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Altera_Forum's avatar
Altera_Forum
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19 years ago

and another uart problem.

hello guys, i'm having a problem with my FIFOED UART, The only thing im trying to do i send a big file over the uart and show on the Nios 2 Console that the data actually is being received...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

I agree too. You should have a while loop and read data until there is no more. I usually use a timeout to determine when there is no more. When you don't receive any data for at least 1 byte... or you can you 2 bytes (10 bits @ 9600 bits per second) then you can exit the loop. I use the timestamp functions in the HAL to determine the time to use the timeout.

Also... I have used printf's inside the interrupts with no problems however I only use them for debugging to make sure the interrupt is firing... then I comment them out.