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Altera_Forum's avatar
Altera_Forum
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21 years ago

the program doesn't return from interrupt

I'm using the uart interrupt. when data is received trough the uart the program jump to perform the interrupt the problem is that the interrupt flag of the uart stays on and so th...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

If you're using your own handler then you need to make sure the HALs one doesn't get installed as well. The easiest way to do this is to run your initialisation code from main, but make sure the first thing it does (before touching any registers etc) is to unregister the interrupt handler.

Another way to do it (if you aren't replacing the whole initialisation scheme) would be to copy the UART files into your system library project and edit them there to replace the HAL code with your own.