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Altera_Forum's avatar
Altera_Forum
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22 years ago

Nios II Timer

I have the need for a 10 mS periodic timer interrupt for my system. I used the timer in the SOPC builder and selected a time base of 10 mS. To keep the size low, I opted for the simple periodic tim...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

but the problem what I faced is the delay is not accurate for the first time, after that it works fine.

alt_start_alarm(for 4 sec) ...............5secs................ callback called .........4sec.........callback called.............4sec...........callback called

why it take 5 sec for the first time. Is it because the function alt_start_alarm take 1 sec extra