Usb Interfacing With Pic Microcontroller[Step by Step]

USB communication is better than serial communication , i think . Hardware interfacing is very easier than Rs 232 . In USB 1.0 communication Low Speed -1.5Mbit/second & High Speed -12Mbit/second . The upgrade version brings upgrade speed than older . USB-3.0 has higher speed , 5Gbit/second and it's called super speed .For more information you can visit this page >> Wikipedia Usb.In this tutorial i will use pic18f2550 microcontroller & it is very popular for usb .Now you can make a question , when usb gets high speed or low speed . At 6MHz clock we will get low speed and at 48MHz Clock we will get High speed . In this tutorial we will try to make higher speed connection .We are not going to use 48MHz ,because it is very noisy .We will try another technique instead of itget more tutorial here http://www.pictutorial.net