANaud.1 · 2021-05-07

Hi,I was wondering if we can use the ST25R3916 or 3917 with two antenna. We connect one on the output/input of the RFO1/RFI1 and the other on the RF02/RFI2. Is that something possible ? I can't seem to find my answer in the datasheet.Also, I want to ...

ANaud.1 · 2021-08-10

Hi Ulysses,After sending 93h 20h, I try to read the fifo register using 9Fh 00h, but can't see anything. Is that normal? Is the command 93h 20h only resolve the UID by itself? I am confused by this part. And what do you mean by handling collisions?th...

ANaud.1 · 2021-08-09

Good morning Ulysses,I have done a few checks on my own and understand a lot more. I think I was doing it all wrong... For your question, yes it was a typo, it was 0x23 in step 4, sorry for that.I am currently using an NFC NTAG213 from NXP. I've read...

ANaud.1 · 2021-08-03

Hi Ulysses,I tried using an NFC-A type 2 tag, with the code you write, using the WUPA direct command. Everything works fine. Now, I am trying to do it manually and here are the steps I used:Write direct command C1 on the SPI bus.Write to the register...

ANaud.1 · 2021-08-02

Good morning Ulysses,Thanks for your answer. I am trying to read an NFC-V tag (type 5) that was given in the ST25R3916 Discovery Kit. Is the procedure you gave me still the same for this type of tag ? What should I change to setup the device to be ab...

ANaud.1 · 2021-07-30

Hi Ben,This is really helpfull, but is there a place that I can see what each communication is for and what it is doing ? There is a lot of communication going on and its hard to understand each one.Thanks again,Antoine

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How can we read/write using SPI

MCU control the antenna function of ST25R3916

Why in the STM32H7445I-DISCO Highspeed path length we only consider the length between the resistance and the ram, but not the length of the resistance to the MCU (for example the netRXX to the MCU pin)? So we don't consider the full path between MCU-RAM?

Need STLD40D substitution

ST25R3916 or 3917 with two antenna

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Re: How can we read/write using SPI