topic 50 MHz sample code usb_host on FRDM-K20D50M in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/50-MHz-sample-code-usb-host-on-FRDM-K20D50M/m-p/264888#M8441 <HTML><HEAD></HEAD><BODY><P>In the 50 MHz sample code, the usb_host project, the Readme.txt says...</P><P></P><P>FRDM-K20D50M setup</P><P>----------------</P><P>Use default jumper setting for board.</P><P></P><P>However, the schematic for this board indicates </P><P></P><P>OPTIONAL USB HOST FUNCTIONALITY </P><P>POPULATE THESE </P><P>PARTS FOR </P><P>USB HOST FUNCTIONALITY</P><P></P><P>And the parts indicated are J21 and R82.</P><P></P><P>Just making sure I need to break out the soldering iron before I do.</P><P></P><P>Roger</P></BODY></HTML> Fri, 04 Oct 2013 15:28:41 GMT rogerfl 2013-10-04T15:28:41Z 50 MHz sample code usb_host on FRDM-K20D50M https://community.nxp.com/t5/Kinetis-Microcontrollers/50-MHz-sample-code-usb-host-on-FRDM-K20D50M/m-p/264888#M8441 <HTML><HEAD></HEAD><BODY><P>In the 50 MHz sample code, the usb_host project, the Readme.txt says...</P><P></P><P>FRDM-K20D50M setup</P><P>----------------</P><P>Use default jumper setting for board.</P><P></P><P>However, the schematic for this board indicates </P><P></P><P>OPTIONAL USB HOST FUNCTIONALITY </P><P>POPULATE THESE </P><P>PARTS FOR </P><P>USB HOST FUNCTIONALITY</P><P></P><P>And the parts indicated are J21 and R82.</P><P></P><P>Just making sure I need to break out the soldering iron before I do.</P><P></P><P>Roger</P></BODY></HTML> Fri, 04 Oct 2013 15:28:41 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/50-MHz-sample-code-usb-host-on-FRDM-K20D50M/m-p/264888#M8441 rogerfl 2013-10-04T15:28:41Z Re: 50 MHz sample code usb_host on FRDM-K20D50M https://community.nxp.com/t5/Kinetis-Microcontrollers/50-MHz-sample-code-usb-host-on-FRDM-K20D50M/m-p/264889#M8442 <HTML><HEAD></HEAD><BODY><P>Hello Roger-san,</P><P></P><P>had you succeeded to execute it?<BR />I have executed the usb_host sample code.<BR />From my experience, it will be OK only to connect J21 jumper.<BR />"Use default jumper setting for board" would be incorrect.</P><P></P><P>Best regards,<BR />Yasuhiko Koumoto.</P></BODY></HTML> Sun, 07 Sep 2014 00:54:53 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/50-MHz-sample-code-usb-host-on-FRDM-K20D50M/m-p/264889#M8442 yasuhikokoumoto 2014-09-07T00:54:53Z Re: 50 MHz sample code usb_host on FRDM-K20D50M https://community.nxp.com/t5/Kinetis-Microcontrollers/50-MHz-sample-code-usb-host-on-FRDM-K20D50M/m-p/264890#M8443 <HTML><HEAD></HEAD><BODY><P>Hello Yasuhiko:</P><P></P><P>You are correct, J21 has to be placed for USB Host to work. The code developers omitted this by mistake, because all the other projects work OK without J21.</P><P></P><P>Regards!</P><P>Jorge Gonzalez</P></BODY></HTML> Tue, 09 Sep 2014 01:46:31 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/50-MHz-sample-code-usb-host-on-FRDM-K20D50M/m-p/264890#M8443 Jorge_Gonzalez 2014-09-09T01:46:31Z