i.MX Processors中的主题 Re: Tamper Pin in IMX6

Tamper Pin in IMX6

koperapune — Mon, 16 Dec 2013 15:04:09 GMT

We are developing a product using imx6-sl. We want to add support to detect tampering whenever case/box is unauthorizedly opened.

I have seen Pin named Tamper. however I haven't seen any instruction on interrupt handling for the Tamper Pin in the reference-manual. Would you please help me to add support for the driver?

Re: Tamper Pin in IMX6

Yuri — Tue, 17 Dec 2013 04:45:06 GMT

Please use the Security Reference Manual for i.MX 6SoloLite.

https://www.freescale.com/webapp/Download?colCode=IMX6SLSRM&appType=moderatedWithoutFAE&fpsp=1&Parent_nodeId=13376976604…

i.MX6SL: i.MX 6SoloLite Family of Applications Processors

Re: Tamper Pin in IMX6

koperapune — Tue, 18 Feb 2014 06:00:47 GMT

YuriMuhin_ng
Hi Yuri,

The document helped , thanks a lot for that ...
I now know the registers that can be used to handle the tamper functionality.

But the problem is that , quite some registers are marked "Privileged Write access" .... They say that, only privileged software can write to these registers .... but i didn't quite get as to what is meant by privileged software ....
Can you pls point me to what could the document mean by privileged software .... ?? i.e. how can I get an access to these privileged registers ... ??

Thanks in advance !!

Re: Tamper Pin in IMX6

Yuri — Wed, 19 Feb 2014 05:19:51 GMT

Please take a look at the following :

ARM Information Center