Content originally posted in LPCWare by ktownsend on Sat May 14 09:42:32 MST 2011
Quote: Sakphul
Hello
is it possible to use the On Chip USB Driver within the ROM for Communication via a Virtual COM Port?
I have seen the usbcdc example using a self written usb Driver which consumes about 6kB of Flash.
I would like to use the on-Chip USB Driver instead of this self written one. But within the Users manual of the LPC1343 it says that the On-Chip Driver only supports HID and MSC.
So is it possible to run a communications connection with the On-Chip Driver just by changing the USB Device Descriptor?
Generally, the UM doesn't (intentionally) lie. :) You can only use the on-chip drivers for HID and MSC. If you want CDC, etc., you'll have to roll your own.