topic LPC1769 USB cannot write. in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/LPC1769-USB-cannot-write/m-p/578787#M19892 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by Mega on Mon Jun 29 11:22:31 MST 2015</STRONG><BR /><SPAN>Hi,</SPAN><BR /><SPAN>Im using nxpusblib 0.98 since lpcopen doesn't contain Massive Storage Device example.</SPAN><BR /><BR /><SPAN>I can read but cannot write.</SPAN><BR /><BR /><SPAN>The problem is this loop on EndpointStream_LPC.c</SPAN><BR /><BR /><SPAN>"#if defined(__LPC17XX__) || defined(__LPC177X_8X__)</SPAN><BR /><SPAN>if (endpointselected!=ENDPOINT_CONTROLEP)</SPAN><BR /><SPAN>while(usb_data_buffer_OUT_size == 0); /* Current Fix for LPC17xx, havent checked for others */</SPAN><BR /><SPAN>#endif</SPAN><BR /><BR /><BR /><SPAN>I tried to remove the code in red zone and starts to write. But it damages sectors 8192(with CSD info). If I eject the device at the next time I connect the device Windows asks to format.</SPAN><BR /><BR /><SPAN>Anyone got any idea?</SPAN><BR /><BR /><SPAN>Best Regards </SPAN><BR /><SPAN>Daniel</SPAN></BODY></HTML> Wed, 15 Jun 2016 20:19:21 GMT lpcware 2016-06-15T20:19:21Z LPC1769 USB cannot write. https://community.nxp.com/t5/LPC-Microcontrollers/LPC1769-USB-cannot-write/m-p/578787#M19892 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by Mega on Mon Jun 29 11:22:31 MST 2015</STRONG><BR /><SPAN>Hi,</SPAN><BR /><SPAN>Im using nxpusblib 0.98 since lpcopen doesn't contain Massive Storage Device example.</SPAN><BR /><BR /><SPAN>I can read but cannot write.</SPAN><BR /><BR /><SPAN>The problem is this loop on EndpointStream_LPC.c</SPAN><BR /><BR /><SPAN>"#if defined(__LPC17XX__) || defined(__LPC177X_8X__)</SPAN><BR /><SPAN>if (endpointselected!=ENDPOINT_CONTROLEP)</SPAN><BR /><SPAN>while(usb_data_buffer_OUT_size == 0); /* Current Fix for LPC17xx, havent checked for others */</SPAN><BR /><SPAN>#endif</SPAN><BR /><BR /><BR /><SPAN>I tried to remove the code in red zone and starts to write. But it damages sectors 8192(with CSD info). If I eject the device at the next time I connect the device Windows asks to format.</SPAN><BR /><BR /><SPAN>Anyone got any idea?</SPAN><BR /><BR /><SPAN>Best Regards </SPAN><BR /><SPAN>Daniel</SPAN></BODY></HTML> Wed, 15 Jun 2016 20:19:21 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC1769-USB-cannot-write/m-p/578787#M19892 lpcware 2016-06-15T20:19:21Z