Kinetis MicrocontrollersのトピックRe: help!.MKE16F256vll16: LPI2C cant't work. https://community.nxp.com/t5/Kinetis-Microcontrollers/help-MKE16F256vll16-LPI2C-cant-t-work/m-p/750772#M45762 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>首先你能试一下read_accel_value_transfer这个demo吗。它采用polling方式，3轴加速芯片的时序也和你的时钟芯片非常相似。你只需根据你板子的情况稍许改一下就可以了。</P><P></P><P>Regards,</P><P>Jing</P></BODY></HTML> Wed, 16 May 2018 10:01:19 GMT jingpan 2018-05-16T10:01:19Z help!.MKE16F256vll16: LPI2C cant't work. https://community.nxp.com/t5/Kinetis-Microcontrollers/help-MKE16F256vll16-LPI2C-cant-t-work/m-p/750771#M45761 <HTML><HEAD></HEAD><BODY><P>&nbsp; &nbsp; &nbsp; &nbsp; At first,sorry for my poor English. I used LPI2C0 module of the mke16f256 to drive DS3231 clock chip. my development environment is mdk. the driver program bases on the SDK examples.</P><P>&nbsp; &nbsp; &nbsp; &nbsp;I've tried&nbsp;POLLING and&nbsp;DMA two methods,but both of them didn't work. the MSR register would be 0x1300(i.e. EPF=1, SDF=1,FDF=1) whenever I used LPI2C_MasterSend (polling method) or LPI2C_MasterTransferEDMA(dma method). can anybody help me? i have been in this problem one days. it almost drive me crazy.&nbsp;part of code as follows:</P><P><span class="lia-inline-image-display-wrapper" image-alt="1.jpg"><img src="https://community.nxp.com/t5/image/serverpage/image-id/37968iDB8EB441501C5547/image-size/large?v=v2&amp;px=999" role="button" title="1.jpg" alt="1.jpg" /></span></P><P>send function</P><P><span class="lia-inline-image-display-wrapper" image-alt="2.jpg"><img src="https://community.nxp.com/t5/image/serverpage/image-id/39403i5737965E024A9861/image-size/large?v=v2&amp;px=999" role="button" title="2.jpg" alt="2.jpg" /></span></P><P>error</P><P><span class="lia-inline-image-display-wrapper" image-alt="3.jpg"><img src="https://community.nxp.com/t5/image/serverpage/image-id/36664i5D6317BEE1A50AE9/image-size/large?v=v2&amp;px=999" role="button" title="3.jpg" alt="3.jpg" /></span></P></BODY></HTML> Mon, 14 May 2018 09:02:16 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/help-MKE16F256vll16-LPI2C-cant-t-work/m-p/750771#M45761 sudongshan 2018-05-14T09:02:16Z Re: help!.MKE16F256vll16: LPI2C cant't work. https://community.nxp.com/t5/Kinetis-Microcontrollers/help-MKE16F256vll16-LPI2C-cant-t-work/m-p/750772#M45762 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>首先你能试一下read_accel_value_transfer这个demo吗。它采用polling方式，3轴加速芯片的时序也和你的时钟芯片非常相似。你只需根据你板子的情况稍许改一下就可以了。</P><P></P><P>Regards,</P><P>Jing</P></BODY></HTML> Wed, 16 May 2018 10:01:19 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/help-MKE16F256vll16-LPI2C-cant-t-work/m-p/750772#M45762 jingpan 2018-05-16T10:01:19Z