topic CAN-BUS communication in Other NXP Products https://community.nxp.com/t5/Other-NXP-Products/CAN-BUS-communication/m-p/457003#M3312 <HTML><HEAD></HEAD><BODY><UL><LI>The file include the simplified SCH of CAN-BUS module and the official routine of CAN-BUS module.And my problem is that Tx can not transmit any @signal,also the Rx can not receive any signal.Can you help me?Thank you!</LI></UL></BODY></HTML> Fri, 22 May 2015 12:55:21 GMT 935512732 2015-05-22T12:55:21Z CAN-BUS communication https://community.nxp.com/t5/Other-NXP-Products/CAN-BUS-communication/m-p/457003#M3312 <HTML><HEAD></HEAD><BODY><UL><LI>The file include the simplified SCH of CAN-BUS module and the official routine of CAN-BUS module.And my problem is that Tx can not transmit any @signal,also the Rx can not receive any signal.Can you help me?Thank you!</LI></UL></BODY></HTML> Fri, 22 May 2015 12:55:21 GMT https://community.nxp.com/t5/Other-NXP-Products/CAN-BUS-communication/m-p/457003#M3312 935512732 2015-05-22T12:55:21Z Re: CAN-BUS communication https://community.nxp.com/t5/Other-NXP-Products/CAN-BUS-communication/m-p/457004#M3313 <HTML><HEAD></HEAD><BODY><P>The code looks normal. What looks wrong is the connection you have.&nbsp; There are swapped RX and TX pins between MCU and PHY. But maybe it is just mistake on the SCH.</P><P>If the connection is correct, means PB0/PC10 to TXD and PB1/PC3 to RXD then you can try this:</P><P>- set weak pull ups on RX pins</P><P>&nbsp; <SPAN style="font-size: 10.5pt; font-family: 'Times New Roman','serif';">SIU.PCR[35].R = 0x0103;</SPAN></P><P><SPAN style="font-size: 10.5pt; font-family: 'Times New Roman','serif';">&nbsp; <SPAN style="font-size: 10.5pt; font-family: 'Times New Roman','serif';">SIU.PCR[17].R = 0x0103;</SPAN></SPAN></P><P>- look at ECR and ESR registers to know if there is any error</P><P></P><P>BR.</P><P>Petr</P></BODY></HTML> Tue, 26 May 2015 08:46:34 GMT https://community.nxp.com/t5/Other-NXP-Products/CAN-BUS-communication/m-p/457004#M3313 PetrS 2015-05-26T08:46:34Z