How to set ISR in NiosII?

Hi Slacker,

Sorry,perhaps I did not describe my problem explicitly,

what I want is not writing a sheer ISR by myself, but I just want to

take advantage of the ISR routines which are the NiosII provided

and available to be used.

The code I posted above previously is

alt_irq_register(MY_UART_IRQ, (void*) &context, my_rxd);

IOWR_ALTERA_AVALON_UART_CONTROL(MY_UART_BASE, ALTERA_AVALON_UART_STATUS_RRDY_MSK);

I really don't know whether I 'm on the right way or not,

could you give me some suggestions about that?

Besides, I redirect my stdin and stdout in my system library properties

both to "my_uart", is that right?

Many thanks!

Regards,

Don