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Tamper Pin Disable in i.MX6UL G3

Question asked by vineeth113 754 on Mar 2, 2017
Latest reply on Mar 14, 2017 by Manot Swasdee



 We are using imx6ul G3 in our of our custom design. We want to configure TAMPER_PIN 9 as GPIO but we are unable to do so.

We tried to set the SW_MUX_CTL_PAD_SNVS_TAMPER9 SW MUX Control Register (0x020E0040) to value 0x5 but when we read back its showing as 0. We tried the same with all the other TAMPER pins(0-9) as well. Also, when we read the fuse register(0x430, TAMPER_PIN_DISABLE[1:0]), its giving value as 0xf0216801 ( Which means TAMPER_PIN_DISABLE[1:0] is set to 0x2(10)).

Please let us know how to configure Tamper Pin as GPIO’s .