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Altera_Forum's avatar
Altera_Forum
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21 years ago

how to use timer

hello all I use the timer core ,but when i write the timer there is something wrong with it . my programm is : void handle_time_interrupt() { IOWR_ALTERA_AVALON_TIMER_CONTROL(TIMER_0_BA...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

I suspect that your problem is that a driver is using the timer at the same time as your code, which is not a good position to be in. You can confirm this by looking in the file alt_sys_init.c if you find a MACRO TIMER_0_INIT then my diagnosis is correct.

You should read the Nios II Software Developers Handbook to learn more about the automaticallt installed drivers and how to remove them.