topic Re: PNEV7220BP1 connection? in NFC

PNEV7220BP1 connection?

DylanWang — Tue, 11 Mar 2025 03:40:27 GMT

Hi NXP Team

I bought a PEVN7220BPI board, if i want to use my host to connect with this board.
How can i do? i use the wiring as follows :
Host SCL <-> (J27 P2)
Host SDA <-> (J27 P3)
Host GND <-> (J27 P1)
power on by USB-C.
the i2c address = 0x28

I send a I2C waveform to PEVN7220BPI, but can't find it.
Can you help me? thank you.

Re: PNEV7220BP1 connection?

KaiLi — Tue, 11 Mar 2025 05:02:11 GMT

Hello @DylanWang

Please refer Table 1 of UG10068 (https://www.nxp.com/docs/en/user-guide/UG10068.pdf) to connect PNEV7220BP1 with Host correctly.

Re: PNEV7220BP1 connection?

DylanWang — Tue, 11 Mar 2025 06:37:52 GMT

Hi @KaiLi

base on Table 1 of UG10068

Host SCL <-> (J43 - 19)
Host SDA <-> (J43 -21)
Host GND <-> (J43 - 1)
Host 5V <-> (J43 - 37)
power supply via USB-C.
the i2c address = 0x28

but it is still not work. (i confirm the i2c address is 0x28 as attachment.)
Is there anything else I need to pay attention to?
Thank you.

Re: PNEV7220BP1 connection?

KaiLi — Mon, 24 Mar 2025 01:30:59 GMT

Hello @DylanWang

Besides I2C interface, VEN/IRQ/MODE_SWITCH also needs to be connected your Host.