topic IMX6UL One nano second delay in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/IMX6UL-One-nano-second-delay/m-p/987212#M146596 <HTML><HEAD></HEAD><BODY><P>Hi,</P><SPAN> </SPAN><P>I have IMX6ul based&nbsp;custom board and i want to generate 1 nano second delay in kernel driver. I tried&nbsp;with ndelay(), hrtimer APIs&nbsp; using gpio toggling but delay goes to microseconds? How can i proceed for this?&nbsp; Is it possible use timer registers directly in my kernel driver? If so please provide samples.</P></BODY></HTML> Thu, 31 Oct 2019 11:59:25 GMT balasubram 2019-10-31T11:59:25Z IMX6UL One nano second delay https://community.nxp.com/t5/i-MX-Processors/IMX6UL-One-nano-second-delay/m-p/987212#M146596 <HTML><HEAD></HEAD><BODY><P>Hi,</P><SPAN> </SPAN><P>I have IMX6ul based&nbsp;custom board and i want to generate 1 nano second delay in kernel driver. I tried&nbsp;with ndelay(), hrtimer APIs&nbsp; using gpio toggling but delay goes to microseconds? How can i proceed for this?&nbsp; Is it possible use timer registers directly in my kernel driver? If so please provide samples.</P></BODY></HTML> Thu, 31 Oct 2019 11:59:25 GMT https://community.nxp.com/t5/i-MX-Processors/IMX6UL-One-nano-second-delay/m-p/987212#M146596 balasubram 2019-10-31T11:59:25Z Re: IMX6UL One nano second delay https://community.nxp.com/t5/i-MX-Processors/IMX6UL-One-nano-second-delay/m-p/987213#M146597 <HTML><HEAD></HEAD><BODY><P>Hi BALA</P><SPAN> </SPAN><P></P><SPAN> </SPAN><P>I am afraid it is not possible to use timer for such small delays, probably</P><SPAN> </SPAN><P>one can try to add some nop operations in code.</P><SPAN> </SPAN><P></P><SPAN> </SPAN><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 31 Oct 2019 23:47:52 GMT https://community.nxp.com/t5/i-MX-Processors/IMX6UL-One-nano-second-delay/m-p/987213#M146597 igorpadykov 2019-10-31T23:47:52Z