I'm new to both the Linux and AVR scene (yes, I could be doing this on my XP box, but I figured I might as well learn a little bit about Linux in the process).
Anyway, I followed Dean's awesome tutorial on UART found here:
and was able to successfully communicate with Minicom via serial. However, when I try to make the communication interrupt driven:
the UART does not work. However, when compiled and loaded on the AVR via my Windows machine, everything works fine.
Please note that I am using an Atmega8518 on the STK500, Eclipse for the IDE, AVR-GCC, and Minicom. Also, I changed the ISR vector to ISR(UART_RX_vect), which is required for the 8515. I also added a statement which toggles an LED in the ISR, and since the LED does not toggle, I concluded that the program is not even entering the ISR.
I have searched on this issue, and the best I found was someone with the same issue posted in Dean's Interrupt-driven USART tutorial. However, no definitive answer (from what I could tell) was given as to what was causing this issue.
Any help would be most appreciated.