topic LPC11U24 zero length packets in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/LPC11U24-zero-length-packets/m-p/523255#M5891 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by lpcware_user on Tue Mar 04 07:18:34 MST 2014</STRONG><BR /><SPAN>hi there,</SPAN><BR /><BR /><SPAN>we want to use a LPC11U24 mcu. The controller looks fine but i missed a detail. I have made good experience with</SPAN><BR /><SPAN>the LPCUSBlib (running on LPC1833) and the hardware is working fine. For the LPC11U24 i want to know if it's</SPAN><BR /><SPAN>possible to generate a zero packet for an IN endpoint ?</SPAN><BR /><BR /><SPAN>Example:</SPAN><BR /><SPAN>I want to transfer 128 bytes to the host but the buffer must be "closed" using a zero packet. I can call</SPAN><BR /><SPAN>DcdDataTransfer() to prime the data for transmission. Either 128 bytes at all, or using two steps with 64 bytes each.</SPAN><BR /><SPAN>But can i call DcdDataTransfer() with length = 0 ?? Is the USB hardware generating a zero packet ?</SPAN><BR /><BR /><SPAN>Regards</SPAN><BR /><SPAN>lpcware_user</SPAN></BODY></HTML> Wed, 15 Jun 2016 16:44:11 GMT lpcware 2016-06-15T16:44:11Z LPC11U24 zero length packets https://community.nxp.com/t5/LPC-Microcontrollers/LPC11U24-zero-length-packets/m-p/523255#M5891 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by lpcware_user on Tue Mar 04 07:18:34 MST 2014</STRONG><BR /><SPAN>hi there,</SPAN><BR /><BR /><SPAN>we want to use a LPC11U24 mcu. The controller looks fine but i missed a detail. I have made good experience with</SPAN><BR /><SPAN>the LPCUSBlib (running on LPC1833) and the hardware is working fine. For the LPC11U24 i want to know if it's</SPAN><BR /><SPAN>possible to generate a zero packet for an IN endpoint ?</SPAN><BR /><BR /><SPAN>Example:</SPAN><BR /><SPAN>I want to transfer 128 bytes to the host but the buffer must be "closed" using a zero packet. I can call</SPAN><BR /><SPAN>DcdDataTransfer() to prime the data for transmission. Either 128 bytes at all, or using two steps with 64 bytes each.</SPAN><BR /><SPAN>But can i call DcdDataTransfer() with length = 0 ?? Is the USB hardware generating a zero packet ?</SPAN><BR /><BR /><SPAN>Regards</SPAN><BR /><SPAN>lpcware_user</SPAN></BODY></HTML> Wed, 15 Jun 2016 16:44:11 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC11U24-zero-length-packets/m-p/523255#M5891 lpcware 2016-06-15T16:44:11Z Re: LPC11U24 zero length packets https://community.nxp.com/t5/LPC-Microcontrollers/LPC11U24-zero-length-packets/m-p/523256#M5892 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by liaochengyi on Wed Apr 02 18:48:17 MST 2014</STRONG><BR /><SPAN>Yes, </SPAN><BR /><BR /><SPAN>I also need know how to send zero length packets when data ending&nbsp; used bulk in transfer in LPC11Uxx.</SPAN><BR /><BR /><SPAN>If someone will answer the question?&nbsp; NXP guys will help that?</SPAN><BR /><BR /><SPAN>3Q</SPAN><BR /><SPAN>Best Regards,</SPAN><BR /><SPAN>Chengyi</SPAN></BODY></HTML> Wed, 15 Jun 2016 16:44:12 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC11U24-zero-length-packets/m-p/523256#M5892 lpcware 2016-06-15T16:44:12Z