topic Re: UART0 receiving and baudrate issues in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/UART0-receiving-and-baudrate-issues/m-p/525898#M8534 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by Stefan Summerauer on Mon Oct 14 09:21:31 MST 2013</STRONG><BR /><SPAN>I found the problem.</SPAN><BR /><BR /><SPAN>The value of the DLL register must be 3 or greater if you use the FDR register. This information was in the usermanual ;-)</SPAN></BODY></HTML> Wed, 15 Jun 2016 16:59:35 GMT lpcware 2016-06-15T16:59:35Z UART0 receiving and baudrate issues https://community.nxp.com/t5/LPC-Microcontrollers/UART0-receiving-and-baudrate-issues/m-p/525897#M8533 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by Stefan Summerauer on Mon Oct 14 04:01:09 MST 2013</STRONG><BR /><SPAN>Hello</SPAN><BR /><BR /><SPAN>I want to configure the UART0&nbsp; as an interrupt driven full duplex connection to my computer.</SPAN><BR /><SPAN>At baudrates up to 115200 sending and receiving works fine. </SPAN><BR /><SPAN>At higher baudrates following problem occurs: After getting an Receive Interrupt, in LPC_UART0-&gt;RBR is not the byte i have sent from my computer. </SPAN><BR /><SPAN>Sending data from the LPC1227 to the computer works fine, also at higher baudrates. So i think the baudrate is configured correctly.</SPAN><BR /><BR /><SPAN>My questions are:</SPAN><BR /><SPAN>What are the max UART0 baudrates of LPC1227 for sending and receiving? I can't find it in any datasheet.</SPAN><BR /><SPAN>Is there anything different at higher baudrates, when reading from the ReceiveBufferRegister in my UART0_IRQHandler .</SPAN><BR /><BR /><SPAN>Any ideas?</SPAN></BODY></HTML> Wed, 15 Jun 2016 16:59:35 GMT https://community.nxp.com/t5/LPC-Microcontrollers/UART0-receiving-and-baudrate-issues/m-p/525897#M8533 lpcware 2016-06-15T16:59:35Z Re: UART0 receiving and baudrate issues https://community.nxp.com/t5/LPC-Microcontrollers/UART0-receiving-and-baudrate-issues/m-p/525898#M8534 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by Stefan Summerauer on Mon Oct 14 09:21:31 MST 2013</STRONG><BR /><SPAN>I found the problem.</SPAN><BR /><BR /><SPAN>The value of the DLL register must be 3 or greater if you use the FDR register. This information was in the usermanual ;-)</SPAN></BODY></HTML> Wed, 15 Jun 2016 16:59:35 GMT https://community.nxp.com/t5/LPC-Microcontrollers/UART0-receiving-and-baudrate-issues/m-p/525898#M8534 lpcware 2016-06-15T16:59:35Z