Kinetis MicrocontrollersのトピックRe: MKW22D512 - How to use the internal 1.2V reference for ADC? https://community.nxp.com/t5/Kinetis-Microcontrollers/MKW22D512-How-to-use-the-internal-1-2V-reference-for-ADC/m-p/469085#M28339 <HTML><HEAD></HEAD><BODY><P>Hi GLAUCIO GUIA</P><P></P><P>VREF is a module that has to be enable, hence, it is not always enable, if you want to do this in KSDK you can do it with CLOCK_SYS_EnableVrefClock(0); before you initialize your ADC: NOTE: PMC_REGSC[BGEN] bit must be set if the VREF regulator is required to remain operating in VLPx modes</P><P></P><P>Since VREF is not related with VREFH and VREFL pins, so yes, there is not problem if you use it as ADC reference. </P><P></P><P>Hope this help!<BR />Have a great day,<BR />Jorge Alcala</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Fri, 03 Jun 2016 21:57:49 GMT jorge_a_vazquez 2016-06-03T21:57:49Z MKW22D512 - How to use the internal 1.2V reference for ADC? https://community.nxp.com/t5/Kinetis-Microcontrollers/MKW22D512-How-to-use-the-internal-1-2V-reference-for-ADC/m-p/469084#M28338 <HTML><HEAD></HEAD><BODY><P><BR />Is the 1.2V internal reference always enabled?</P><P></P><P>I'm using the ADC16_DRV_Init() function (Kinetis SDK) for ADC module initialization. In the parameter refVoltSrc I'm using the value kAdc16RefVoltSrcOfValt. Is it enough to use the internal 1.2V as ADC reference?</P><P></P><P>adcUserConfig.refVoltSrc = kAdc16RefVoltSrcOfValt;</P><P></P><P>Thank you</P><P>Glaucio Guia.</P></BODY></HTML> Wed, 01 Jun 2016 06:11:08 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/MKW22D512-How-to-use-the-internal-1-2V-reference-for-ADC/m-p/469084#M28338 glaucioguia 2016-06-01T06:11:08Z Re: MKW22D512 - How to use the internal 1.2V reference for ADC? https://community.nxp.com/t5/Kinetis-Microcontrollers/MKW22D512-How-to-use-the-internal-1-2V-reference-for-ADC/m-p/469085#M28339 <HTML><HEAD></HEAD><BODY><P>Hi GLAUCIO GUIA</P><P></P><P>VREF is a module that has to be enable, hence, it is not always enable, if you want to do this in KSDK you can do it with CLOCK_SYS_EnableVrefClock(0); before you initialize your ADC: NOTE: PMC_REGSC[BGEN] bit must be set if the VREF regulator is required to remain operating in VLPx modes</P><P></P><P>Since VREF is not related with VREFH and VREFL pins, so yes, there is not problem if you use it as ADC reference. </P><P></P><P>Hope this help!<BR />Have a great day,<BR />Jorge Alcala</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Fri, 03 Jun 2016 21:57:49 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/MKW22D512-How-to-use-the-internal-1-2V-reference-for-ADC/m-p/469085#M28339 jorge_a_vazquez 2016-06-03T21:57:49Z