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Altera_Forum
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20 years ago

NIOS II Problem with Interrupt Timer

I'm using the Cyclone II Development Kit. Using SOPC builder I added a timer to the NIOS2 in "standard" project. I configured the timer to be an Interrupt timer with a period of 500 microsecond...
Altera_Forum's avatar
Altera_Forum
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20 years ago

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originally posted by dough1a+mar 20 2006, 01:38 pm--><div class='quotetop'>quote (dough1a @ mar 20 2006, 01:38 pm)</div>

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<!--quotebegin-paolo.gai@Mar 20 2006, 11:47 AM

i used something like 

  /* set to free running mode */
  iowr_altera_avalon_timer_control (high_res_timer_base, 
            altera_avalon_timer_control_ito_msk  |
            altera_avalon_timer_control_cont_msk |
            altera_avalon_timer_control_start_msk);
  /* register the interrupt handler, and enable the interrupt */
    
  alt_irq_register (high_res_timer_irq, null, handle_timer_interrupt);

to program the highres timer in the standard example... it worked for me.

paolo

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Thanks. I used the same code for the highres timer and it worked fine; but when I add an additional timer with the same attributes as the highres timer I can&#39;t seem to get the interrupt to be generated.

Doug