topic SCI help needed in Classic/Legacy CodeWarrior https://community.nxp.com/t5/Classic-Legacy-CodeWarrior/SCI-help-needed/m-p/213802#M6103 <HTML><HEAD></HEAD><BODY><P>I'm using the SCI3 on a MCF51CN128 processor. It's connected to a CP2102 chip to convert from UART to USB signals. I have my board connected to a PC running HyperTerminal and am trying to talk to the unit. It's working well in most situations.</P><P>&nbsp;</P><P>However, it will occasionally get into a state where the Vsci3rx interrupt is being triggered repeatedly by a single keypress.&nbsp; The interrupt continues indefinitly.</P><P>&nbsp;</P><P>What kinds of things should I look for and double-check?</P></BODY></HTML> Thu, 09 Jun 2011 22:02:45 GMT ignisuti 2011-06-09T22:02:45Z SCI help needed https://community.nxp.com/t5/Classic-Legacy-CodeWarrior/SCI-help-needed/m-p/213802#M6103 <HTML><HEAD></HEAD><BODY><P>I'm using the SCI3 on a MCF51CN128 processor. It's connected to a CP2102 chip to convert from UART to USB signals. I have my board connected to a PC running HyperTerminal and am trying to talk to the unit. It's working well in most situations.</P><P>&nbsp;</P><P>However, it will occasionally get into a state where the Vsci3rx interrupt is being triggered repeatedly by a single keypress.&nbsp; The interrupt continues indefinitly.</P><P>&nbsp;</P><P>What kinds of things should I look for and double-check?</P></BODY></HTML> Thu, 09 Jun 2011 22:02:45 GMT https://community.nxp.com/t5/Classic-Legacy-CodeWarrior/SCI-help-needed/m-p/213802#M6103 ignisuti 2011-06-09T22:02:45Z Re: SCI help needed https://community.nxp.com/t5/Classic-Legacy-CodeWarrior/SCI-help-needed/m-p/213803#M6104 <HTML><HEAD></HEAD><BODY><P>I figured out that I can fix the problem by placing the following line fo code in my interrupt. But why does this work. Help me understand please.</P><P>&nbsp;</P><PRE>while( XMIT_BUF_EMPTY_FLAG3 == 0 ) { ; }</PRE><P>&nbsp;</P></BODY></HTML> Fri, 10 Jun 2011 01:29:03 GMT https://community.nxp.com/t5/Classic-Legacy-CodeWarrior/SCI-help-needed/m-p/213803#M6104 ignisuti 2011-06-10T01:29:03Z