S32KのトピックRe: S32K144 SPI Speed https://community.nxp.com/t5/S32K/S32K144-SPI-Speed/m-p/867552#M3816 <HTML><HEAD></HEAD><BODY><P class="" style="color: #333333; background-color: #f7f8fa; font-size: 14px;"><SPAN class="" data-group="0-0" style="color: #4a90e2;">Dear engineer,</SPAN></P><P class="" style="color: #333333; background-color: #f7f8fa; font-size: 14px;"><SPAN class="" data-group="1-0">Thank you very much for your reply.</SPAN></P></BODY></HTML> Tue, 05 Mar 2019 06:43:58 GMT zhouwe 2019-03-05T06:43:58Z S32K144 SPI Speed https://community.nxp.com/t5/S32K/S32K144-SPI-Speed/m-p/867550#M3814 <HTML><HEAD></HEAD><BODY><P class="" style="color: #333333; background-color: #f7f8fa; font-size: 14px;"><SPAN class="">Dear engineer,</SPAN></P><P class="" style="color: #333333; background-color: #f7f8fa; font-size: 14px;"><SPAN class="" style="color: #4a90e2;">In S32K144 working in (Run mode), SPI0 as slave (using DMA), PLLCLK=160MHz,LPSPI0_CLK=BUSCLK=80MHz;</SPAN></P><P class="" style="color: #333333; background-color: #f7f8fa; font-size: 14px;"><SPAN class="">I would like SPI's Baud Rate&gt;20MHz, but when sending data using a 21.5mhz host (STM32), S32K144 will have partial data errors (high half byte of random bytes).</SPAN>The project configuration is shown in the following figure:<span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/75200iBFCD771D67860323/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P class="" style="color: #333333; background-color: #f7f8fa; font-size: 14px;"><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_2.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/75246iBC927495BC628562/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_2.png" alt="pastedImage_2.png" /></span></P><P class="" style="color: #333333; background-color: #f7f8fa; font-size: 14px;"><SPAN>The data is correct on the SPI bus, but there are always a few bytes in the S32K144 RXBuffer (20 bytes) that are wrong (Baud Rate&gt;12MHz, less than 12MHz host send interval less than 2ms will also be wrong).</SPAN></P><P class="" style="color: #333333; background-color: #f7f8fa; font-size: 14px;"><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_3.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/75248i529E8F19688C1792/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_3.png" alt="pastedImage_3.png" /></span></P></BODY></HTML> Mon, 04 Mar 2019 15:50:52 GMT https://community.nxp.com/t5/S32K/S32K144-SPI-Speed/m-p/867550#M3814 zhouwe 2019-03-04T15:50:52Z Re: S32K144 SPI Speed https://community.nxp.com/t5/S32K/S32K144-SPI-Speed/m-p/867551#M3815 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/77336i4CD104A1BE01173A/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P></P><P>Regards,</P><P>Lukas</P></BODY></HTML> Tue, 05 Mar 2019 05:19:36 GMT https://community.nxp.com/t5/S32K/S32K144-SPI-Speed/m-p/867551#M3815 lukaszadrapa 2019-03-05T05:19:36Z Re: S32K144 SPI Speed https://community.nxp.com/t5/S32K/S32K144-SPI-Speed/m-p/867552#M3816 <HTML><HEAD></HEAD><BODY><P class="" style="color: #333333; background-color: #f7f8fa; font-size: 14px;"><SPAN class="" data-group="0-0" style="color: #4a90e2;">Dear engineer,</SPAN></P><P class="" style="color: #333333; background-color: #f7f8fa; font-size: 14px;"><SPAN class="" data-group="1-0">Thank you very much for your reply.</SPAN></P></BODY></HTML> Tue, 05 Mar 2019 06:43:58 GMT https://community.nxp.com/t5/S32K/S32K144-SPI-Speed/m-p/867552#M3816 zhouwe 2019-03-05T06:43:58Z