topic LPC1788 cannot write to CAN1CMR in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/LPC1788-cannot-write-to-CAN1CMR/m-p/522630#M5266 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by tetwin11 on Mon Sep 23 09:31:34 MST 2013</STRONG><BR /><SPAN>I'm trying to get the CAN peripheral up and running on a LPC1788, but I've hit a snag.</SPAN><BR /><SPAN>In the send function, I'm writing to CAN1CMR to request a transmit</SPAN><BR /><TABLE border="1"><TBODY><TR><TD bgcolor="#cacaca"> <PRE>CAN1CMR = CAN_CMR_SET_TX_REQUEST | CAN_CMR_SEL_TX_BUFF_1|CAN_CMR_SELF_RECEPTION;</PRE> </TD></TR></TBODY></TABLE><BR /><SPAN>But it doesnt seem to be doing anything. In the IAR Embedded Workbench, I can write directly to CAN1CMR while debugging and the transmission does seem to occur.</SPAN><BR /><SPAN>Why can't I write to CAN1CMR during normal operation????</SPAN><BR /><SPAN>Thanks</SPAN><BR /><SPAN>Matt</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:56:06 GMT lpcware 2016-06-15T17:56:06Z LPC1788 cannot write to CAN1CMR https://community.nxp.com/t5/LPC-Microcontrollers/LPC1788-cannot-write-to-CAN1CMR/m-p/522630#M5266 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by tetwin11 on Mon Sep 23 09:31:34 MST 2013</STRONG><BR /><SPAN>I'm trying to get the CAN peripheral up and running on a LPC1788, but I've hit a snag.</SPAN><BR /><SPAN>In the send function, I'm writing to CAN1CMR to request a transmit</SPAN><BR /><TABLE border="1"><TBODY><TR><TD bgcolor="#cacaca"> <PRE>CAN1CMR = CAN_CMR_SET_TX_REQUEST | CAN_CMR_SEL_TX_BUFF_1|CAN_CMR_SELF_RECEPTION;</PRE> </TD></TR></TBODY></TABLE><BR /><SPAN>But it doesnt seem to be doing anything. In the IAR Embedded Workbench, I can write directly to CAN1CMR while debugging and the transmission does seem to occur.</SPAN><BR /><SPAN>Why can't I write to CAN1CMR during normal operation????</SPAN><BR /><SPAN>Thanks</SPAN><BR /><SPAN>Matt</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:56:06 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC1788-cannot-write-to-CAN1CMR/m-p/522630#M5266 lpcware 2016-06-15T17:56:06Z