AVR-Chat

On Sat, 2005-08-06 at 00:08 +0800, Kathy Quinlan wrote:
> Jim Wagner wrote:
> > The scheme suggested below is good, but I would use the
> > named aliases for the vector addresses. That way, when you
> > change processors, all that is automatically managed.
> ALL is not AUTOMATICALLY managed, Atmel in their infinite wisdom has 
> named parts with 2 serial ports Uart1 and Uart2 while single serial
> port devices are just Uart, and some even have Usart instead, as
> always, RTFM , as it is VERY confusing and can cause problems :(

  Yes, always RTFM.

  As for the difference between labelling as UART and USART, keep in
mind that a USART is *NOTY* the same thing as a UART.

  A "UART" is a Universal Asynchronus Receiver Transmitter, whereas a
USART is a Universal Synchronus/Asychronus Receiver Transmitter.
Different (tholught similar) functions.  A USART can do anything a UART
can do, bnut NOT vice-versa!

Tom