ST25DV64KC GPO pulse when i2c write EEPROM

[jerry chang]

 Hi

I'm using ST25DV64KC, my I2C host is STM32G474

There are two problem, need support. 

Please see detail. Thank you!

1. I would like GPO generates a pulse when i2c write EEPROM(user memory)

but it doesn't work, the GPO always output Low

I have confirmed, the GPO_EN = 1 in GPO1 register, I2C_WRITE_EN = 1 in GPO2 register

2.Can I use ST "NFC Tap" app for testing? How? Could you provide more detail information to me?

EX. NFC Tap app send some RF command, and use I2C to read the data.

[NDvas.3]

As for question #1, did you remember to connect a pull-up resistor to the GPO output? A value of 10K would do the job.

Nir

[France Berthelot · Accepted solution]

Hello

For #2, you can use Mobile apps and register feature (static/Dynamic) to configure GPO.

Regards,FB