i.MX ProcessorsのトピックRe: Unexpected SPI frequency variation https://community.nxp.com/t5/i-MX-Processors/Unexpected-SPI-frequency-variation/m-p/714358#M111035 <HTML><HEAD></HEAD><BODY><P>Hi Deven,</P><P></P><P>which BSP/kernel are you using?</P><P></P><P>Carlos</P></BODY></HTML> Tue, 26 Sep 2017 20:02:37 GMT Carlos_Musich 2017-09-26T20:02:37Z Unexpected SPI frequency variation https://community.nxp.com/t5/i-MX-Processors/Unexpected-SPI-frequency-variation/m-p/714357#M111034 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P></P><P>I am working in imx7d sabresd. Right now I am testing SPI which is available in mikrobus with spitest application (link: <A class="link-titled" href="https://raw.githubusercontent.com/raspberrypi/linux/rpi-3.10.y/Documentation/spi/spidev_test.c" title="https://raw.githubusercontent.com/raspberrypi/linux/rpi-3.10.y/Documentation/spi/spidev_test.c">https://raw.githubusercontent.com/raspberrypi/linux/rpi-3.10.y/Documentation/spi/spidev_test.c</A>).</P><P></P><P>I am changing frequency (from application) so mostly I am getting nearby clock value(like for 25MHz output frequency is 20MHz), that is ok because it is using divider.</P><P>But when I am giving 3MHz,4MHz,8MHz and 9MHz I am getting very low frequency(below 1MHz), and when I am giving 2MHz it is reflecting as same 2Mhz. Why it is like that?</P><P></P><P>Thanks in advance,</P></BODY></HTML> Mon, 04 Sep 2017 10:43:38 GMT https://community.nxp.com/t5/i-MX-Processors/Unexpected-SPI-frequency-variation/m-p/714357#M111034 deven_solanki 2017-09-04T10:43:38Z Re: Unexpected SPI frequency variation https://community.nxp.com/t5/i-MX-Processors/Unexpected-SPI-frequency-variation/m-p/714358#M111035 <HTML><HEAD></HEAD><BODY><P>Hi Deven,</P><P></P><P>which BSP/kernel are you using?</P><P></P><P>Carlos</P></BODY></HTML> Tue, 26 Sep 2017 20:02:37 GMT https://community.nxp.com/t5/i-MX-Processors/Unexpected-SPI-frequency-variation/m-p/714358#M111035 Carlos_Musich 2017-09-26T20:02:37Z