S12 / MagniV MicrocontrollersのトピックSCI Communication Error https://community.nxp.com/t5/S12-MagniV-Microcontrollers/SCI-Communication-Error/m-p/200258#M8088 <HTML><HEAD></HEAD><BODY><P><SPAN style="font-family: 'comic sans ms,sans-serif';">Hi,</SPAN></P><P><SPAN style="font-family: 'Comic Sans MS';">We have a situation in our software, need to detect SCI port is grounded i.e. "RX pin is pulled low from external environment".</SPAN></P><P><SPAN style="font-family: 'Comic Sans MS';">&nbsp;</SPAN></P><P><SPAN style="font-family: 'Comic Sans MS';">How would I know, whether received data is 0 or RX pin is grounded?</SPAN></P><P><SPAN style="font-family: 'Comic Sans MS';">&nbsp;</SPAN></P><P><SPAN style="font-family: 'Comic Sans MS';">Rgds</SPAN></P><P><SPAN style="font-family: 'Comic Sans MS';">Vignesh A</SPAN></P></BODY></HTML> Sat, 18 Jul 2009 05:00:39 GMT Vicky 2009-07-18T05:00:39Z SCI Communication Error https://community.nxp.com/t5/S12-MagniV-Microcontrollers/SCI-Communication-Error/m-p/200258#M8088 <HTML><HEAD></HEAD><BODY><P><SPAN style="font-family: 'comic sans ms,sans-serif';">Hi,</SPAN></P><P><SPAN style="font-family: 'Comic Sans MS';">We have a situation in our software, need to detect SCI port is grounded i.e. "RX pin is pulled low from external environment".</SPAN></P><P><SPAN style="font-family: 'Comic Sans MS';">&nbsp;</SPAN></P><P><SPAN style="font-family: 'Comic Sans MS';">How would I know, whether received data is 0 or RX pin is grounded?</SPAN></P><P><SPAN style="font-family: 'Comic Sans MS';">&nbsp;</SPAN></P><P><SPAN style="font-family: 'Comic Sans MS';">Rgds</SPAN></P><P><SPAN style="font-family: 'Comic Sans MS';">Vignesh A</SPAN></P></BODY></HTML> Sat, 18 Jul 2009 05:00:39 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/SCI-Communication-Error/m-p/200258#M8088 Vicky 2009-07-18T05:00:39Z Re: SCI Communication Error https://community.nxp.com/t5/S12-MagniV-Microcontrollers/SCI-Communication-Error/m-p/200259#M8089 <HTML><HEAD></HEAD><BODY><P>Hi,&nbsp;</P><P>Controller used is HCS12X. Is there any way to identify SCI error - "Short to GND" and/or "Short to VBATT" conditions?</P><P>&nbsp;</P><P>Rgds</P><P>Vignesh A</P><P>&nbsp;</P><P>&nbsp;</P></BODY></HTML> Sat, 18 Jul 2009 10:34:18 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/SCI-Communication-Error/m-p/200259#M8089 Vicky 2009-07-18T10:34:18Z Re: SCI Communication Error https://community.nxp.com/t5/S12-MagniV-Microcontrollers/SCI-Communication-Error/m-p/200260#M8090 <HTML><HEAD></HEAD><BODY><P>Hi Vicky,</P><P>&nbsp;</P><P>I think you can use the Bit Error Detection functions to check the state of RX pin. (if you have SCI V5)</P><P>&nbsp;</P><P>Please look at two bit BERRV in the SCIASR1 register. It might help u solve your problem.</P><P>&nbsp;</P><P>Regards,&nbsp;</P><P>&nbsp;</P><P>VHung</P></BODY></HTML> Thu, 30 Jul 2009 15:27:57 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/SCI-Communication-Error/m-p/200260#M8090 VietHung 2009-07-30T15:27:57Z