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Honored Contributor
Honored ContributorInterrupt handling
Hello guys, I got problems with my interrupt routines. One routine is for uart whitch means if a character comes in it'll be stored in a buffer array, the other one is for simple timer ticks. ...
Altera_ForumHonored Contributor
Honored ContributorHi Iftan, thank's for your reply.
My problem is very confuse. My ISR for the timer interrupt works perfect. I checked also the IPENDING register, if there is an incoming timer interrupt I can see 0x02 (for the timer interrupt flag), after that, the timer ISR enters. But my uart ISR doesn't work. I use HyperTerminal for communication. I checked the hardware with a simple polling routine. Every time I press an key the routine returns the character to HyperTerminal. Works fine but is laborious. I dont't see the changing of the IPENDING register, either. Could it be, that a hardware or software part blocks the uart interrupt request ???
