i.MX Processors中的主题 Re: About ONOFF pin

About ONOFF pin

goto11 — Fri, 04 Oct 2019 08:24:12 GMT

hello,Community

Can the status of the button connected to the ONOFF pin be read with a register?

best regards

Goto

Re: About ONOFF pin

gusarambula — Mon, 07 Oct 2019 21:28:54 GMT

Hello Goto,

Are you using the i.MX6? If that’s the case the following thread may help. If not, please let me know which processor you are using.

https://community.nxp.com/message/333554?commentID=333554#comment-333554

Regards.

Re: About ONOFF pin

goto11 — Mon, 07 Oct 2019 23:35:05 GMT

hello,Community

Sorry, the information is missing
The target device is i.MX7d.
Can the status of the button connected to the ONOFF pin be read with a register?

best regards

Goto

Re: About ONOFF pin

gusarambula — Tue, 08 Oct 2019 20:46:40 GMT

Hello Goto,

My apologies. Allow me to investigate what would be the register that allows you to read the status of the ONOFF button on the i.MX7. I will let you know when I have more information.

Regards,

Re: About ONOFF pin

gusarambula — Thu, 10 Oct 2019 20:03:44 GMT

Hello Goto,

My apologies for the delay.

If you want to check that the ONOFF button is pressed or not you can read BTN bit of SNVS.HPSR register. and if you want count of button pressed then you can check it through $cat /proc/interrupts

If you need more details on this register and the SNVS module please consult the i.MX7D Security Reference Manual, which is distributed under an NDA.

I hope this helps!
Regards,