i.MX ProcessorsのトピックRead GPIO pin as fast as possible?? https://community.nxp.com/t5/i-MX-Processors/Read-GPIO-pin-as-fast-as-possible/m-p/275824#M30680 <HTML><HEAD></HEAD><BODY><P>Hi.</P><P></P><P>I'm working on a i.MX28 evk board and I want to read 1 byte from GPIO pins as fast as possible.</P><P>I'm workin with Linux OS and I would polling continuously GPIO pin.</P><P></P><P>Do you have any suggestion? </P><P></P><P></P><P>Best regards.</P></BODY></HTML> Fri, 19 Apr 2013 07:25:48 GMT Matteo 2013-04-19T07:25:48Z Read GPIO pin as fast as possible?? https://community.nxp.com/t5/i-MX-Processors/Read-GPIO-pin-as-fast-as-possible/m-p/275824#M30680 <HTML><HEAD></HEAD><BODY><P>Hi.</P><P></P><P>I'm working on a i.MX28 evk board and I want to read 1 byte from GPIO pins as fast as possible.</P><P>I'm workin with Linux OS and I would polling continuously GPIO pin.</P><P></P><P>Do you have any suggestion? </P><P></P><P></P><P>Best regards.</P></BODY></HTML> Fri, 19 Apr 2013 07:25:48 GMT https://community.nxp.com/t5/i-MX-Processors/Read-GPIO-pin-as-fast-as-possible/m-p/275824#M30680 Matteo 2013-04-19T07:25:48Z Re: Read GPIO pin as fast as possible?? https://community.nxp.com/t5/i-MX-Processors/Read-GPIO-pin-as-fast-as-possible/m-p/275825#M30681 <HTML><HEAD></HEAD><BODY><P>Hello,Matteo,</P><P>&nbsp;&nbsp;&nbsp;&nbsp; I can understand your meaning. I feel if you want to get to your participation, Real time OS should be selected ! Such as Real Time linux , QNX , VXworks etc.</P><P>&nbsp;&nbsp;&nbsp;&nbsp; Under common linux OS(non-real time), it is very difficult to improve more .</P><P></P><P>Regards,</P><P>Weidong</P></BODY></HTML> Fri, 19 Apr 2013 07:59:09 GMT https://community.nxp.com/t5/i-MX-Processors/Read-GPIO-pin-as-fast-as-possible/m-p/275825#M30681 weidong_sun 2013-04-19T07:59:09Z