LPC MicrocontrollersのトピックLPC1768FBD100 USB Host communicate with keyboards. https://community.nxp.com/t5/LPC-Microcontrollers/LPC1768FBD100-USB-Host-communicate-with-keyboards/m-p/516828#M1876 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by CH Wu on Mon Dec 08 08:16:06 MST 2014</STRONG><BR /><SPAN>Attached please find the debug information. The followings are for summaries for your reference.</SPAN><BR /><BR /><SPAN>1.The viewer to open the USB log file. </SPAN><BR /><SPAN><A _jive_internal="true" class="" href="https://community.nxp.com/external-link.jspa?url=http%3A%2F%2Fwww.ellisys.com%2Fproducts%2Fdownload%2Fvisualusb.msi">http://www.ellisys.com/products/download/visualusb.msi</A></SPAN><BR /><BR /><SPAN>2.If the sent data is more than&nbsp; one byte, there is no problem when re-sends the data.</SPAN><BR /><SPAN>3.The retry is done by the hardware, the software does nothing for it.</SPAN><BR /><SPAN>4.The phenomenon can be reproduced by the attached software and NXP ev board. We change nothing to USBHostLite from LPCWare&nbsp; except calling the USB_Host_SendControlRequest to send one byte data.</SPAN><BR /><SPAN>Project file:&nbsp; applications\lpc17xx_40xx\keil_uvision_projects\nxp_lpcxpresso_1769\nxp_lpcxpresso_1769_lpcusblib_host_examples.uvmpw</SPAN><BR /><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-338027">NXPHost.zip</A></STRONG></P></BODY></HTML> Wed, 15 Jun 2016 17:25:24 GMT lpcware 2016-06-15T17:25:24Z LPC1768FBD100 USB Host communicate with keyboards. https://community.nxp.com/t5/LPC-Microcontrollers/LPC1768FBD100-USB-Host-communicate-with-keyboards/m-p/516828#M1876 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by CH Wu on Mon Dec 08 08:16:06 MST 2014</STRONG><BR /><SPAN>Attached please find the debug information. The followings are for summaries for your reference.</SPAN><BR /><BR /><SPAN>1.The viewer to open the USB log file. </SPAN><BR /><SPAN><A _jive_internal="true" class="" href="https://community.nxp.com/external-link.jspa?url=http%3A%2F%2Fwww.ellisys.com%2Fproducts%2Fdownload%2Fvisualusb.msi">http://www.ellisys.com/products/download/visualusb.msi</A></SPAN><BR /><BR /><SPAN>2.If the sent data is more than&nbsp; one byte, there is no problem when re-sends the data.</SPAN><BR /><SPAN>3.The retry is done by the hardware, the software does nothing for it.</SPAN><BR /><SPAN>4.The phenomenon can be reproduced by the attached software and NXP ev board. We change nothing to USBHostLite from LPCWare&nbsp; except calling the USB_Host_SendControlRequest to send one byte data.</SPAN><BR /><SPAN>Project file:&nbsp; applications\lpc17xx_40xx\keil_uvision_projects\nxp_lpcxpresso_1769\nxp_lpcxpresso_1769_lpcusblib_host_examples.uvmpw</SPAN><BR /><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-338027">NXPHost.zip</A></STRONG></P></BODY></HTML> Wed, 15 Jun 2016 17:25:24 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC1768FBD100-USB-Host-communicate-with-keyboards/m-p/516828#M1876 lpcware 2016-06-15T17:25:24Z