RE: [avr-gcc-list] UART again

[Dean Ferreyra]

Hi Carsten,

> INTERRUPT( SIG_UART_DATA )
> {
>     static led = 0;
>
>     if( led & 1 )
>         sbi( PORTB, 1 );
>     else
>         cbi( PORTB, 1 );
>
>     outp( 0, UDR );
>
>     led++;
> }

I suggest that you use SIGNAL( SIG_UART_DATA ) instead.  When you use
INTERRUPT( ... ), interrupts are automatically enabled in the prologue code
before your C code is executed and (I think) this leads the MCU to
re-interrupt endlessly.

Dean