AVR-Chat

At 09:05 AM 10/03/2009, you wrote:
>The problem is that the equation I quoted IS giving me the right baud.
>I don't know why..

You always get the gremlins, may have to move country!!

Have a look at the uart.c file in the example folder
(C:\WinAVR-20081205\doc\avr-libc\examples\stdiodemo)

The only thing I can think of of is that the clock is not
correct (which you have verified) OR the compiler THINKS is
something else.

Maybe the lack of UL in your #define F_CPU 4000000UL??

Regards

John Samperi

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On Mon, Mar 9, 2009 at 7:19 PM, John Samperi
<samperi@ampertronics.com.au> wrote:
> At 09:05 AM 10/03/2009, you wrote:
>>The problem is that the equation I quoted IS giving me the right baud.
>>I don't know why..
>
> You always get the gremlins, may have to move country!!

:) I have the atmel guy coming in with Arrow on friday.

> Have a look at the uart.c file in the example folder
> (C:\WinAVR-20081205\doc\avr-libc\examples\stdiodemo)
>
> The only thing I can think of of is that the clock is not
> correct (which you have verified) OR the compiler THINKS is
> something else.

My T0 int is firing exactly where I expect, 1mS.  Xtal verified by
scope on Xtal pins.
Fuses set to external osc.

> Maybe the lack of UL in your #define F_CPU 4000000UL??

It's generated by Studio..