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PN7120 driver error : "pn54x_dev_write : i2c_master_send returned -5. When probe with scope, it seems that sometime, it is ACK the write from DH.

Question asked by Frank Wong on Oct 13, 2016
Latest reply on Nov 14, 2016 by Kan_Li

Hi I have integrated PN7120 Linux driver and HAL base on AN11690. I run the NXP test apk. It is able scan and discovered the NFC credit card. However, every once awhile, I'm getting the following errors from the driver. "pn54x_dev_write : i2c_master_send returned -5. When I probe i2c bus with scope, it seems that sometimes, it is response ACK on i2c write access.