LPC MicrocontrollersのトピックUSB_CDC ROM Driver Project USB Device Not Recognized Problem https://community.nxp.com/t5/LPC-Microcontrollers/USB-CDC-ROM-Driver-Project-USB-Device-Not-Recognized-Problem/m-p/524514#M7150 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by sarangkalbande on Tue Oct 08 02:19:00 MST 2013</STRONG><BR /><SPAN>Hi,</SPAN><BR /><SPAN>I am working on USB_CDC ROM Driver project which suppose to send some data to host PC.</SPAN><BR /><SPAN>My device was working fine like when I connect My device to PC ,it detects the device type as LPC and after installing drivers It works fine.</SPAN><BR /><BR /><SPAN>But sometimes In between when I disconnect and connect the device It shows "USB Device Not Recognized" Problem.But after 1-2 Hr again device starts detection on HOST PC.</SPAN><BR /><BR /><SPAN>What could be the problem and possible solutions?</SPAN><BR /><BR /><SPAN>I have checked the connections and everything is fine from hardware side.</SPAN></BODY></HTML> Wed, 15 Jun 2016 16:49:48 GMT lpcware 2016-06-15T16:49:48Z USB_CDC ROM Driver Project USB Device Not Recognized Problem https://community.nxp.com/t5/LPC-Microcontrollers/USB-CDC-ROM-Driver-Project-USB-Device-Not-Recognized-Problem/m-p/524514#M7150 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by sarangkalbande on Tue Oct 08 02:19:00 MST 2013</STRONG><BR /><SPAN>Hi,</SPAN><BR /><SPAN>I am working on USB_CDC ROM Driver project which suppose to send some data to host PC.</SPAN><BR /><SPAN>My device was working fine like when I connect My device to PC ,it detects the device type as LPC and after installing drivers It works fine.</SPAN><BR /><BR /><SPAN>But sometimes In between when I disconnect and connect the device It shows "USB Device Not Recognized" Problem.But after 1-2 Hr again device starts detection on HOST PC.</SPAN><BR /><BR /><SPAN>What could be the problem and possible solutions?</SPAN><BR /><BR /><SPAN>I have checked the connections and everything is fine from hardware side.</SPAN></BODY></HTML> Wed, 15 Jun 2016 16:49:48 GMT https://community.nxp.com/t5/LPC-Microcontrollers/USB-CDC-ROM-Driver-Project-USB-Device-Not-Recognized-Problem/m-p/524514#M7150 lpcware 2016-06-15T16:49:48Z