LPC Microcontrollers中的主题 USB device design question https://community.nxp.com/t5/LPC-Microcontrollers/USB-device-design-question/m-p/523502#M6138 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by djbuijs on Wed May 21 16:35:30 MST 2014</STRONG><BR /><SPAN>I am working on a product with an LPC1788 which needs the following USB features:</SPAN><BR /><SPAN>- Firmware upgrade over USB (from host PC to device, [u]not[/u] through a USB key).</SPAN><BR /><SPAN>- File upload from the device to the host.</SPAN><BR /><SPAN>- [optional] Ideally we'd also be able to get some information from the device like serial number etc, but this is not critical.</SPAN><BR /><BR /><SPAN>The device should only work with a custom program, so simply using a mass-storage device as-is will not do. There are quite a lot of data to upload (200MB +), so using USB bulk transfers seem necessary to me.</SPAN><BR /><BR /><SPAN>What is the best way to approach this? I was hoping to use nxpUSBlib or winUSB, so I don't have to go through the Windows driver validation process. What are my options? Is there some way to make the mass-storage device invisible for Windows? </SPAN><BR /><BR /><SPAN>I appreciate your input!</SPAN><BR /><SPAN>Dirk</SPAN><BR /></BODY></HTML> Wed, 15 Jun 2016 16:44:33 GMT lpcware 2016-06-15T16:44:33Z USB device design question https://community.nxp.com/t5/LPC-Microcontrollers/USB-device-design-question/m-p/523502#M6138 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by djbuijs on Wed May 21 16:35:30 MST 2014</STRONG><BR /><SPAN>I am working on a product with an LPC1788 which needs the following USB features:</SPAN><BR /><SPAN>- Firmware upgrade over USB (from host PC to device, [u]not[/u] through a USB key).</SPAN><BR /><SPAN>- File upload from the device to the host.</SPAN><BR /><SPAN>- [optional] Ideally we'd also be able to get some information from the device like serial number etc, but this is not critical.</SPAN><BR /><BR /><SPAN>The device should only work with a custom program, so simply using a mass-storage device as-is will not do. There are quite a lot of data to upload (200MB +), so using USB bulk transfers seem necessary to me.</SPAN><BR /><BR /><SPAN>What is the best way to approach this? I was hoping to use nxpUSBlib or winUSB, so I don't have to go through the Windows driver validation process. What are my options? Is there some way to make the mass-storage device invisible for Windows? </SPAN><BR /><BR /><SPAN>I appreciate your input!</SPAN><BR /><SPAN>Dirk</SPAN><BR /></BODY></HTML> Wed, 15 Jun 2016 16:44:33 GMT https://community.nxp.com/t5/LPC-Microcontrollers/USB-device-design-question/m-p/523502#M6138 lpcware 2016-06-15T16:44:33Z Re: USB device design question https://community.nxp.com/t5/LPC-Microcontrollers/USB-device-design-question/m-p/523503#M6139 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by xianghuiwang on Fri May 23 12:42:18 MST 2014</STRONG><BR /><SPAN>Hi, Dirk,</SPAN><BR /><SPAN>Maybe this USB secondary bootloader application note will help you:</SPAN><BR /><SPAN><A class="jive-link-external-small" href="https://community.nxp.com/external-link.jspa?url=http%3A%2F%2Fwww.lpcware.com%2Fcontent%2Fnxpfile%2Fan10866-lpc1700-secondary-usb-bootloader" rel="nofollow" target="_blank">http://www.lpcware.com/content/nxpfile/an10866-lpc1700-secondary-usb-bootloader</A></SPAN><BR /><BR /><SPAN>thanks,</SPAN></BODY></HTML> Wed, 15 Jun 2016 16:44:34 GMT https://community.nxp.com/t5/LPC-Microcontrollers/USB-device-design-question/m-p/523503#M6139 lpcware 2016-06-15T16:44:34Z