i.MX6ULL always disable SNVS_TAMPER?

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i.MX6ULL always disable SNVS_TAMPER?

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enginlee
Contributor II

Hi,

My product uses i.MX6ULL (MCIMX6Y1DVM05AB) and I found TAMPER_PIN_DISABLE[1:0] is already written to 11b which means "disabled". Is that correct?

fuse.PNG

 

# cat /sys/fsl_otp/HW_OCOTP_CFG2
0x79f100f5
# cat /sys/fsl_otp/HW_OCOTP_CFG2
0x79f100ca

 

bits.PNG

 

Thanks,

-Engin

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weidong_sun
NXP TechSupport
NXP TechSupport

Hi enginlee,

Yes, it is disabled.

Tamper function is used for POS, it is enabled in i.MX6UL ,whose part number includes G2, for example:

MCIMX6G2DVM05AA(B/C/D)

MCIMX6G2DVK05AA(B/C/D)

these part numbers are designed for POS.

 

Hope these information is helpful for you.

Have a nice day!

B.R,

weidong

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weidong_sun
NXP TechSupport
NXP TechSupport

Hi enginlee,

Yes, it is disabled.

Tamper function is used for POS, it is enabled in i.MX6UL ,whose part number includes G2, for example:

MCIMX6G2DVM05AA(B/C/D)

MCIMX6G2DVK05AA(B/C/D)

these part numbers are designed for POS.

 

Hope these information is helpful for you.

Have a nice day!

B.R,

weidong

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