Kinetis Microcontrollers中的主题 Re: How can I tell which pins support pull-ups/pull-downs/open collector/etc, (K60DN512VMD10) ? https://community.nxp.com/t5/Kinetis-Microcontrollers/How-can-I-tell-which-pins-support-pull-ups-pull-downs-open/m-p/252633#M7246 <HTML><HEAD></HEAD><BODY><P>I think you will find almost all I/O pins share full functionality, unless the 'signal multiplexing' or 'Chip Configuration/GPIO Configuration' sections state specifically otherwise (like for a shared crystal pin or such).&nbsp; One bit of warning:&nbsp; The internal pull-ups are called out as 20K to 50K, and 50K may be a little 'high' for jumper access.</P></BODY></HTML> Fri, 01 Nov 2013 15:36:06 GMT egoodii 2013-11-01T15:36:06Z How can I tell which pins support pull-ups/pull-downs/open collector/etc, (K60DN512VMD10) ? https://community.nxp.com/t5/Kinetis-Microcontrollers/How-can-I-tell-which-pins-support-pull-ups-pull-downs-open/m-p/252632#M7245 <HTML><HEAD></HEAD><BODY><P>The reference manual seems to be pretty good at telling me _how_ to configure the features...but cautions that the features may only be supported on selected pins.&nbsp; How do I determine which selected pins?&nbsp; </P><P></P><P>I intend to configure two pins as GPIO (with internal pull-ups) and just shorting jumpers connected to the pins.&nbsp; Open=high input, jumpered = low input.&nbsp; </P><P></P><P>John</P></BODY></HTML> Fri, 01 Nov 2013 14:21:54 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/How-can-I-tell-which-pins-support-pull-ups-pull-downs-open/m-p/252632#M7245 jpa 2013-11-01T14:21:54Z Re: How can I tell which pins support pull-ups/pull-downs/open collector/etc, (K60DN512VMD10) ? https://community.nxp.com/t5/Kinetis-Microcontrollers/How-can-I-tell-which-pins-support-pull-ups-pull-downs-open/m-p/252633#M7246 <HTML><HEAD></HEAD><BODY><P>I think you will find almost all I/O pins share full functionality, unless the 'signal multiplexing' or 'Chip Configuration/GPIO Configuration' sections state specifically otherwise (like for a shared crystal pin or such).&nbsp; One bit of warning:&nbsp; The internal pull-ups are called out as 20K to 50K, and 50K may be a little 'high' for jumper access.</P></BODY></HTML> Fri, 01 Nov 2013 15:36:06 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/How-can-I-tell-which-pins-support-pull-ups-pull-downs-open/m-p/252633#M7246 egoodii 2013-11-01T15:36:06Z