i.MX ProcessorsのトピックIMX6 GPIO CONTROL PROBLEM https://community.nxp.com/t5/i-MX-Processors/IMX6-GPIO-CONTROL-PROBLEM/m-p/610629#M92148 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>I have problem with GPIO pin on Board sabre SDP. When I export by SYSF pin EIM_DA0 I can't change value of this pin but when I export pin EIM_D18 I can change value without problem(I checked on osciloscope). I didn't see in device tree any configuration of that both pin but one work(EIM_D18) &nbsp;and &nbsp;EIM_DA0 doesn't. Do I need export pin to DeviceTree when I want use it as GPIO in SYSFS? Thank you</P></BODY></HTML> Wed, 22 Mar 2017 16:06:16 GMT sebastianpszczo 2017-03-22T16:06:16Z IMX6 GPIO CONTROL PROBLEM https://community.nxp.com/t5/i-MX-Processors/IMX6-GPIO-CONTROL-PROBLEM/m-p/610629#M92148 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>I have problem with GPIO pin on Board sabre SDP. When I export by SYSF pin EIM_DA0 I can't change value of this pin but when I export pin EIM_D18 I can change value without problem(I checked on osciloscope). I didn't see in device tree any configuration of that both pin but one work(EIM_D18) &nbsp;and &nbsp;EIM_DA0 doesn't. Do I need export pin to DeviceTree when I want use it as GPIO in SYSFS? Thank you</P></BODY></HTML> Wed, 22 Mar 2017 16:06:16 GMT https://community.nxp.com/t5/i-MX-Processors/IMX6-GPIO-CONTROL-PROBLEM/m-p/610629#M92148 sebastianpszczo 2017-03-22T16:06:16Z Re: IMX6 GPIO CONTROL PROBLEM https://community.nxp.com/t5/i-MX-Processors/IMX6-GPIO-CONTROL-PROBLEM/m-p/610630#M92149 <HTML><HEAD></HEAD><BODY><P>Hello bb,</P><P>&nbsp;&nbsp;&nbsp; Yes, you need to add it to device tree and multiplex it as GPIO.</P><P>Best Regards,</P><P>Weidong</P></BODY></HTML> Thu, 23 Mar 2017 01:35:58 GMT https://community.nxp.com/t5/i-MX-Processors/IMX6-GPIO-CONTROL-PROBLEM/m-p/610630#M92149 weidong_sun 2017-03-23T01:35:58Z