topic I.MX23 LRADC in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/I-MX23-LRADC/m-p/249829#M22546 <HTML><HEAD></HEAD><BODY><P style="font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; color: #3d3d3d;">Hello,</P><P></P><P style="font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; color: #3d3d3d;"><SPAN style="font-style: inherit;">I am using i.MX233 EVK from FSL ,and the Linux 2.6.31.</SPAN></P><P style="font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; color: #3d3d3d;"><SPAN style="font-style: inherit;">I am</SPAN><SPAN style="color: #575757; font-family: arial, helvetica, sans-serif; font-size: 10pt; line-height: 1.5em;"> using LRADC channel 1 to read potentiometer voltage. I am able to read LRADC channel 1,but which is giving constant values(529/530/531). Is this channel internally configured to read some other voltages? If it is so how to deconfigure that ?</SPAN></P><P></P><P></P><P>Regards,</P><P>Sujatha</P></BODY></HTML> Mon, 12 Aug 2013 04:55:49 GMT sujathap_m_ 2013-08-12T04:55:49Z I.MX23 LRADC https://community.nxp.com/t5/i-MX-Processors/I-MX23-LRADC/m-p/249829#M22546 <HTML><HEAD></HEAD><BODY><P style="font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; color: #3d3d3d;">Hello,</P><P></P><P style="font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; color: #3d3d3d;"><SPAN style="font-style: inherit;">I am using i.MX233 EVK from FSL ,and the Linux 2.6.31.</SPAN></P><P style="font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; color: #3d3d3d;"><SPAN style="font-style: inherit;">I am</SPAN><SPAN style="color: #575757; font-family: arial, helvetica, sans-serif; font-size: 10pt; line-height: 1.5em;"> using LRADC channel 1 to read potentiometer voltage. I am able to read LRADC channel 1,but which is giving constant values(529/530/531). Is this channel internally configured to read some other voltages? If it is so how to deconfigure that ?</SPAN></P><P></P><P></P><P>Regards,</P><P>Sujatha</P></BODY></HTML> Mon, 12 Aug 2013 04:55:49 GMT https://community.nxp.com/t5/i-MX-Processors/I-MX23-LRADC/m-p/249829#M22546 sujathap_m_ 2013-08-12T04:55:49Z Re: I.MX23 LRADC https://community.nxp.com/t5/i-MX-Processors/I-MX23-LRADC/m-p/249830#M22547 <HTML><HEAD></HEAD><BODY><P>Sujatha,</P><P></P><P>LRADC1 channel is connected to external MIC for MIC bias in EVK board. Why do you want to read external voltage value at this channel? </P><P>Do you want to measure external voltage from LRADC1 channel without MIC function, right? </P><P></P><P>Best regards,</P><P>Paul</P></BODY></HTML> Tue, 13 Aug 2013 09:35:03 GMT https://community.nxp.com/t5/i-MX-Processors/I-MX23-LRADC/m-p/249830#M22547 Paul_Kang 2013-08-13T09:35:03Z