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Altera_Forum's avatar
Altera_Forum
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16 years ago

questions about uarts

Hi all, I'm starting a new development with NIOS II and I have some questions regarding UART usage. First of all, I will briefly explain my application: I need 4 UARTs on my system. O...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

I would be tempted to write the uart access code - not even using interrupts.

It is likely that your main 'idle' loop will be executed often enough to pick up the characters directly from the uart fifos.

If you avoid the stdio functions the only initialisation instructions needed before running C code are those to setup sp and gp - and they can be added by the linker script!