Kinetis Microcontrollers中的主题 usb stack 4.1.1 https://community.nxp.com/t5/Kinetis-Microcontrollers/usb-stack-4-1-1/m-p/462207#M27720 <HTML><HEAD></HEAD><BODY><P>CDC device (KL25Z) - How can I tell when the data has gone out so that I can reload the send buffer without overwriting data that hasn't gone out yet?</P></BODY></HTML> Mon, 25 Jan 2016 21:06:56 GMT wba 2016-01-25T21:06:56Z usb stack 4.1.1 https://community.nxp.com/t5/Kinetis-Microcontrollers/usb-stack-4-1-1/m-p/462207#M27720 <HTML><HEAD></HEAD><BODY><P>CDC device (KL25Z) - How can I tell when the data has gone out so that I can reload the send buffer without overwriting data that hasn't gone out yet?</P></BODY></HTML> Mon, 25 Jan 2016 21:06:56 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/usb-stack-4-1-1/m-p/462207#M27720 wba 2016-01-25T21:06:56Z Re: usb stack 4.1.1 https://community.nxp.com/t5/Kinetis-Microcontrollers/usb-stack-4-1-1/m-p/462208#M27721 <HTML><HEAD></HEAD><BODY><P>Hi Bruce,</P><P>The USB Stack 4.1.1 provide the USB_Class_CDC_Interface_CIC_Send_Data() function to implement send data from CDC class over send endpoints.</P><P>It can return the parameter to reflect the executing status of the function and the return parameter can remind you to reload the send buffer properly.</P><P><span class="lia-inline-image-display-wrapper" image-alt="2016-01-26_14-38-28.jpg"><img src="https://community.nxp.com/t5/image/serverpage/image-id/1880i5D233EFE17039B58/image-size/large?v=v2&amp;px=999" role="button" title="2016-01-26_14-38-28.jpg" alt="2016-01-26_14-38-28.jpg" /></span></P><P></P><P>Have a great day,</P><P>Ping</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Tue, 26 Jan 2016 06:52:38 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/usb-stack-4-1-1/m-p/462208#M27721 jeremyzhou 2016-01-26T06:52:38Z