I am using a k64F uP and implemented the USB CDC driver (KSDK+MQX). Up till now, I had been sending 64 bytes of data over the virtual com port and everything has been working fine. When I started sending data that is 280 bytes long, I noticed that I get multiple USB_APP_CDC_DTE_ACTIVATED events. Nothing bad seems to be happening, but am wondering if this is normal? I'm not a USB expert, and not sure if my Windows box is doing a flow control or pacing data - or if something weird is going on that I should be concerned about.