topic Re: i.MX6 GPIO pull up in i.MX Processors

i.MX6 GPIO pull up

sugiyamatoshihi — Tue, 07 Nov 2017 10:44:18 GMT

Hi,

I have a question pin output setting.

When a port is output mode, it means OBE is enabled or functional output, is it possible to enable keeper or pull up/down resistor?

In application note, AN5078, there is a description below.

The keeper device is able to keep the previous output value when the output driver is disabled.

Best Regards,

Sugiyama

Re: i.MX6 GPIO pull up

diegoadrian — Thu, 30 Nov 2017 21:01:43 GMT

Hello,

I apologize, but I do not understand what you want to your question. However, if you want to know if it is possible to enable/disable the keeper. Yes, it is possible.

Best Regards,

Diego.

Re: i.MX6 GPIO pull up

sugiyamatoshihi — Fri, 01 Dec 2017 04:45:41 GMT

Hi, Diego,

Thank you for the answer.

I also think it is strange. I asked customer why pullup/down is required in output mode, but no answer, yet.

Anyway, I understand pullup/down and keeper can enable regardless input and output mode.

Best Regards,

Sugiyama