Tamper Pin enable in imx6ul G2

[akshay2528]

Hi,

We are using imx6ul G2 in our custom design.

Below are few queries regarding Tamper Detection Pins:

1) By default what is set to the tamper detection pins. Is it as tamper detection or as GPIO?

2) If it configured as GPIO, we want to configure TAMPER_PIN 0 as tamper detection. Could you please help on how to do this?

3) If we configure Tamper pins once, can the configuration be reverted back?(Either as GPIO or Tamper detection)

Regards,

Akshay

[jimmychan]

1) GPIO

2) It depends on the fuse setting TAMPER_PIN_DISABLE[1:0]. Details please read the Table 5-9 in RM.

3) Once the fuse setting is fixed, the configuration cannot reverted back.