PN7150 can't work properly after reboot

[scott_zhang]

I have integrated PN7150 in MTK8766B platform android P . NFC can  work  after system download , but can't work after reboot . I don't know what's the problem , please help me ! 

Attachment are logs .

[jimmychan]

Is the PN7150 reset properly? Please refer to the "Reset concept" in the datasheet for the details.

[scott_zhang]

Do you mean that I need to set VEN low for a while then high ? I have tried this method , it's not working.

And now I find I2C reading or writing is ok no matter sytem responses or not.

I find that setting NFC switch button in configuration menu off then on will solve the problem. But I don't

know why.