About Stellar

Stellar · 2024-01-09

Hi,I'm using an X-NUCLEO-NFC03A1 board with an nRF52840DK. I'm running my own driver on Zephyr and I'm able to read tags by polling. I plan to set the chip in the tag detector WFE so that once a tag is detected, it can wake up the host to handle the ...

Stellar · 2024-01-22

Hi,The command works! We don't need the Card Emulation, we just use it to wake up the host MCU from deep sleep mode.Thanks.

Stellar · 2024-01-22

Hi, We use ISO14443A tag Type 2.BTW, I checked both the st25r95 and cr95hf data sheets, the st25r95 shows a Filed detector mode in Table 3 while cr95hf doesn't. My X-NUCLEO-NFC03A1 has a cr95hf on it, does it mean the field detector WFE is not sup...

Stellar · 2024-01-17

Got it. By the way, does the ST25R95 sense a tag removal and notify with an IRQ_OUT pulse? I would like to set the chip in tag detection at first, once a tag approaches I will read the tag, and then set it in tag detection again if the tag is remove...

Stellar · 2024-01-16

Hi,Nice suggestions.We know the calibration has to be performed in free air. For strategies iii and iv, what if the user places a tag next to the antenna by accident in the power on or recalibration phase? I mean from the user's perspective, they d...

Stellar · 2024-01-15

Thank you, Brian.Setting <WUperiod> to 0x00 solves the problem. If the boards are connected with wires, the DAC pairs by calibration are (0x68 and 0x78) and if they are connected with the interposer it is (0x48 and 0x58).Getting in the tag detector s...

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ST25R95/CR95HF wake up from tag detector without tags

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Re: ST25R95/CR95HF wake up from tag detector without tags

Re: ST25R95/CR95HF wake up from tag detector without tags

Re: ST25R95/CR95HF wake up from tag detector without tags

Re: ST25R95/CR95HF wake up from tag detector without tags